Postgre sql index
•Download as PPTX, PDF•
0 likes•93 views
This document discusses setting up tables and indexes in a PostgreSQL database. It creates three tables - accounts, blogs, and posts - with primary keys and foreign key relationships. It then provides examples of common queries on these tables, such as seeing all posts by a user or blogs created by a user. It also discusses using Python to generate fake data for loading into the tables. Finally, it analyzes a query performance before and after adding an index to the posts table on the blog_id column.
Report
Share
Report
Share
Recommended
TYPO3 User Group - Lausanne - 12 novembre 2013
TYPO3 Neos 1.0 is a new content management framework that focuses on an improved editor experience, consistency, and being lightweight. It uses a new node type and plugin system instead of TypoScript, and makes extensions and features easy to extend. The documentation contributes to learning Neos, and install parties provide demo and support for using the new CMS.
Parsing swiftly-Cocoaheads-2015-02-12
This document discusses parsing and parsers. It introduces parsing as breaking a string into tokens through lexing and extracting meaning through parsing. It then defines a Parser type in Swift and provides some basic building blocks like Parser.result(), Parser.zero(), and Parser.item(). It shows how parsers can be combined using functions like bind() and satisfy() to parse characters, words, and make choices. Finally, it mentions some references on monadic parser combinators.
Introduction to JQuery
jQuery is a JavaScript library that makes it easier to write JavaScript code that runs on different browsers. It allows selecting DOM elements, traversing through them and manipulating them. jQuery simplifies tasks like handling events, animating elements, and making AJAX calls. Some key features include selecting elements by tag name, ID, or CSS class; traversing DOM elements; binding event handlers; animating elements with effects like show, hide, fade; and making asynchronous HTTP requests via AJAX.
Web весна 2013 лекция 6
This document describes the implementation of a blog application using the Django web framework. It defines models for categories and posts using Django's model layer. It includes views for listing, detail, and category pages. Templates render the content and extend a base template. URLs are mapped to views. Form and template tags are used to implement a contact page. The application uses Django's admin interface and ORM to manage the database content.
Scala on Your Phone
See how you can develop Android applications using the Scala programming language. Presented at Silicon Valley Code Camp 2009.
Web осень 2012 лекция 6
The document describes a blog application built with Django. It includes models for categories and posts with a many-to-one relationship. It defines views for listing posts, displaying individual posts and categories. Templates render the content and use template inheritance. Forms and email sending are implemented for contact. URLs are configured to map to the views. Tags extend template capabilities to include recent posts. The application uses Django components and patterns for building the blog functionality.
Type Systems & Props Design - Exploring PropTypes, TypeScript, Flow & Reason
This document discusses different approaches to adding types to React components to validate props, including PropTypes, TypeScript, Flow, and Reason. It provides examples of defining component prop types using interfaces, unions, enums, and variants. It also discusses design patterns for conditional rendering based on prop types, such as using discriminated unions and disjoint unions to define draft and published post types. Finally, it covers render props and querying data from GraphQL using variants to handle loading, error, and data states.
Modify the bouncing ball example demonstrated/tutorialoutlet
FOR MORE CLASSES VISIT
tutorialoutletdotcom
COIS 2240 Assignment#3 Question#1
Modify the bouncing ball example demonstrated in class to include a rectangle as shown in the
figure here: The width of the rectangle should be equal to radius*4, while the height should be equal to the
radius.
Recommended
TYPO3 User Group - Lausanne - 12 novembre 2013
TYPO3 Neos 1.0 is a new content management framework that focuses on an improved editor experience, consistency, and being lightweight. It uses a new node type and plugin system instead of TypoScript, and makes extensions and features easy to extend. The documentation contributes to learning Neos, and install parties provide demo and support for using the new CMS.
Parsing swiftly-Cocoaheads-2015-02-12
This document discusses parsing and parsers. It introduces parsing as breaking a string into tokens through lexing and extracting meaning through parsing. It then defines a Parser type in Swift and provides some basic building blocks like Parser.result(), Parser.zero(), and Parser.item(). It shows how parsers can be combined using functions like bind() and satisfy() to parse characters, words, and make choices. Finally, it mentions some references on monadic parser combinators.
Introduction to JQuery
jQuery is a JavaScript library that makes it easier to write JavaScript code that runs on different browsers. It allows selecting DOM elements, traversing through them and manipulating them. jQuery simplifies tasks like handling events, animating elements, and making AJAX calls. Some key features include selecting elements by tag name, ID, or CSS class; traversing DOM elements; binding event handlers; animating elements with effects like show, hide, fade; and making asynchronous HTTP requests via AJAX.
Web весна 2013 лекция 6
This document describes the implementation of a blog application using the Django web framework. It defines models for categories and posts using Django's model layer. It includes views for listing, detail, and category pages. Templates render the content and extend a base template. URLs are mapped to views. Form and template tags are used to implement a contact page. The application uses Django's admin interface and ORM to manage the database content.
Scala on Your Phone
See how you can develop Android applications using the Scala programming language. Presented at Silicon Valley Code Camp 2009.
Web осень 2012 лекция 6
The document describes a blog application built with Django. It includes models for categories and posts with a many-to-one relationship. It defines views for listing posts, displaying individual posts and categories. Templates render the content and use template inheritance. Forms and email sending are implemented for contact. URLs are configured to map to the views. Tags extend template capabilities to include recent posts. The application uses Django components and patterns for building the blog functionality.
Type Systems & Props Design - Exploring PropTypes, TypeScript, Flow & Reason
This document discusses different approaches to adding types to React components to validate props, including PropTypes, TypeScript, Flow, and Reason. It provides examples of defining component prop types using interfaces, unions, enums, and variants. It also discusses design patterns for conditional rendering based on prop types, such as using discriminated unions and disjoint unions to define draft and published post types. Finally, it covers render props and querying data from GraphQL using variants to handle loading, error, and data states.
Modify the bouncing ball example demonstrated/tutorialoutlet
FOR MORE CLASSES VISIT
tutorialoutletdotcom
COIS 2240 Assignment#3 Question#1
Modify the bouncing ball example demonstrated in class to include a rectangle as shown in the
figure here: The width of the rectangle should be equal to radius*4, while the height should be equal to the
radius.
01 list using array
The document describes a C program that implements a list ADT using an array. It includes functions for creating a list, inserting elements, deleting elements, searching for elements, and displaying the list. The main function uses a menu to allow the user to select an operation and call the appropriate function to perform that operation on the list.
Difference between mysql_fetch_array and mysql_fetch_assoc in PHP
The document discusses the differences between four PHP functions - mysql_fetch_row(), mysql_fetch_object(), mysql_fetch_assoc(), and mysql_fetch_array() - that are used to retrieve rows from MySQL result sets. mysql_fetch_row() returns a numeric array, mysql_fetch_object() returns an object, mysql_fetch_assoc() returns an associative array, and mysql_fetch_array() can return both associative and numeric arrays. Examples are provided showing how to access column values using each function.
jQuery Plugin
This was my presentation at Silicon Valley Code Camp 09. The material can be downloaded from : http://my/personal/rbiggs/Blog/default.aspx
Twitter sentiment analysis for cryptoassets
python code
Please email at: mamoon@quake.vc or mik279@nyu.edu for questions about how to make modifications.
primary code credit: @ZeroVariance twitter handle.
Web осень 2012 лекция 7
This document shows code for building a blog application in Django, including models, forms, views, templates, and administration. It defines models for posts and categories. It includes forms for contact, posting, and administration. It builds views for listing, detail, categories, and administration. Templates render the content and tags are used to include reusable content. The application uses generic class-based views and utilizes Django's administration interface.
Java script frame history
The document discusses different ways to refer to frames in JavaScript when they are not given names. It explains that unnamed frames can be referred to by their numeric index in the frames array, with the first frame being frames[0]. The document then provides an example using three frames without names, and calling functions between the frames by index. It also discusses the History object which contains the browser's navigation history, and methods like back() and forward() to programmatically change pages.
for this particular program how do i create the input innotepad 1st ?#include...
for this particular program how do i create the input innotepad 1st ?#include <iostream>
#include <fstream>
#include <iomanip>
#include <string>
using namespace std;
int main()
{
ifstream inFile;
ofstream outFile;
double currentSalary=0, updatedSalary, payIncrease=0;
string firstName;
string lastName;
inFile.open("Ch3_Ex6Data.txt");
outFile.open("Ch3_Ex6Output.txt");
cout<<fixed<<showpoint<<setprecision(2);
//First Employee
inFile>>lastName>>firstName
>>currentSalary>>payIncrease;
updatedSalary = currentSalary * (1+(payIncrease*0.01));
outFile<< firstName<< " "<< lastName<< ""<< updatedSalary<< endl;
//Second Employee
inFile>>lastName>>firstName>>currentSalary>>payIncrease;
updatedSalary = cur
rentSalary * (1+(payIncrease*0.01));
Practical TypeScript
This document discusses the benefits of using TypeScript, a superset of JavaScript that adds static type checking and compiler-checked syntax. It provides several examples of how TypeScript catches errors through type checking, such as passing arguments of the wrong type or missing required properties. It also notes that the TypeScript community has provided type declarations for thousands of JavaScript libraries to enable safer usage. While TypeScript adds types, code written in it is still valid JavaScript that can be migrated to over time without rewriting existing code.
Session1+2
1. PHP is a server-side scripting language that is commonly used for web development along with HTML and web servers like Apache.
2. PHP code is embedded within HTML code and interpreted by the web server before the page is sent to the browser.
3. Popular websites like Yahoo and Google were built using PHP because it allows developers to easily create dynamic and interactive web pages.
Reactive clean architecture
Talk on how to think when building Android apps using a reactive Clean Architecture. This talk was held at the Stockholm Android Meetup group April 17 2018 at Developers bay.
Testing Your Sproutcore Presentation
The document discusses testing Sproutcore applications. It recommends using acceptance/integration tests to ensure all objects work together from the user's perspective, and unit tests to ensure each object works individually and as expected. Examples are provided of testing a view through its API in isolation, and of an acceptance test that adds a todo item and verifies it is displayed.
Add row in asp.net Gridview on button click using C# and vb.net
In this article I am going to explain how to add a row in gridview to insert the record into database on add new button click in asp.net.
Constraints: A Developer's Secret Weapon | PostgreSQL Conference EU 2018 | Wi...
Of all my regrets while building database-backed applications, not fully embracing database constraints sooner is one of the bigger ones. For far too long, I treated the db as a little more than a dumb key-value store with joins.
Strong constraints turn your database into the last line of defense against bad data. Applications change several orders of magnitude more often than db schemas, and each change is a chance for corruption.
Constraints in Postgres come in many forms, from literally using the CONSTRAINT keyword to a large choice of datatypes. You'll come away from this talk understanding the pros and cons of type of constraint, and be ready to transform your application into a safer and more resilient system.
Constraints: A Developer's Secret Weapon | pgDay Paris 2018 | Will Leinweber
1) The document discusses various types of constraints that can be applied in a PostgreSQL database to enforce data integrity, including NOT NULL, unique indexes, foreign keys, check constraints, and exclusion constraints.
2) It emphasizes that constraints help prevent bugs by catching errors in the application code before they can corrupt the database.
3) Different constraint types like datatypes, enums, ranges, and domains allow enforcing assumptions about what values should or should not be stored for different columns.
5. CodeIgniter copy1
The document describes how to create a multi-step form submission process in CodeIgniter. It shows creating a FormsController class with index and copy1 methods to load different views. The index method loads an initial form view, while copy1 processes form submission and loads a second view passing submitted data. Code for the form views and routes file is also provided to pass data between steps using the controller methods.
Introduction to JQuery
jQuery is a JavaScript library that makes it easier to select elements, handle events, perform animations, and develop Ajax applications. It works by separating behavior from HTML structure through selectors, events, and methods. The $ function is an alias for jQuery and is used to select elements and execute functions on page load or other events. jQuery can be included in a page and used to simplify DOM manipulation, event handling, animation, and AJAX interactions.
Session6
The document discusses various ways to submit HTML forms using PHP. It explains how to create basic forms with input fields like text, password, submit buttons and how the form data is accessed in the PHP file using $_GET and $_POST superglobals. It also discusses forms with select, checkbox, file inputs and how to validate and process the submitted data in PHP. Examples are given to illustrate form submission with different input types and form validation.
Python Code Camp for Professionals 4/4
Python Code Camp (Professionals) is a whole day workshop that aims to enable professionals to learn Python Basics and Django.
Visit: http://devcon.ph/events/python-code-camp-professionals-2016
Annotation processor and compiler plugin
This document discusses using annotation processors and compiler plugins to generate code. It provides examples of generating code to avoid boilerplate and duplication using annotation processors. It then outlines the basic steps to implement an annotation processor which includes implementing an interface, creating a provider configuration file, and compiling with the annotation processor on the classpath. Similarly, the basic steps for a compiler plugin are discussed, which involves implementing a plugin interface, creating a provider configuration file, and compiling with the plugin specified.
SummaryHW6 Account ManagementIn HW4, you kept track of multiple.pdf
Summary
HW6: Account Management
In HW4, you kept track of multiple usernames and its associated password using arrays.
However, usernames and passwords are typically part of a “User” object which in turn may be
part of an “Account” object. Accounts also typically require a certain level of security beyond
the typical encryption mechanisms. This assignment goes deeper into the concept of OOP as you
create objects that requires proper rules and scope for correct usage.
Aside: As with Item objects from HW5, Account and User data is typically stored in databases.
Skills Expected
? All the skills from previous Assignment(s)
? Accessors/Mutators
? Overriding methods: equals and toString
Assignment Description
You will write three Class objects and a Driver for each class (i.e. submit six .java files):
? User
? Account
? AccountList
Note: All properties MUST be private
Submission Requirement: The Driver Class
? Each Class designed MUST be submitted with a corresponding “Driver” Class
? The Driver Class should have a main() that demonstrates, at minimum
o Calling the appropriate constructor to create the appropriate instance
o Everyproperty(instancevariables)canbesetandgetcorrectly(whereallowed) ? Every public
method can be called successfully (and return the correct result)
Class Design: User
The User class is intended to be an abstract and simplified representation of a user
Class Properties
? First Name (String)
? Last Name (String)
? Username (String)
? Password (String)
Class Invariant
? First and Last Name must not be empty
? Username must be at least four characters long
? Password must be at least four characters long (is this a good invariant?)
Class Components
? A constructor that sets the initial user data (first name, last name, username, password)
? A getter/setter for each properties set out above
? A toString() method
? An equals() method
Class Design: Account
The Account class is intended to be an abstract and simplified representation of an account
Class Properties
? User (User)
? Balance (double) – represents how much money the user has in the account
Class Invariant
? Must be a valid account
? Balance must not be negative
Class Components
? A constructor that sets the initial User instance and balance amount
? A Getter but not a Setter for the each properties set out above (why?)
? A public method to add to the balance
? A public method to withdraw from the balance
? A toString() method
? An equals() method
Class Design: AccountList
The AccountList class is intended to be an abstract and simplified representation of a list of
accounts.
Class Properties
? Accounts (an array of Account objects – or ArrayList) o No getters or setters* (do you know
why?)
Class Invariant
? Can’t have multiple accounts with the same username
Class Components
? A public method that adds new accounts
? A public (boolean) method that determines whether an account with a given username exists in
the list
Grading Criteria
? User class object
o [2 points] Impl.
08 Queries
The document discusses various options for querying data with Hibernate including:
1) The Hibernate Query Language (HQL) and Criteria API for defining type-safe queries against objects rather than tables.
2) Techniques for executing queries such as pagination, scrolling results, and binding parameters.
3) Advanced query features like joining associations, aggregation, grouping, and report queries for projecting specific fields.
Mentor Your Indexes
We all know how to define database indexes, but which indexes to define remains a mysterious art for most software developers. This talk will use general principles and specific scenarios to give you practical, step-by-step knowledge to turn a performance bottleneck into an epic win!
More Related Content
What's hot
01 list using array
The document describes a C program that implements a list ADT using an array. It includes functions for creating a list, inserting elements, deleting elements, searching for elements, and displaying the list. The main function uses a menu to allow the user to select an operation and call the appropriate function to perform that operation on the list.
Difference between mysql_fetch_array and mysql_fetch_assoc in PHP
The document discusses the differences between four PHP functions - mysql_fetch_row(), mysql_fetch_object(), mysql_fetch_assoc(), and mysql_fetch_array() - that are used to retrieve rows from MySQL result sets. mysql_fetch_row() returns a numeric array, mysql_fetch_object() returns an object, mysql_fetch_assoc() returns an associative array, and mysql_fetch_array() can return both associative and numeric arrays. Examples are provided showing how to access column values using each function.
jQuery Plugin
This was my presentation at Silicon Valley Code Camp 09. The material can be downloaded from : http://my/personal/rbiggs/Blog/default.aspx
Twitter sentiment analysis for cryptoassets
python code
Please email at: mamoon@quake.vc or mik279@nyu.edu for questions about how to make modifications.
primary code credit: @ZeroVariance twitter handle.
Web осень 2012 лекция 7
This document shows code for building a blog application in Django, including models, forms, views, templates, and administration. It defines models for posts and categories. It includes forms for contact, posting, and administration. It builds views for listing, detail, categories, and administration. Templates render the content and tags are used to include reusable content. The application uses generic class-based views and utilizes Django's administration interface.
Java script frame history
The document discusses different ways to refer to frames in JavaScript when they are not given names. It explains that unnamed frames can be referred to by their numeric index in the frames array, with the first frame being frames[0]. The document then provides an example using three frames without names, and calling functions between the frames by index. It also discusses the History object which contains the browser's navigation history, and methods like back() and forward() to programmatically change pages.
for this particular program how do i create the input innotepad 1st ?#include...
for this particular program how do i create the input innotepad 1st ?#include <iostream>
#include <fstream>
#include <iomanip>
#include <string>
using namespace std;
int main()
{
ifstream inFile;
ofstream outFile;
double currentSalary=0, updatedSalary, payIncrease=0;
string firstName;
string lastName;
inFile.open("Ch3_Ex6Data.txt");
outFile.open("Ch3_Ex6Output.txt");
cout<<fixed<<showpoint<<setprecision(2);
//First Employee
inFile>>lastName>>firstName
>>currentSalary>>payIncrease;
updatedSalary = currentSalary * (1+(payIncrease*0.01));
outFile<< firstName<< " "<< lastName<< ""<< updatedSalary<< endl;
//Second Employee
inFile>>lastName>>firstName>>currentSalary>>payIncrease;
updatedSalary = cur
rentSalary * (1+(payIncrease*0.01));
Practical TypeScript
This document discusses the benefits of using TypeScript, a superset of JavaScript that adds static type checking and compiler-checked syntax. It provides several examples of how TypeScript catches errors through type checking, such as passing arguments of the wrong type or missing required properties. It also notes that the TypeScript community has provided type declarations for thousands of JavaScript libraries to enable safer usage. While TypeScript adds types, code written in it is still valid JavaScript that can be migrated to over time without rewriting existing code.
Session1+2
1. PHP is a server-side scripting language that is commonly used for web development along with HTML and web servers like Apache.
2. PHP code is embedded within HTML code and interpreted by the web server before the page is sent to the browser.
3. Popular websites like Yahoo and Google were built using PHP because it allows developers to easily create dynamic and interactive web pages.
Reactive clean architecture
Talk on how to think when building Android apps using a reactive Clean Architecture. This talk was held at the Stockholm Android Meetup group April 17 2018 at Developers bay.
Testing Your Sproutcore Presentation
The document discusses testing Sproutcore applications. It recommends using acceptance/integration tests to ensure all objects work together from the user's perspective, and unit tests to ensure each object works individually and as expected. Examples are provided of testing a view through its API in isolation, and of an acceptance test that adds a todo item and verifies it is displayed.
Add row in asp.net Gridview on button click using C# and vb.net
In this article I am going to explain how to add a row in gridview to insert the record into database on add new button click in asp.net.
Constraints: A Developer's Secret Weapon | PostgreSQL Conference EU 2018 | Wi...
Of all my regrets while building database-backed applications, not fully embracing database constraints sooner is one of the bigger ones. For far too long, I treated the db as a little more than a dumb key-value store with joins.
Strong constraints turn your database into the last line of defense against bad data. Applications change several orders of magnitude more often than db schemas, and each change is a chance for corruption.
Constraints in Postgres come in many forms, from literally using the CONSTRAINT keyword to a large choice of datatypes. You'll come away from this talk understanding the pros and cons of type of constraint, and be ready to transform your application into a safer and more resilient system.
Constraints: A Developer's Secret Weapon | pgDay Paris 2018 | Will Leinweber
1) The document discusses various types of constraints that can be applied in a PostgreSQL database to enforce data integrity, including NOT NULL, unique indexes, foreign keys, check constraints, and exclusion constraints.
2) It emphasizes that constraints help prevent bugs by catching errors in the application code before they can corrupt the database.
3) Different constraint types like datatypes, enums, ranges, and domains allow enforcing assumptions about what values should or should not be stored for different columns.
5. CodeIgniter copy1
The document describes how to create a multi-step form submission process in CodeIgniter. It shows creating a FormsController class with index and copy1 methods to load different views. The index method loads an initial form view, while copy1 processes form submission and loads a second view passing submitted data. Code for the form views and routes file is also provided to pass data between steps using the controller methods.
Introduction to JQuery
jQuery is a JavaScript library that makes it easier to select elements, handle events, perform animations, and develop Ajax applications. It works by separating behavior from HTML structure through selectors, events, and methods. The $ function is an alias for jQuery and is used to select elements and execute functions on page load or other events. jQuery can be included in a page and used to simplify DOM manipulation, event handling, animation, and AJAX interactions.
Session6
The document discusses various ways to submit HTML forms using PHP. It explains how to create basic forms with input fields like text, password, submit buttons and how the form data is accessed in the PHP file using $_GET and $_POST superglobals. It also discusses forms with select, checkbox, file inputs and how to validate and process the submitted data in PHP. Examples are given to illustrate form submission with different input types and form validation.
What's hot (17)
Difference between mysql_fetch_array and mysql_fetch_assoc in PHP
Difference between mysql_fetch_array and mysql_fetch_assoc in PHP
for this particular program how do i create the input innotepad 1st ?#include...
for this particular program how do i create the input innotepad 1st ?#include...
Add row in asp.net Gridview on button click using C# and vb.net
Add row in asp.net Gridview on button click using C# and vb.net
Constraints: A Developer's Secret Weapon | PostgreSQL Conference EU 2018 | Wi...
Constraints: A Developer's Secret Weapon | PostgreSQL Conference EU 2018 | Wi...
Constraints: A Developer's Secret Weapon | pgDay Paris 2018 | Will Leinweber
Constraints: A Developer's Secret Weapon | pgDay Paris 2018 | Will Leinweber
Similar to Postgre sql index
Python Code Camp for Professionals 4/4
Python Code Camp (Professionals) is a whole day workshop that aims to enable professionals to learn Python Basics and Django.
Visit: http://devcon.ph/events/python-code-camp-professionals-2016
Annotation processor and compiler plugin
This document discusses using annotation processors and compiler plugins to generate code. It provides examples of generating code to avoid boilerplate and duplication using annotation processors. It then outlines the basic steps to implement an annotation processor which includes implementing an interface, creating a provider configuration file, and compiling with the annotation processor on the classpath. Similarly, the basic steps for a compiler plugin are discussed, which involves implementing a plugin interface, creating a provider configuration file, and compiling with the plugin specified.
SummaryHW6 Account ManagementIn HW4, you kept track of multiple.pdf
Summary
HW6: Account Management
In HW4, you kept track of multiple usernames and its associated password using arrays.
However, usernames and passwords are typically part of a “User” object which in turn may be
part of an “Account” object. Accounts also typically require a certain level of security beyond
the typical encryption mechanisms. This assignment goes deeper into the concept of OOP as you
create objects that requires proper rules and scope for correct usage.
Aside: As with Item objects from HW5, Account and User data is typically stored in databases.
Skills Expected
? All the skills from previous Assignment(s)
? Accessors/Mutators
? Overriding methods: equals and toString
Assignment Description
You will write three Class objects and a Driver for each class (i.e. submit six .java files):
? User
? Account
? AccountList
Note: All properties MUST be private
Submission Requirement: The Driver Class
? Each Class designed MUST be submitted with a corresponding “Driver” Class
? The Driver Class should have a main() that demonstrates, at minimum
o Calling the appropriate constructor to create the appropriate instance
o Everyproperty(instancevariables)canbesetandgetcorrectly(whereallowed) ? Every public
method can be called successfully (and return the correct result)
Class Design: User
The User class is intended to be an abstract and simplified representation of a user
Class Properties
? First Name (String)
? Last Name (String)
? Username (String)
? Password (String)
Class Invariant
? First and Last Name must not be empty
? Username must be at least four characters long
? Password must be at least four characters long (is this a good invariant?)
Class Components
? A constructor that sets the initial user data (first name, last name, username, password)
? A getter/setter for each properties set out above
? A toString() method
? An equals() method
Class Design: Account
The Account class is intended to be an abstract and simplified representation of an account
Class Properties
? User (User)
? Balance (double) – represents how much money the user has in the account
Class Invariant
? Must be a valid account
? Balance must not be negative
Class Components
? A constructor that sets the initial User instance and balance amount
? A Getter but not a Setter for the each properties set out above (why?)
? A public method to add to the balance
? A public method to withdraw from the balance
? A toString() method
? An equals() method
Class Design: AccountList
The AccountList class is intended to be an abstract and simplified representation of a list of
accounts.
Class Properties
? Accounts (an array of Account objects – or ArrayList) o No getters or setters* (do you know
why?)
Class Invariant
? Can’t have multiple accounts with the same username
Class Components
? A public method that adds new accounts
? A public (boolean) method that determines whether an account with a given username exists in
the list
Grading Criteria
? User class object
o [2 points] Impl.
08 Queries
The document discusses various options for querying data with Hibernate including:
1) The Hibernate Query Language (HQL) and Criteria API for defining type-safe queries against objects rather than tables.
2) Techniques for executing queries such as pagination, scrolling results, and binding parameters.
3) Advanced query features like joining associations, aggregation, grouping, and report queries for projecting specific fields.
Mentor Your Indexes
We all know how to define database indexes, but which indexes to define remains a mysterious art for most software developers. This talk will use general principles and specific scenarios to give you practical, step-by-step knowledge to turn a performance bottleneck into an epic win!
PostThis
This document provides an overview of LINQ (Language Integrated Query) and its capabilities. It introduces LINQ to Objects, LINQ to SQL, and LINQ to XML. LINQ allows developers to query data structures using SQL-like syntax directly in code and integrates with various .NET languages and data sources.
Linq intro
This document provides an overview and introduction to Language Integrated Query (LINQ) in 3 sentences or less:
LINQ allows for a common syntax to query different types of data by enabling queries across objects, XML, SQL databases and other data sources using lambda expressions, extension methods, and other new C# 3.0 features. The document outlines the LINQ architecture and demonstrates LINQ to Objects, LINQ to SQL, and LINQ to XML, showing how LINQ provides a consistent query experience across .NET data sources. Key LINQ capabilities include IntelliSense support, deferred query execution, and strong typing checked by the compiler.
Cassandra London - 2.2 and 3.0
This document discusses Cassandra features in versions 2.2 and 3.0, including JSON support, user defined functions, aggregates, and a new storage engine. It provides examples of using JSON to insert and query data, creating user defined functions and aggregates, and discusses materialized views in Cassandra. It also notes additional features like compressed commit logs and new data types.
SQL -PHP Tutorial
The document provides an overview of SQL and PHP for working with databases. It discusses SQL concepts like creating and modifying tables, inserting and selecting data. It then covers connecting to databases from PHP, executing SQL queries from PHP, and processing HTML forms to insert data into databases using PHP. Key topics include SQL syntax for common operations, the basic PHP code for connecting to MySQL, running queries, and retrieving result rows, and using the $_POST array to access form data submitted to a PHP processing page.
MySQLConf2009: Taking ActiveRecord to the Next Level
Taking ActiveRecord to the next level contains tips and tricks for using ActiveRecord with enterprise Ruby on Rails Applications. Learn how to import and export multiple records, read off replicas, handle deadlocks, and use temporary tables. Use MySQL functionality such as adding index hints, on duplicate key update, insert select and more.
Java day 2016.pptx
The document discusses code generation using Javac plugins in Java. It provides motivation for code generation by showing examples of boilerplate code and code duplication that can be avoided. It then outlines two approaches for code generation - annotation processing and Javac plugins. For Javac plugins, it describes how to implement the Plugin interface and create a provider configuration file to integrate the plugin with the Java compiler. Finally, it mentions there is a demo of a Javac plugin.
How to Use JSON in MySQL Wrong
The document discusses using JSON in MySQL. It begins by introducing the speaker and outlining topics to be covered, including why JSON is useful, loading JSON data into MySQL, performance considerations when querying JSON data, using generated columns with JSON, and searching multi-valued attributes in JSON. The document then dives into examples demonstrating loading sample data from XML to JSON in MySQL, issues that can arise, and techniques for optimizing JSON queries using generated columns and indexes.
Postgres rules
The document discusses PostgreSQL rules. It provides examples of creating rules to modify the behavior of INSERT, UPDATE, and SELECT statements. This includes using rules to log changes to a table to an audit table, and to upsert counts to increment a count column when a row already exists.
Entity Framework Core: tips and tricks
Доклад про Entity Framework Core, типичные ошибки при работе с этой ORM, оптимизацию запросов и мониторинг.
2 Dundee - Cassandra-3
Cassandra 2.2 and 3.0 introduced several new features including support for JSON, user defined functions and aggregates, role-based authentication, and a new storage engine. Cassandra 3.0 also introduced materialized views, which allow data to be pre-computed and stored for faster queries, reducing the need for applications to manually denormalize data. The document provides examples of using new features like JSON, user defined types and functions, aggregates, and discusses how materialized views can improve performance over secondary indexes by pre-computing and storing duplicate data within Cassandra.
Method and decorator
From new version Odoo 8.0 onwards we are using new api in python coding. But most of the people are unaware of its exact usage. They will use new API in unwanted places. Also, new API provides a lot of functionalities and simple methods to achieve validation and triggering the function call. So now we can spend some time for a clear discussion about new API in odoo.
Embedded Typesafe Domain Specific Languages for Java
The document discusses embedded domain-specific languages (DSLs) for Java and provides two case studies:
1) Building SQL queries using a typesafe DSL that avoids errors and allows type inference.
2) Modifying Java bytecode using the ASM library to define a DSL for bytecode engineering.
Refactor legacy code through pure functions
Existing methods for refactoring legacy code are either unsafe, or slow and require a lot of rare skills. I'm proposing a new method composed of three steps: refactor to pure functions, write tests for the pure functions, and refactor the pure functions to classes or something else. I believe that with a few mechanical steps a trained developer can safely refactor legacy code faster using this method.
Java: Class Design Examples
Sub: Java
Topic: Class Design Examples
Slide number: 3
Presented by: Mahbubul Islam (MMI)
Lecturer, Dept. of CSE
University of Rajshahi
Javascript
This document provides an introduction to JavaScript including:
- JavaScript is the most popular programming language for adding interactivity to web pages.
- It is embedded directly into HTML and is case-sensitive.
- JavaScript can change HTML content, attributes, styles, validate data, and display pop-ups.
- The <script> tag is used to insert JavaScript into HTML. Scripts can go in the head or body.
- External JavaScript files allow code reuse across pages and improve performance.
- JavaScript outputs can be written to alerts, the page, elements, and the console.
- Variables, data types, operators, functions, conditional statements, loops, arrays and events are also introduced.
Similar to Postgre sql index (20)
SummaryHW6 Account ManagementIn HW4, you kept track of multiple.pdf
SummaryHW6 Account ManagementIn HW4, you kept track of multiple.pdf
MySQLConf2009: Taking ActiveRecord to the Next Level
MySQLConf2009: Taking ActiveRecord to the Next Level
Embedded Typesafe Domain Specific Languages for Java
Embedded Typesafe Domain Specific Languages for Java
Recently uploaded
Intelligence supported media monitoring in veterinary medicine
Media monitoring in veterinary medicien
一比一原版(UMN文凭证书)明尼苏达大学毕业证如何办理
毕业原版【微信:176555708】【(UMN毕业证书)明尼苏达大学毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信176555708】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信176555708】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
一比一原版(Unimelb毕业证书)墨尔本大学毕业证如何办理
原版制作【微信:41543339】【(Unimelb毕业证书)墨尔本大学毕业证】【微信:41543339】《成绩单、外壳、雅思、offer、留信学历认证（永久存档/真实可查）》采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同进口机器一比一制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信41543339】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信41543339】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
Open Source Contributions to Postgres: The Basics POSETTE 2024
Postgres is the most advanced open-source database in the world and it's supported by a community, not a single company. So how does this work? How does code actually get into Postgres? I recently had a patch submitted and committed and I want to share what I learned in that process. I’ll give you an overview of Postgres versions and how the underlying project codebase functions. I’ll also show you the process for submitting a patch and getting that tested and committed.
End-to-end pipeline agility - Berlin Buzzwords 2024
We describe how we achieve high change agility in data engineering by eliminating the fear of breaking downstream data pipelines through end-to-end pipeline testing, and by using schema metaprogramming to safely eliminate boilerplate involved in changes that affect whole pipelines.
A quick poll on agility in changing pipelines from end to end indicated a huge span in capabilities. For the question "How long time does it take for all downstream pipelines to be adapted to an upstream change," the median response was 6 months, but some respondents could do it in less than a day. When quantitative data engineering differences between the best and worst are measured, the span is often 100x-1000x, sometimes even more.
A long time ago, we suffered at Spotify from fear of changing pipelines due to not knowing what the impact might be downstream. We made plans for a technical solution to test pipelines end-to-end to mitigate that fear, but the effort failed for cultural reasons. We eventually solved this challenge, but in a different context. In this presentation we will describe how we test full pipelines effectively by manipulating workflow orchestration, which enables us to make changes in pipelines without fear of breaking downstream.
Making schema changes that affect many jobs also involves a lot of toil and boilerplate. Using schema-on-read mitigates some of it, but has drawbacks since it makes it more difficult to detect errors early. We will describe how we have rejected this tradeoff by applying schema metaprogramming, eliminating boilerplate but keeping the protection of static typing, thereby further improving agility to quickly modify data pipelines without fear.
原版一比一利兹贝克特大学毕业证(LeedsBeckett毕业证书)如何办理
原版制作【微信:41543339】【利兹贝克特大学毕业证(LeedsBeckett毕业证书)】【微信:41543339】《成绩单、外壳、雅思、offer、真实留信官方学历认证（永久存档/真实可查）》采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路）我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信41543339】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信41543339】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
一比一原版(UCSB文凭证书)圣芭芭拉分校毕业证如何办理
毕业原版【微信:176555708】【(UCSB毕业证书)圣芭芭拉分校毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信176555708】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信176555708】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
06-12-2024-BudapestDataForum-BuildingReal-timePipelineswithFLaNK AIM
06-12-2024-BudapestDataForum-BuildingReal-timePipelineswithFLaNK AIM
by
Timothy Spann
Principal Developer Advocate
https://budapestdata.hu/2024/en/
https://budapestml.hu/2024/en/
tim.spann@zilliz.com
https://www.linkedin.com/in/timothyspann/
https://x.com/paasdev
https://github.com/tspannhw
https://www.youtube.com/@flank-stack
milvus
vector database
gen ai
generative ai
deep learning
machine learning
apache nifi
apache pulsar
apache kafka
apache flink
Experts live - Improving user adoption with AI
Bekijk de slides van onze sessie Enhancing Modern Workplace Efficiency op Experts Live 2024.
The Building Blocks of QuestDB, a Time Series Database
Talk Delivered at Valencia Codes Meetup 2024-06.
Traditionally, databases have treated timestamps just as another data type. However, when performing real-time analytics, timestamps should be first class citizens and we need rich time semantics to get the most out of our data. We also need to deal with ever growing datasets while keeping performant, which is as fun as it sounds.
It is no wonder time-series databases are now more popular than ever before. Join me in this session to learn about the internal architecture and building blocks of QuestDB, an open source time-series database designed for speed. We will also review a history of some of the changes we have gone over the past two years to deal with late and unordered data, non-blocking writes, read-replicas, or faster batch ingestion.
在线办理(英国UCA毕业证书)创意艺术大学毕业证在读证明一模一样
学校原件一模一样【微信：741003700 】《(英国UCA毕业证书)创意艺术大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理
毕业原版【微信:176555708】【(UCSF毕业证书)旧金山分校毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信176555708】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信176555708】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
Population Growth in Bataan: The effects of population growth around rural pl...
A population analysis specific to Bataan.
The Ipsos - AI - Monitor 2024 Report.pdf
According to Ipsos AI Monitor's 2024 report, 65% Indians said that products and services using AI have profoundly changed their daily life in the past 3-5 years.
Learn SQL from basic queries to Advance queries
Dive into the world of data analysis with our comprehensive guide on mastering SQL! This presentation offers a practical approach to learning SQL, focusing on real-world applications and hands-on practice. Whether you're a beginner or looking to sharpen your skills, this guide provides the tools you need to extract, analyze, and interpret data effectively.
Key Highlights:
Foundations of SQL: Understand the basics of SQL, including data retrieval, filtering, and aggregation.
Advanced Queries: Learn to craft complex queries to uncover deep insights from your data.
Data Trends and Patterns: Discover how to identify and interpret trends and patterns in your datasets.
Practical Examples: Follow step-by-step examples to apply SQL techniques in real-world scenarios.
Actionable Insights: Gain the skills to derive actionable insights that drive informed decision-making.
Join us on this journey to enhance your data analysis capabilities and unlock the full potential of SQL. Perfect for data enthusiasts, analysts, and anyone eager to harness the power of data!
#DataAnalysis #SQL #LearningSQL #DataInsights #DataScience #Analytics
University of New South Wales degree offer diploma Transcript
澳洲UNSW毕业证书制作新南威尔士大学假文凭定制Q微168899991做UNSW留信网教留服认证海牙认证改UNSW成绩单GPA做UNSW假学位证假文凭高仿毕业证申请新南威尔士大学University of New South Wales degree offer diploma Transcript
Predictably Improve Your B2B Tech Company's Performance by Leveraging Data
Harness the power of AI-backed reports, benchmarking and data analysis to predict trends and detect anomalies in your marketing efforts.
Peter Caputa, CEO at Databox, reveals how you can discover the strategies and tools to increase your growth rate (and margins!).
From metrics to track to data habits to pick up, enhance your reporting for powerful insights to improve your B2B tech company's marketing.
- - -
This is the webinar recording from the June 2024 HubSpot User Group (HUG) for B2B Technology USA.
Watch the video recording at https://youtu.be/5vjwGfPN9lw
Sign up for future HUG events at https://events.hubspot.com/b2b-technology-usa/
Recently uploaded (20)
Intelligence supported media monitoring in veterinary medicine
Intelligence supported media monitoring in veterinary medicine
A presentation that explain the Power BI Licensing
A presentation that explain the Power BI Licensing
Open Source Contributions to Postgres: The Basics POSETTE 2024
Open Source Contributions to Postgres: The Basics POSETTE 2024
End-to-end pipeline agility - Berlin Buzzwords 2024
End-to-end pipeline agility - Berlin Buzzwords 2024
06-12-2024-BudapestDataForum-BuildingReal-timePipelineswithFLaNK AIM
06-12-2024-BudapestDataForum-BuildingReal-timePipelineswithFLaNK AIM
Challenges of Nation Building-1.pptx with more important
Challenges of Nation Building-1.pptx with more important
The Building Blocks of QuestDB, a Time Series Database
The Building Blocks of QuestDB, a Time Series Database
Population Growth in Bataan: The effects of population growth around rural pl...
Population Growth in Bataan: The effects of population growth around rural pl...
University of New South Wales degree offer diploma Transcript
University of New South Wales degree offer diploma Transcript
Predictably Improve Your B2B Tech Company's Performance by Leveraging Data
Predictably Improve Your B2B Tech Company's Performance by Leveraging Data
Postgre sql index
- 1. PostgreSQL Index create table staging.account(account_id serial primary key,name text, dob date); create table staging.blog (blog_id serial primary key, account_id integer not null references staging.account(account_id),title text); create table staging.post (post_id serial primary key, blog_id integer not null references staging.blog(blog_id), account_id integer not null references staging.account(account_id),visible boolean default false, blog_test text);
- 2. Some simple query we perform to check • See all my blog post • How many post a user create • See all current blog • How may blog a user create • See all current post of a blog for time period
- 3. Data(using python faker lib) pip install Faker A simple script to generate fake names. Use this script and generate fake name for account. Here we are generating 100 account name and 1000 blog title and from faker import Faker fake = Faker() for x in range(100): print (fake.name()) # for generate random blog title For x in range(1000): select random() * 99 + 1; # for random number range from 1 to 100 print (fake.slug())
- 4. Let explain and analyse query explain analyse select * from staging.post where blog_id = 4334; Seq Scan on post (cost=0.00..441.51 rows=7 width=364) (actual time=0.354..1.568 rows=7 loops=1) Filter: (blog_id = 4334) Rows Removed by Filter: 7085 Planning Time: 0.084 ms Execution Time: 1.590 ms Bitmap Heap Scan on post (cost=4.34..29.47 rows=7 width=364) (actual time=0.035..0.045 rows=7 loops=1) Recheck Cond: (blog_id = 4334) Heap Blocks: exact=7 -> Bitmap Index Scan on post_blog_id_idx (cost=0.00..4.33 rows=7 width=0) (actual time=0.028..0.028 rows=7 loops=1) Index Cond: (blog_id = 4334) Planning Time: 0.360 ms Execution Time: 0.078 ms After creating index on post table.