PL/SQL is Oracle's procedural language extension to SQL that allows users to use SQL statements to manipulate Oracle data and use control flow statements to process the data. PL/SQL code can be executed on the Oracle server or Oracle client. The code is made up of a declare, executable, and exception handling section. Variables, constants, cursors and other objects are declared in the declare section. Code to manipulate the declared objects is written in the executable section. Exception handling code is written in the exception handling section.
PL/SQL is a combination of SQL and procedural languages that enhances SQL's capabilities. It allows processing of SQL statements as a block. A PL/SQL block consists of optional declaration, mandatory execution, and optional exception sections. Variables, constants, records can be declared in the declaration section and used in the execution section. The execution section contains the main program logic. Exceptions are handled in the exception section. PL/SQL supports programming constructs like conditional statements and loops.
It consists of important different concepts related to PL/SQL that are covered like the Basic structure of PL/SQL block, Variables and Constants in PL/SQL, Control Structures i.e., Conditional, Iterative, and Sequential Control, Procedure and Function, Cursors and its Types, Applications of implicit and explicit cursors, Triggers and its Types and Exception Handling.
Need for PL/SQL,Benefits of Using PL/SQL,PL/SQL Block Types and Constructs,PL/SQL Block Structure,Operators and SQL Functions in PL/SQL,Variables,Nested Blocks.
This chapter on PL/SQL programming introduces PL/SQL language fundamentals and basics with brief knowledge about its evolution and advantages.Practitioners Guide contains examples on the PL/SQL concepts explained in the slides.
This document discusses PL/SQL transactions and cursors. It defines a transaction as a series of related SQL statements that are treated as a logical unit by Oracle. Transactions are committed or rolled back. Cursors allow processing of multiple rows of data from a table. There are implicit cursors used by Oracle internally and explicit cursors that are declared and opened in a PL/SQL block to process data row by row. The document provides examples of using transactions with commit, rollback, and savepoints as well as examples of using implicit and explicit cursors.
This document provides an introduction to PL/SQL, including:
- What PL/SQL is and advantages over SQL such as programming capabilities and error handling
- Generic structure of a PL/SQL block with declare, begin, exception sections
- PL/SQL execution environment and how SQL statements are passed to Oracle engine
- Data types in PL/SQL including numbers, characters, dates, collections and LOB types
- Control structures like conditional (IF/THEN) and iterative (LOOP) statements
PL/SQL is a combination of SQL and procedural languages that enhances SQL's capabilities. It allows processing of SQL statements as a block. A PL/SQL block consists of optional declaration, mandatory execution, and optional exception sections. Variables, constants, records can be declared in the declaration section and used in the execution section. The execution section contains the main program logic. Exceptions are handled in the exception section. PL/SQL supports programming constructs like conditional statements and loops.
It consists of important different concepts related to PL/SQL that are covered like the Basic structure of PL/SQL block, Variables and Constants in PL/SQL, Control Structures i.e., Conditional, Iterative, and Sequential Control, Procedure and Function, Cursors and its Types, Applications of implicit and explicit cursors, Triggers and its Types and Exception Handling.
Need for PL/SQL,Benefits of Using PL/SQL,PL/SQL Block Types and Constructs,PL/SQL Block Structure,Operators and SQL Functions in PL/SQL,Variables,Nested Blocks.
This chapter on PL/SQL programming introduces PL/SQL language fundamentals and basics with brief knowledge about its evolution and advantages.Practitioners Guide contains examples on the PL/SQL concepts explained in the slides.
This document discusses PL/SQL transactions and cursors. It defines a transaction as a series of related SQL statements that are treated as a logical unit by Oracle. Transactions are committed or rolled back. Cursors allow processing of multiple rows of data from a table. There are implicit cursors used by Oracle internally and explicit cursors that are declared and opened in a PL/SQL block to process data row by row. The document provides examples of using transactions with commit, rollback, and savepoints as well as examples of using implicit and explicit cursors.
This document provides an introduction to PL/SQL, including:
- What PL/SQL is and advantages over SQL such as programming capabilities and error handling
- Generic structure of a PL/SQL block with declare, begin, exception sections
- PL/SQL execution environment and how SQL statements are passed to Oracle engine
- Data types in PL/SQL including numbers, characters, dates, collections and LOB types
- Control structures like conditional (IF/THEN) and iterative (LOOP) statements
PL/SQL is a procedural language extension for SQL and the Oracle relational database. It allows developers to perform transactions in an Oracle database, define and control cursors, handle exceptions, and provide a host language for SQL. PL/SQL code is organized into logical blocks with optional declaration, mandatory executable, and optional exception handling sections. It provides benefits like improved performance, portability, and integration with SQL.
PL/SQL is a programming language that combines the SQL operations of querying and manipulating data in an Oracle database with the procedural language constructs of variables, conditions, and loops. PL/SQL can be used for database-side programming as well as client-side application development. It provides advantages like better performance, portability, higher productivity, and integration with Oracle. PL/SQL supports various data types, control structures, exception handling, and object-oriented programming features. Cursors allow processing of multiple rows returned from a SQL statement and can be static, dynamic, or reference types. Procedures and functions are reusable program units that allow passing parameters and returning values.
This document discusses advanced PL/SQL capabilities that can improve application performance and add new functionality to databases. It focuses on bulk binding, which allows fetching and inserting multiple rows in a single operation instead of one by one. This reduces processing overhead. It also covers SQL and PL/SQL data types, and how collections like nested tables and varrays allow treating local PL/SQL variables like database tables using SQL operations.
The document discusses PL/SQL security and transactions in Oracle. It defines single and multiple query transactions and explains how Oracle implements concurrency control through locking at the row, page and table levels using shared and exclusive locks. It also discusses implicit locking as Oracle's default strategy and how explicit locking can override this. The document provides examples of using SELECT...FOR UPDATE and LOCK TABLE statements for explicit locking.
The document introduces the Scala programming language. It discusses Scala's history and motivation, as well as its key features. Scala was created by Martin Odersky and combines object-oriented and functional programming. It compiles to Java bytecode and is fully interoperable with Java. Scala aims to improve on Java by allowing for more concise and expressive code through features like functions as first-class objects, pattern matching, immutable data structures, and built-in support for concurrency with the actor model. The document also outlines the Scala ecosystem including frameworks, tools, and companies that use Scala in production.
Introduction to embedded sql for NonStop SQLFrans Jongma
This document provides an introduction to using embedded SQL for NonStop SQL/MX. It discusses the compilation process which involves preprocessing SQL statements, compiling the host language code, and compiling the SQL to generate an execution plan stored in a module file. It provides examples of simple compilation and controlling the module names and locations. The goal is to help new SQL/MX users get started quickly with embedded SQL.
The Logger component logs messages at specified levels. It can log strings, expressions, or combinations. The logger is configured with a message, level, and optional category. Supported log levels include ERROR, WARN, INFO, DEBUG and TRACE.
2.1 Identify the structure of a web application and web archive file, the name of the WebApp deployment descriptor, and the name of the directories where you place the following:
The WebApp deployment descriptor
The WebApp class files
Any auxiliary JAR files
2.2 Match the name with a description of purpose or functionality, for each of the following deployment descriptor elements:
Servlet instance
Servlet name
Servlet class
Initialization parameters
URL to named servlet mapping
This paper defines different components of Ur/Web programming language. Web programming has gradually evolved from a document delivery platform to architecture for distributed programming. Ur/Web, a domain-specific, statically typed functional programming language with a much simpler model for programming modern Web applications. Ur/Web’s model is unified, where programs in a single programming language are compiled to other “Web standards” languages as needed; supports novel kinds of encapsulation of Web-specific state; and exposes simple concurrency, where programmers can reason about distributed, multithreaded applications.
2.1 Identify the structure of a web application and web archive file, the name of the WebApp deployment descriptor, and the name of the directories where you place the following:
The WebApp deployment descriptor
The WebApp class files
Any auxiliary JAR files
2.2 Match the name with a description of purpose or functionality, for each of the following deployment descriptor elements:
Servlet instance
Servlet name
Servlet class
Initialization parameters
URL to named servlet mapping
This document discusses linking in the MS-DOS operating system. It describes how linking involves combining various pieces of code and data into a single file that can be loaded into memory and executed. The document outlines the role of linkers in automatically performing linking. It also provides details on the object module format and record types in MS-DOS, and describes how a linker would be designed for MS-DOS, including its invocation command format, linking and relocation processes, and use of data structures.
The document is a presentation about Structured Query Language (SQL) given by Md. Soumik Ahmmed from the Computer Science & Engineering department at Pundra University of Science & Technology. It defines SQL as a language used to store, manipulate, and retrieve data from relational databases. It outlines the main types of SQL commands, including data definition language, data manipulation language, data control language, transaction control language, and data query language. It provides examples of commands that fall under each language type and discusses the advantages and disadvantages of SQL.
Web applications and web servers, HTML form Development, GET and POST, ASP.NET application, ASP.NET namespaces, creating sample C# web Applications, architecture, Debugging and Tracing of ASP.NET, Introduction to web Form controls. Building Web Services- web service namespaces, building simple web
Mike Taulty MIX10 Silverlight Frameworks and Patternsukdpe
This document provides an overview and summary of Silverlight 4 frameworks, patterns, and capabilities. It discusses ASP.NET client application services, WCF data services, WCF RIA services, navigation, search, extensible applications using MEF, and the MVVM pattern. The document includes several demos that could be shown to illustrate these topics. It also provides information on related sessions at the conference to learn more.
The document provides an overview of building server-side Java web applications using Tomcat, JSP, and JavaBeans, covering topics like installing Tomcat, creating Java and JSP projects, writing JSP pages and JavaBeans, using sessions and includes, and the Model 2 architecture. It includes tutorials on setting up a sample "Phones" application to demonstrate concepts like retrieving data from a database and displaying it dynamically in JSP pages.
A JDBC driver enables a Java application to interact with a database by implementing the JDBC API and translating queries to the database's protocol. For each supported database, a specific JDBC driver is required. The driver handles the communication between the application and database, executing queries and returning results.
PL/SQL is Oracle's procedural language extension to SQL that allows users to manipulate and process Oracle data. PL/SQL code can reside on both the client-side and server-side. When executed on the server-side, the entire PL/SQL block is passed to the Oracle server for processing. When on the client-side, only SQL statements are sent to the server for processing while the rest of the block runs on the client. PL/SQL blocks contain a declare, executable, and exception handling section and can be either named or anonymous. Named blocks can be stored procedures and functions while anonymous cannot be stored.
PL/SQL is Oracle's procedural language extension to SQL that allows developers to write programs that combine SQL statements to manipulate data with procedural programming constructs like variables, conditions, and loops. PL/SQL code can be executed on the Oracle server for improved performance compared to executing multiple SQL statements individually. PL/SQL blocks contain a declaration section, executable section, and optional exception handling section. Named blocks can be stored in the database as procedures, functions, or packages while anonymous blocks are executed once.
PL/SQL is a procedural language extension for SQL and the Oracle relational database. It allows developers to perform transactions in an Oracle database, define and control cursors, handle exceptions, and provide a host language for SQL. PL/SQL code is organized into logical blocks with optional declaration, mandatory executable, and optional exception handling sections. It provides benefits like improved performance, portability, and integration with SQL.
PL/SQL is a programming language that combines the SQL operations of querying and manipulating data in an Oracle database with the procedural language constructs of variables, conditions, and loops. PL/SQL can be used for database-side programming as well as client-side application development. It provides advantages like better performance, portability, higher productivity, and integration with Oracle. PL/SQL supports various data types, control structures, exception handling, and object-oriented programming features. Cursors allow processing of multiple rows returned from a SQL statement and can be static, dynamic, or reference types. Procedures and functions are reusable program units that allow passing parameters and returning values.
This document discusses advanced PL/SQL capabilities that can improve application performance and add new functionality to databases. It focuses on bulk binding, which allows fetching and inserting multiple rows in a single operation instead of one by one. This reduces processing overhead. It also covers SQL and PL/SQL data types, and how collections like nested tables and varrays allow treating local PL/SQL variables like database tables using SQL operations.
The document discusses PL/SQL security and transactions in Oracle. It defines single and multiple query transactions and explains how Oracle implements concurrency control through locking at the row, page and table levels using shared and exclusive locks. It also discusses implicit locking as Oracle's default strategy and how explicit locking can override this. The document provides examples of using SELECT...FOR UPDATE and LOCK TABLE statements for explicit locking.
The document introduces the Scala programming language. It discusses Scala's history and motivation, as well as its key features. Scala was created by Martin Odersky and combines object-oriented and functional programming. It compiles to Java bytecode and is fully interoperable with Java. Scala aims to improve on Java by allowing for more concise and expressive code through features like functions as first-class objects, pattern matching, immutable data structures, and built-in support for concurrency with the actor model. The document also outlines the Scala ecosystem including frameworks, tools, and companies that use Scala in production.
Introduction to embedded sql for NonStop SQLFrans Jongma
This document provides an introduction to using embedded SQL for NonStop SQL/MX. It discusses the compilation process which involves preprocessing SQL statements, compiling the host language code, and compiling the SQL to generate an execution plan stored in a module file. It provides examples of simple compilation and controlling the module names and locations. The goal is to help new SQL/MX users get started quickly with embedded SQL.
The Logger component logs messages at specified levels. It can log strings, expressions, or combinations. The logger is configured with a message, level, and optional category. Supported log levels include ERROR, WARN, INFO, DEBUG and TRACE.
2.1 Identify the structure of a web application and web archive file, the name of the WebApp deployment descriptor, and the name of the directories where you place the following:
The WebApp deployment descriptor
The WebApp class files
Any auxiliary JAR files
2.2 Match the name with a description of purpose or functionality, for each of the following deployment descriptor elements:
Servlet instance
Servlet name
Servlet class
Initialization parameters
URL to named servlet mapping
This paper defines different components of Ur/Web programming language. Web programming has gradually evolved from a document delivery platform to architecture for distributed programming. Ur/Web, a domain-specific, statically typed functional programming language with a much simpler model for programming modern Web applications. Ur/Web’s model is unified, where programs in a single programming language are compiled to other “Web standards” languages as needed; supports novel kinds of encapsulation of Web-specific state; and exposes simple concurrency, where programmers can reason about distributed, multithreaded applications.
2.1 Identify the structure of a web application and web archive file, the name of the WebApp deployment descriptor, and the name of the directories where you place the following:
The WebApp deployment descriptor
The WebApp class files
Any auxiliary JAR files
2.2 Match the name with a description of purpose or functionality, for each of the following deployment descriptor elements:
Servlet instance
Servlet name
Servlet class
Initialization parameters
URL to named servlet mapping
This document discusses linking in the MS-DOS operating system. It describes how linking involves combining various pieces of code and data into a single file that can be loaded into memory and executed. The document outlines the role of linkers in automatically performing linking. It also provides details on the object module format and record types in MS-DOS, and describes how a linker would be designed for MS-DOS, including its invocation command format, linking and relocation processes, and use of data structures.
The document is a presentation about Structured Query Language (SQL) given by Md. Soumik Ahmmed from the Computer Science & Engineering department at Pundra University of Science & Technology. It defines SQL as a language used to store, manipulate, and retrieve data from relational databases. It outlines the main types of SQL commands, including data definition language, data manipulation language, data control language, transaction control language, and data query language. It provides examples of commands that fall under each language type and discusses the advantages and disadvantages of SQL.
Web applications and web servers, HTML form Development, GET and POST, ASP.NET application, ASP.NET namespaces, creating sample C# web Applications, architecture, Debugging and Tracing of ASP.NET, Introduction to web Form controls. Building Web Services- web service namespaces, building simple web
Mike Taulty MIX10 Silverlight Frameworks and Patternsukdpe
This document provides an overview and summary of Silverlight 4 frameworks, patterns, and capabilities. It discusses ASP.NET client application services, WCF data services, WCF RIA services, navigation, search, extensible applications using MEF, and the MVVM pattern. The document includes several demos that could be shown to illustrate these topics. It also provides information on related sessions at the conference to learn more.
The document provides an overview of building server-side Java web applications using Tomcat, JSP, and JavaBeans, covering topics like installing Tomcat, creating Java and JSP projects, writing JSP pages and JavaBeans, using sessions and includes, and the Model 2 architecture. It includes tutorials on setting up a sample "Phones" application to demonstrate concepts like retrieving data from a database and displaying it dynamically in JSP pages.
A JDBC driver enables a Java application to interact with a database by implementing the JDBC API and translating queries to the database's protocol. For each supported database, a specific JDBC driver is required. The driver handles the communication between the application and database, executing queries and returning results.
PL/SQL is Oracle's procedural language extension to SQL that allows users to manipulate and process Oracle data. PL/SQL code can reside on both the client-side and server-side. When executed on the server-side, the entire PL/SQL block is passed to the Oracle server for processing. When on the client-side, only SQL statements are sent to the server for processing while the rest of the block runs on the client. PL/SQL blocks contain a declare, executable, and exception handling section and can be either named or anonymous. Named blocks can be stored procedures and functions while anonymous cannot be stored.
PL/SQL is Oracle's procedural language extension to SQL that allows developers to write programs that combine SQL statements to manipulate data with procedural programming constructs like variables, conditions, and loops. PL/SQL code can be executed on the Oracle server for improved performance compared to executing multiple SQL statements individually. PL/SQL blocks contain a declaration section, executable section, and optional exception handling section. Named blocks can be stored in the database as procedures, functions, or packages while anonymous blocks are executed once.
PL/SQL is a procedural language extension for SQL that allows for the processing of SQL and procedural language elements. It was developed by Oracle Corporation to enhance the capabilities of SQL. PL/SQL code is organized into blocks that contain a declarative section, executable section, and exception section. It is an embedded language executed by the Oracle database server and is used for developing stored procedures and triggers.
This ppt contains the basic tutorial for Oracle pl/sql. It not only contains the theoretical but some work on exercises as well to enhance the practical knowledge for those who are new to PL/SQL field.
PL/SQL is a programming language developed by Oracle Corporation to extend SQL and program the Oracle database. Key facts about PL/SQL include that it is portable, provides an interpreted programming environment, can be called from SQL*Plus or external programs, and has syntax based on Ada and Pascal. PL/SQL offers features like tight integration with SQL, error checking, data types, programming structures, and support for functions, procedures, object-oriented programming, and web applications.
Oracle PL/SQL online training | PL/SQL online Trainingsuresh
PL/SQL is Oracle's procedural language extension to SQL that allows mixing of SQL statements and procedural logic like conditionals and loops. It uses SQL for data manipulation and its own control structures for processing. PL/SQL program units include anonymous blocks and stored procedures. Stored procedures are reusable blocks of code stored in the database under a name that can be executed. PL/SQL provides features like variables, control structures, exception handling, and modular programming with functions and procedures.
The document discusses cursors in Oracle. It defines cursors as pointers that allow PL/SQL programs to control and process SQL statements that return multiple rows. There are two types of cursors: implicit cursors are automatically created for SQL statements while explicit cursors must be declared, opened, fetched from, and closed by the programmer for control over queries returning multiple rows. The key operations for explicit cursors are declaring them to initialize in memory, opening them to determine rows and set a pointer, fetching rows one by one into variables, and closing them to free resources.
This document contains lecture material on Relational Database Management Systems (RDBMS) and PL/SQL prepared by D.GAYA, an Assistant Professor of Computer Science at Pondicherry University Community College. The document covers PL/SQL concepts such as blocks, variables, data manipulation using DML statements, triggers, procedures, functions, packages, and exception handling. It provides examples and explanations of PL/SQL blocks, variable declaration and assignment, data types, and manipulating data through insertion, updating, deletion, and selection using SQL statements within PL/SQL blocks. The document is intended to teach second year B.Voc students in the Software Development program about PL/SQL and RDBMS.
Exploring plsql new features best practices september 2013Andrejs Vorobjovs
The document discusses exploring new features and best practices in PL/SQL for better performance. It covers topics like parsing time, bulk binding, PL/SQL function result cache, subprogram inlining, finer grained dependencies, and new features in Oracle Database 12c. The presentation provides an overview of Oracle SQL Developer and guidelines for writing efficient and readable PL/SQL code.
The document discusses PL/SQL, its advantages over SQL, and its basic structure and components. PL/SQL was developed by Oracle Corporation as a procedural extension to SQL. It allows for programming constructs like loops and conditionals. A PL/SQL block consists of a declare, begin, exception, and end section. It supports data types, variables, constants, control structures, and cursors. Cursors store the results of a SQL query and can be either implicit or explicitly defined.
This document discusses cursors in Oracle PL/SQL. It defines a cursor as a handle or pointer to a context area that allows a program to control how SQL statements are processed. There are two types of cursors - implicit cursors that are automatically created, and explicit cursors that are declared by the programmer. The processing of an explicit cursor involves declaring it, opening it to allocate memory, fetching rows from it one at a time, and closing it to free memory. Cursors can be used to retrieve and process rows from a query.
This document provides an introduction to PL/SQL and its benefits and uses. It discusses PL/SQL's integration of procedural constructs with SQL, its block structure for code organization, and its advantages like improved performance and modularity. It also describes different PL/SQL block types, programming environments like iSQL*Plus, and how to output messages from PL/SQL blocks. The overall purpose is to explain the fundamentals of PL/SQL to readers.
This document provides an introduction to PL/SQL (Procedural Language extensions to SQL). It discusses SQL commands and functions, advantages of PL/SQL, and various PL/SQL structures including blocks, variables, functions, procedures, IF statements, CASE statements, loops, WHILE loops, and cursors. The document contains sample code examples to illustrate these PL/SQL structures and their syntax. It was submitted by a student as part of a class assignment on PL/SQL.
This document outlines an 18 period course on Oracle SQL and PL/SQL from a book. It divides the book into three parts that cover database concepts, Oracle SQL, and application development using PL/SQL. Chapters in Part II on PL/SQL include introduction to PL/SQL programming, functions/procedures/packages, exception handling, triggers, implicit/explicit cursors, advanced cursors, collections, objects, dynamic SQL, and performance tuning. The book includes examples, questions, and workouts. Teaching materials are available online.
1) The document describes a PL/SQL code block that will accept a user's account number, check if their balance is less than the minimum balance, and deduct $100 from the balance if so.
2) The code block consists of a declaration section, execution section, and optional exception handling section.
3) A sample PL/SQL code is provided that accepts an account number from the user, checks the balance, and updates the balance by deducting $100 if the balance is less than the minimum.
The document provides an overview of PL/SQL and discusses declaring variables in PL/SQL. It describes the basic structure of a PL/SQL block, which consists of an optional DECLARE section, mandatory BEGIN and END sections, and an optional EXCEPTION section. Variables can be declared in the DECLARE section and used throughout the block to store and manipulate data. Variables provide benefits like temporary storage, value manipulation, reusability, and ease of maintenance. The document also discusses different types of PL/SQL blocks and program constructs.
What does PL_SQL stand for and what is the functioning of PL_SQL.docxshivanikaale214
PL/SQL, Oracle's procedural extension to SQL, facilitates the creation of modular, efficient, and error-resilient code for database-centric applications. Mastering PL/SQL unlocks lucrative career prospects in database management and programming, offering essential skills for navigating the dynamic landscape of data management.
The document outlines a test plan for a Waste Management Inspection Tracking System (WMITS) software. It includes sections on test scope and objectives, interfaces to be tested, testing strategies including unit, integration, validation and high-order testing, a test schedule, and resources and staffing. The testing aims to minimize bugs and defects by thoroughly testing all components, functions, and the integrated system prior to release.
A test case is a document that describes an input, action, or event and the expected response to determine if a feature is working correctly. It includes items like the test case number, pre-condition, description, expected result, actual result, status, and remarks. Good test cases clearly state what is being tested, are independent of each other, avoid conditional language, and have a uniform structure.
This SQL tutorial document covers topics related to SQL including CREATE, INSERT, UPDATE, SELECT, ALTER and DROP. It provides examples of creating tables for a movie database with movies, actors and casting tables. It demonstrates populating the database with sample data and performing operations like updating records, selecting specific records that match criteria, using aggregation functions and joining multiple tables in queries. The document is an introduction to basic and some more advanced SQL concepts through examples related to a movie database schema.
This document provides an overview of basic SQL concepts including:
- The differences between DBMS and RDBMS and examples of each.
- SQL and its use for managing relational databases.
- Key concepts like primary keys, foreign keys, and constraints.
- SQL statements for data definition, manipulation, and control.
- Data types commonly used in SQL.
- Basic syntax for common SQL statements like CREATE TABLE, INSERT, SELECT, and WHERE.
The document discusses different types of software testing including system testing, component testing, test case design, and test automation. It describes the goals of validation testing and defect testing. Component testing involves testing individual program units in isolation while system testing integrates components to test groups of components working together. Test cases should be designed based on requirements, input/output partitions, and program structure. Automated tests help test systems efficiently.
This document provides information on various software development life cycle (SDLC) models including Waterfall, V-Shaped, Prototyping, Rapid Application Development (RAD), Incremental, Spiral, and Agile models. It describes the key characteristics, steps, strengths, and weaknesses of each model. It also provides guidance on which types of projects each model is best suited for. The document is an in-depth reference on SDLC models that software engineers can use to select the most appropriate model based on their project needs and constraints.
The document provides an overview of the Microsoft .NET Framework. It discusses how .NET aims to unite isolated web applications and make information available anytime through the use of web services, XML support, and rich development tools. The .NET Framework includes a Common Language Runtime that manages running code and supports multiple programming languages. It also includes various framework services like ASP.NET, ADO.NET, and Windows forms. The Common Language Specification allows different .NET languages to interoperate. Visual Studio .NET is the primary development tool for building .NET applications.
The .NET architecture consists of the Common Language Runtime (CLR) and Framework Class Library (FCL). The CLR defines a common programming model and standard type system for cross-platform, multi-language development. .NET supports multiple languages and compiles applications into assemblies that can run on any supported platform as long as the CLR and FCL are present. Component-based application designs with assemblies packaged into EXEs and DLLs are common.
Change management is concerned with tracking software changes and implementing them efficiently. Version control tools assign identifiers to new versions, store differences between versions rather than full code, and record change reasons. Microsoft Visual SourceSafe (VSS) helps manage projects by saving all files and versions to a database, making team coordination and access control easier while keeping files secure and backed up.
Agile software engineering is an iterative approach that focuses on collaboration, individuals, working software, customer feedback, and responding to change. It originated from principles outlined in the Agile Manifesto and frameworks like Scrum and XP. Agile approaches are best suited for complex or unpredictable projects and large organizations that can support overlapping teams. Case studies show benefits include increased flexibility, quality, and timely delivery when adopting agile practices, though challenges include lack of structure and difficulty scaling to large or safety-critical systems. The future may bring more adoption of agile approaches as environments become more dynamic.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdfMalak Abu Hammad
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
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2. PL/SQL
• PL/SQL is Oracle's procedural language extension
to SQL, the non-procedural relational database
language.
• With PL/SQL, you can use SQL statements to
manipulate ORACLE data and the flow of control
statements to process the data. Moreover, you can
declare constants and variables, define subprograms
(procedures and functions), and trap runtime errors.
Thus, PL/SQL combines the data manipulating
power of SQL with the data processing power of
procedural languages.
Bordoloi and Bock
3. PL/SQL
• Many Oracle applications are built using client-server
architecture. The Oracle database resides on the server.
• The program that makes requests against this database
resides on the client machine.
• This program can be written in C, Java, or PL/SQL.
• While PL/SQL is just like any other programming
language, it has syntax and rules that determine how
programming statements work together. It is important
for you to realize that PL/SQL is not a stand-alone
programming language.
• PL/SQL is a part of the Oracle RDBMS, and it can
reside in two environments, the client and the server.
Bordoloi and Bock
4. PL/SQL
• As a result, it is very easy to move PL/SQL modules
between server-side and client-side applications.
• When the PL/SQL engine is located on the server, the
whole PL/SQL block is passed to the PL/SQL engine
on the Oracle server.
• The PL/SQL engine processes the block according to
the Figure 2.1.
Bordoloi and Bock
6. PL/SQL
• When the PL/SQL engine is located on the client, as it
is in the Oracle Developer Tools, the PL/SQL
processing is done on the client side.
• All SQL statements that are embedded within the
PL/SQL block are sent to the Oracle server for further
processing. When PL/SQL block contains no SQL
statement, the entire block is executed on the client
side.
Bordoloi and Bock
7. DIFFERENCE BETWEEN PL/SQL AND SQL
• When a SQL statement is issued on the client
computer, the request is made to the database on the
server, and the result set is sent back to the client.
• As a result, a single SQL statement causes two trips
on the network. If multiple SELECT statements are
issued, the network traffic increase significantly very
fast. For example, four SELECT statements cause
eight network trips.
• If these statements are part of the PL/SQL block, they
are sent to the server as a single unit. The SQL
statements in this PL/SQL program are executed at the
server and the result set is sent back as a single unit.
There is still only one network trip made as is in case
of a single SELECT statement.
Bordoloi and Bock
9. PL/SQL BLOCKS
• PL/SQL blocks can be divided into two groups:
1. Named and
2. Anonymous.
• Named blocks are used when creating subroutines.
These subroutines are procedures, functions, and
packages.
• The subroutines can be stored in the database and
referenced by their names later on.
• In addition, subroutines can be defined within the
anonymous PL/SQL block.
• Anonymous PL/SQL blocks do not have names. As a
result,they cannot be stored in the database and
referenced later.
Bordoloi and Bock
10. PL/SQL BLOCK STRUCTURE
• PL/SQL blocks contain three sections
1. Declare section
2. Executable section and
3. Exception-handling section.
• The executable section is the only mandatory section
of the block.
• Both the declaration and exception-handling sections
are optional.
Bordoloi and Bock
11. PL/SQL BLOCK STRUCTURE
• PL/SQL block has the following structure:
DECLARE
Declaration statements
BEGIN
Executable statements
EXCETION
Exception-handling statements
END ;
Bordoloi and Bock
12. DECLARATION SECTION
• The declaration section is the first section of the
PL/SQL block.
• It contains definitions of PL/SQL identifiers such
as variables, constants, cursors and so on.
• Example
DECLARE
v_first_name VARCHAR2(35) ;
v_last_name VARCHAR2(35) ;
v_counter NUMBER := 0 ;
Bordoloi and Bock
13. EXECUTABLE SECTION
• The executable section is the next section of the PL/SQL
block.
• This section contains executable statements that allow
you to manipulate the variables that have been declared
in the declaration section.
BEGIN
SELECT first_name, last_name
INTO v_first_name, v_last_name
FROM student
WHERE student_id = 123 ;
DBMS_OUTPUT.PUT_LINE
(‘Student name :’ || v_first_name ||‘ ’|| v_last_name);
END;
Bordoloi and Bock
14. EXCEPTION-HANDLING SECTION
• The exception-handling section is the last section of
the PL/SQL block.
• This section contains statements that are executed
when a runtime error occurs within a block.
• Runtime errors occur while the program is running
and cannot be detected by the PL/SQL compiler.
EXCEPTION
WHEN NO_DATA_FOUND THEN
DBMS_OUTPUT.PUT_LINE
(‘ There is no student with student id 123 ’);
END;
Bordoloi and Bock
15. HOW PL/SQL GETS EXECUTED
• Every time an anonymous block is executed, the
code is sent to the PL/SQL engine on the server
where it is compiled.
• The named PL/SQL block is compiled only at the
time of its creation, or if it has been changed.
• The compilation process includes syntax checking,
binding and p-code generation.
• Syntax checking involves checking PL/SQL code for
syntax or compilation errors.
• Once the programmer corrects syntax errors, the
compiler can assign a storage address to program
variables that are used to hold data for Oracle. This
process is called Binding.
Bordoloi and Bock
16. HOW PL/SQL GETS EXECUTED
• After binding, p-code is generated for the PL/SQL
block.
• P-code is a list of instructions to the PL/SQL engine.
• For named blocks, p-code is stored in the database,
and it is used the next time the program is executed.
• Once the process of compilation has completed
successfully, the status for a named PL/SQL block is
set to VALID, and also stored in the database.
• If the compilation process was not successful, the
status for a named PL/SQL block is set to INVALID.
Bordoloi and Bock
17. PL/SQL IN SQL*PLUS
• SQL*Plus is an interactive tool that allows
you to type SQL or PL/SQL statements at the
command prompt.
• These statements are then sent to the database.
Once they are processed, the results are sent
back from the database and displayed on the
screen.
• There are some differences between entering
SQL and PL/SQL statements.
Bordoloi and Bock
18. SQL EXAMPLE
SELECT first_name, last_name
FROM student;
• The semicolon terminates this SELECT
statement. Therefore, as soon as you type
semicolon and hit the ENTER key, the result
set is displayed to you.
Bordoloi and Bock
19. PL/SQL EXAMPLE
DECLARE
v_first_name VARCHAR2(35);
v_last_name VARCHAR2(35);
BEGIN
SELECT first_name, last_name
INTO v_first_name, v_last_name
FROM student
WHERE student_id = 123;
DBMS_OUTPUT.PUT_LINE
('Student name: '||v_first_name||' '||v_last_name);
EXCEPTION
WHEN NO_DATA_FOUND THEN
DBMS_OUTPUT.PUT_LINE
('There is no student with student id 123');
END;
. Bordoloi and Bock
/
20. PL/SQL EXAMPLE
• There are two additional lines at the end of the block
containing “.” and “/”. The “.” marks the end of the
PL/SQL block and is optional.
• The “/” executes the PL/SQL block and is required.
• When SQL*Plus reads SQL statement, it knows that
the semicolon marks the end of the statement.
Therefore, the statement is complete and can be sent
to the database.
• When SQL*Plus reads a PL/SQL block, a semicolon
• marks the end of the individual statement within the
block. In other words, it is not a block terminator.
Bordoloi and Bock
21. PL/SQL EXAMPLE
• Therefore, SQL*Plus needs to know when the block
has ended. As you have seen in the example, it can
be done with period and forward slash.
Bordoloi and Bock
22. EXECUTING PL/SQL
PL/SQL can be executed directly in SQL*Plus. A
PL/SQL program is normally saved with an
.sql extension. To execute an anonymous
PL/SQL program, simply type the following
command at the SQL prompt:
SQL> @DisplayAge
Bordoloi and Bock
23. GENERATING OUTPUT
Like other programming languages, PL/SQL provides a
procedure (i.e. PUT_LINE) to allow the user to
display the output on the screen. For a user to able to
view a result on the screen, two steps are required.
First, before executing any PL/SQL program, type the
following command at the SQL prompt (Note: you
need to type in this command only once for every
SQL*PLUS session):
SQL> SET SERVEROUTPUT ON;
or put the command at the beginning of the program,
right before the declaration section.
Bordoloi and Bock
24. GENERATING OUTPUT
Second, use DBMS_OUTPUT.PUT_LINE in your
executable section to display any message you want
to the screen.
Syntax for displaying a message:
DBMS_OUTPUT.PUT_LINE(<string>);
in which PUT_LINE is the procedure to generate the
output on the screen, and DBMS_OUTPUT is the
package to which the PUT_LINE belongs.
DBMS_OUTPUT_PUT_LINE(‘My age is ‘ ||
num_age);
Bordoloi and Bock
25. SUBSTITUTIONVARIABLES
• SQL*Plus allows a PL/SQL block to receive input
information with the help of substitution variables.
• Substitution variables cannot be used to output the
values because no memory is allocated for them.
• SQL*Plus will substitute a variable before the
PL/SQL block is sent to the database.
• Substitution variables are usually prefixed by the
ampersand(&) character or double ampersand (&&)
character.
Bordoloi and Bock
26. EXAMPLE
DECLARE
v_student_id NUMBER := &sv_student_id;
v_first_name VARCHAR2(35);
v_last_name VARCHAR2(35);
BEGIN
SELECT first_name, last_name
INTO v_first_name, v_last_name
FROM student
WHERE student_id = v_student_id;
DBMS_OUTPUT.PUT_LINE
('Student name: '||v_first_name||' '||v_last_name);
EXCEPTION
WHEN NO_DATA_FOUND THEN
DBMS_OUTPUT.PUT_LINE('There is no such student');
END; and Bock
Bordoloi
27. EXAMPLE
• When this example is executed, the user is asked to
provide a value for the student ID.
• The example shown above uses a single ampersand
for the substitution variable.
• When a single ampersand is used throughout the
PL/SQL block, the user is asked to provide a value
for each occurrence of the substitution variable.
Bordoloi and Bock
28. EXAMPLE
BEGIN
DBMS_OUTPUT.PUT_LINE('Today is ‘||’&sv_day');
DBMS_OUTPUT.PUT_LINE('Tomorrow will be ‘||’ &sv_day');
END;
This example produces the following output:
Enter value for sv_day: Monday
old 2: DBMS_OUTPUT.PUT_LINE('Today is ‘||’ &sv_day');
new 2: DBMS_OUTPUT.PUT_LINE('Today is ‘||’ Monday');
Enter value for sv_day: Tuesday
old 3: DBMS_OUTPUT.PUT_LINE('Tomorrow will be ‘||’ &sv_day');
new 3: DBMS_OUTPUT.PUT_LINE('Tomorrow will be ‘||’ Tuesday');
Today is Monday
Tomorrow will be Tuesday
PL/SQL procedure successfully completed.
Bordoloi and Bock
29. EXAMPLE
• When a substitution variable is used in the script, the
output produced by the program contains the
statements that show how the substitution was done.
• If you do not want to see these lines displayed in the
output produced by the script, use the SET command
option before you run the script as shown below:
SET VERIFY OFF;
Bordoloi and Bock
30. EXAMPLE
• Then, the output changes as shown below:
Enter value for sv_day: Monday
Enter value for sv_day: Tuesday
Today is Monday
Tomorrow will be Tuesday
PL/SQL procedure successfully completed.
• The substitution variable sv_day appears twice in this
PL/SQL block. As a result, when this example is run, the user
is asked twice to provide the value for the same variable.
Bordoloi and Bock
31. EXAMPLE
BEGIN
DBMS_OUTPUT.PUT_LINE('Today is '||'&&sv_day');
DBMS_OUTPUT.PUT_LINE('Tomorrow will be ‘||’ &sv_day');
END;
• In this example, substitution variable sv_day is prefixed
by double ampersand in the first
DBMS_OUTPUT.PUT_LINE statement. As a result,
this version of the example produces different output.
Bordoloi and Bock
32. OUTPUT
Enter value for sv_day: Monday
old 2: DBMS_OUTPUT.PUT_LINE('Today is ‘||’ &&sv_day');
new 2: DBMS_OUTPUT.PUT_LINE('Today is ‘||’ Monday');
old 3: DBMS_OUTPUT.PUT_LINE('Tomorrow will be ‘||’ &sv_day');
new 3: DBMS_OUTPUT.PUT_LINE('Tomorrow will be ‘||’ Monday');
Today is Monday
Tomorrow will be Monday
PL/SQL procedure successfully completed.
• It is clear that the user is asked only once to provide the value for
the substitution variable sv_day.
• As a result, both DBMS_OUTPUT.PUT_LINE statements use the
value of Monday entered previously by the user.
Bordoloi and Bock
33. Substitution Variables
• Ampersand(&) character and double ampersand (&&)
characters are the default characters that denote
substitution variables.
• There is a special SET command option available in
SQL*Plus that allows to change the default character
(&) to any other character or disable the substitution
variable feature.
• This SET command has the following syntax:
SET DEFINE character
or
SET DEFINE ON
or
SET DEFINE OFF
Bordoloi and Bock
34. Substitution Variables
• The first set command option changes the prefix of
the substitution variable from an ampersand to
another character. This character cannot be
alphanumeric or white space.
• The second (ON option) and third (OFF option)
control whether SQL*Plus will look for substitution
variables or not.
• In addition, ON option changes the value of the
character back to the ampersand.
Bordoloi and Bock