This document provides an overview of using ADO.NET for data management. It discusses the core ADO.NET classes and namespaces for connecting to databases and executing commands. These include the Connection, Command, and DataAdapter objects. It also covers populating and manipulating data with DataSet and DataTable objects in a disconnected manner from the database.

1. DATA MANAGEMENT WITH ADO.NET

2. ADO.NET Introduced in ver 1.0 of .NET Used to manage data contained in a relational database.

3. ADO.NET 1.0 DataReader DataSet

4. ADO.NET 2.0 Introduced many new features

5. Common ADO.NET Tasks Selecting Data Inserting Data Updating Data Deleting Data

6. Basic ADO.NET Namespaces and Classes System.Data System.Data.Common System.Data.OleDb System.Data.Odbc System.Data.SqlClient SystemData.SqlTypes

7. Using Connection Object Properties of Connection ConnectionString DataSource Database State

8. Connection Dim conn as SqlConnection Conn=new SqlConnection(“server=localhost;uid=sa;pwd=;database=Northwind”); conn.Open()

9. Command Object Used to execute SQL queries

10. Properties of SqlCommand CommandText CommandTimeout CommandType Connection

11. Execute Methods of Command Object ExecuteNonQuery ExecuteReader ExecuteRow ExecuteScalar ExecuteXmlReader

12. DataAdapter Bridges gap b/w disconnected DataTable object and Physical data source It can execute SELECT on datasource It can execute INSERT, DELETE, UPDATE operations

13. DataAdapter Properties SelectCommand InsertCommand UpdateCommand DeleteCommand

14. Using Parameters Properties of SqlParameter ParameterName SqlDbType Size Direction SourceColumn Value

15. Understanding DataSet and DataTable

16. Using Oracle as Database with ASP.net