The document discusses database concepts and technologies used for connecting to databases from VB.NET applications. It describes ODBC, OLE DB, and ADO.NET as interfaces for connecting to different database management systems. It also discusses database concepts like tables, rows, columns, keys, and relationships. Finally, it provides an overview of setting up a connection to a database in VB.NET by configuring a binding source, table adapter, and dataset to retrieve and display data.
Intro databases
Data – a collection of facts made up of text, numbers and dates: Ali 35000 7/18/86
Information - the meaning given to data in the way it is interpreted:
Mr. Ali is a sales person whose annual salary is $35,000 and whose hire date is July 18, 1986.
A structured collection of related data
An filing cabinet, an address book, a telephone directory, a timetable, etc.
Google and your email is a database
School Student Information System
Advance Database Management Systems -Object Oriented Principles In DatabaseSonali Parab
An OODBMS is the result of combining object oriented programming principles with database management principles. Object oriented programming concepts such as encapsulation, polymorphism and inheritance are enforced as well as database management concepts such as the ACID properties (Atomicity, Consistency, Isolation and Durability) which lead to system integrity, support for an ad hoc query language and secondary storage management systems which allow for managing very large amounts of data. The Object Oriented Database Manifesto specifically lists the following features as mandatory for a system to support before it can be called an OODBMS; Complex objects, Object identity, Encapsulation , Types and Classes , Class or Type Hierarchies, Overriding, overloading and late binding, Computational completeness , Extensibility,Persistence , Secondary storage management, Concurrency, Recovery and an Ad Hoc Query Facility.
Intro databases
Data – a collection of facts made up of text, numbers and dates: Ali 35000 7/18/86
Information - the meaning given to data in the way it is interpreted:
Mr. Ali is a sales person whose annual salary is $35,000 and whose hire date is July 18, 1986.
A structured collection of related data
An filing cabinet, an address book, a telephone directory, a timetable, etc.
Google and your email is a database
School Student Information System
Advance Database Management Systems -Object Oriented Principles In DatabaseSonali Parab
An OODBMS is the result of combining object oriented programming principles with database management principles. Object oriented programming concepts such as encapsulation, polymorphism and inheritance are enforced as well as database management concepts such as the ACID properties (Atomicity, Consistency, Isolation and Durability) which lead to system integrity, support for an ad hoc query language and secondary storage management systems which allow for managing very large amounts of data. The Object Oriented Database Manifesto specifically lists the following features as mandatory for a system to support before it can be called an OODBMS; Complex objects, Object identity, Encapsulation , Types and Classes , Class or Type Hierarchies, Overriding, overloading and late binding, Computational completeness , Extensibility,Persistence , Secondary storage management, Concurrency, Recovery and an Ad Hoc Query Facility.
Object relational database management systemSaibee Alam
this presentation provide a full explanation of object relational database management system. its a part of advanced database management system. important topic of computer science if you are UG/PG student or preparing for some competitive exam.
c# training | c# training videos | c# object oriented programming | c# courseNancy Thomas
Website : http://www.todaycourses.com
C# Online Training Concepts :
Introduction to Web Controls
Thinking about .NET
Using Visual Studio 2005
Debugging and Handling Exceptions
Data Types and Variables
Introducing Variables and Data Types
Working with Variables and Data Types
Using the .NET Framework
Using .NET Framework Classes
Working with Strings
Working with Dates and Times
Branching and Flow Control
Branching in Code
Repeating Code Blocks
Unconditional Branching
Classes and Objects
Introducing Objects and Classes
Creating Your Own Classes
Working with Classes
Properties and Methods
Overview of Properties and Methods
Working with Properties
Working with Methods
Object-Oriented Techniques
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Object relational database management systemSaibee Alam
this presentation provide a full explanation of object relational database management system. its a part of advanced database management system. important topic of computer science if you are UG/PG student or preparing for some competitive exam.
c# training | c# training videos | c# object oriented programming | c# courseNancy Thomas
Website : http://www.todaycourses.com
C# Online Training Concepts :
Introduction to Web Controls
Thinking about .NET
Using Visual Studio 2005
Debugging and Handling Exceptions
Data Types and Variables
Introducing Variables and Data Types
Working with Variables and Data Types
Using the .NET Framework
Using .NET Framework Classes
Working with Strings
Working with Dates and Times
Branching and Flow Control
Branching in Code
Repeating Code Blocks
Unconditional Branching
Classes and Objects
Introducing Objects and Classes
Creating Your Own Classes
Working with Classes
Properties and Methods
Overview of Properties and Methods
Working with Properties
Working with Methods
Object-Oriented Techniques
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What is Abstraction and Encapsulation? Learn by simple example of what is encapsulation and what is abstraction.
Very common interview question and Part of Object Oriented Programming.
Watch Video to understand it well - https://www.youtube.com/watch?v=OCR1i0H-0YM
Visit our site -
http://www.cheezycode.com/
Learn how objects are created from classes in C# behind the scenes. What happens in the memory and learn how to access properties of an object and assign values to it. Visualize the process by this simple steps.
Visit http://www.cheezycode.com/2016/08/more-about-classes-and-objects-in-csharp.html
In this article we will learn classes and objects in C# programming.
Till now in the past two articles we have seen all the labs which was using functional programming. From now in coming all the articles we will do the programming using classes and objects. As this is professional approach of doing the programming. With classes and objects approach, code it reduces code reading complexity and it improves readability and also offers re-usability.
This presentation is related to nosql database and nosql database types information. this presentationa also contains discussion about, how mongodb works and mongodb security and mongodb sharding information.
A database management system (DBMS) is a collection of programs that enables users to create and maintain databases and control all access to them. The primary goal of a DBMS is to provide an environment that is both convenient and efficient for users to retrieve and store information.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
2. ODBC: Open Database Connectivity
◦ A driver manager
◦ Used for relational databases
OLE DB: The OLE database protocol
◦ Allows a program to access information in many
types of data source.
◦ Data provider: databases, spreadsheets, etc.
ADO.NET: ActiveX Data Objects
◦ An Interface for OLE DB.
◦ Allow programmers to use a standard set of
objects to refer to any OLE DB data source.
3. ADO.NET
VB.NET uses ADO.NET (Active-X Data Objects with .NET
technology), a database technology that supports connection to
different database products. ADO.NET:
· Provides the application programming interface between
the program application and the Database Management System
that manages the database. The current API is ADO.NET 4.
· Stores and transfers data using the Extensible Markup
Language (XML).
· Provides four different types of connections to databases
across networks:
o SQLClient – used to connect to Microsoft's SQL Server DBMS.
o OracleClient – used to connect to Oracle Corporation’s Oracle
DBMS.
o OLEDB (Object Linking and Embedding Database) – used to
connect to all other database formats – this includes Microsoft
Access DBMS.
o ODBC (Open Database Connectivity) – used to connect to
miscellaneous data sources.
4. ADO.NET supports database access using forms
developed for either a Windows or Web Form
environment.
· ADO.NET provides controls that you add to
a form that are used to connect to and manage
data in a database table. Columns from a
database table are bound to database controls.
· Controls you can bind include: Label,
TextBox, and ComboBox controls as well as some
new controls such as the DataGridView control.
5. .Net Applications
ADO.Net
SQL Server OLE DB
.Net Data Provider .Net Data Provider
SQL Server OLE DB OLE DB
Data Source Provider Provider
OLE DB
ODBC
Data Source
ODBC
Data Source
6. Concepts and Terminology
Terminology – learn these terms:
· Database – a special repository—consists
of one or more physical files—used to store and
retrieve data.
· Relational database – a specific type of
database where data rows are stored in separate
tables, and the tables are related to each other by
key values (see figures showing table data later
in these notes).
· Table – basic database object that stores
data – looks like a spreadsheet when you're
viewing data. This figure shows a Student table
diagram from a Microsoft SQL Server database.
7.
8. Rows and Columns – a table consists of rows
and columns.
Row = a row is a record for an individual
course or student.
Column = a column is a field of data stored
for each course such as CourseID, Title,
Department, or for each student such as the
StudentSSN, LastName, and FirstName.
Key Column (Field) – uniquely identifies a
row in a table – almost all database tables
require one or more columns that form the
key column(s) to identify rows uniquely –
eliminates the occurrence of duplicate rows.
9. Database Products – VB.NET stores and
retrieves data for many different database
products including, but not limited to:
Oracle (by Oracle Corporation) and DB2 (by
IBM) for large systems—these are competing
relational database management systems.
Microsoft SQL Server for mid-sized
systems and larger scalable systems.
Microsoft Access and other small-sized,
individual user or small group systems.
10. Entities and Relationships – a database stores
data about individual entities in separate tables –
example university database entities include
Students, Courses, Enrollment (the enrollment of
students in courses), and States.
· This figure shows an entity-relationship
diagram for tables in a Microsoft SQL Server
version of the VB University database.
11. Relationship – the lines
connecting entities represent
relationships between the rows
in one table and rows in another
table.
One-to-many relationship – this
is the relationship from rows in
the Student table to rows in the
Enrollment table (there can be
multiple enrollments by students
in a course).
The key symbol represents the
one side of the relationship; the
infinity symbol represents the
many side of the relationship.
A student can have many
enrollments, but an enrollment
row belongs (is associated) to
only one student row.
12. The relationship from Course to Enrollment is also one-
to-many – a course can have many enrollments.
o There are other kinds of relationships that you will
study in your course on database modeling and design.
Primary Key Columns –table rows are uniquely identified
by one or more primary key columns. Each table has a
different primary key. In the above figure the primary
key column for the various tables are:
Student table key = StudentSSN (social security
number).
States table key = StateCode (2-character abbreviation
for the state name).
Course table key = CourseID (up to 7-characters
identifying a course).
Enrollment table key = CourseID + StudentSSN +
TermCode + YearEnrolled (all four columns are required
to uniquely identify a row in this table since students
enroll in a course more than once. Terms are coded
13. Connecting to a Database or Data Source with
VB
This figure shows the steps in setting up a
connection to a database or other type of
data source.
14. Configure a binding source.
The binding source links to a
data source – a data source
is usually a specific database
file, but can be another data
source such as an array or
text file. Note: Your text
erroneously states that the
data source objects replaces
the connection object used
in earlier versions of VB –
actually the data source
object is used to configure
the connection object – they
are two different objects.
15. Configure a table adapter. A table adapter
handles data retrieval and updating. The
table adapter creates a dataset.
· Create a dataset. A dataset stores data
rows that have been retrieved.
· Add controls to the form and set
properties of the controls to bind the controls
to the columns of a specific table in the
dataset.
· VB will automatically write the code
needed to fill a dataset.
16. Databases Used for Class Projects
For our projects, you may work at home or in the
computer laboratory. We will use Microsoft Access
– there are copies of the databases saved as
Microsoft SQL Server version files for those of you
who wish to experiment in using SQL Server.
· MS Access databases are stored in a single
file.
o A MS Access database file is much smaller than
the same data stored in MS SQL Server and is very
portable.
o You will learn to access data in the file through
Visual Basic so you need not have Microsoft Office
installed on your home computer.
o The database files are named with a .mdb file
name extension.
17. MS SQL Server Express is a free version of
this Microsoft DBMS.
o The free Express version is downloadable
from Microsoft.
o SQL Server and VB make it easy to move
small SQL Server databases along with your
projects for testing. You will learn how to do
this as part of the in-class exercise.
o The database has at least two files – one is
named with a .mdf filename extension and
the accompany log file used for data recovery
has a .ldf filename extension.
19. STUDENT
SSN Enrollmen Course
FirstName t TABLE Table
LastName
RegNo
Mi
SSN CourseId
Zip Title
Telephone CourseID
Departmen
Email DateEnrol t
ed
Units
Click on referential Integrity