Ado Intro in ASP
? Introduction to ADO in Classic ASP
ADO (ActiveX Data Objects) is a Microsoft technology that allows Classic ASP pages to interact with databases like Microsoft SQL Server, Access, MySQL, etc.
? What is ADO?
ADO is a data access interface that lets ASP developers:
Connect to a database
Run SQL commands (e.g., SELECT, INSERT, UPDATE, DELETE)
Retrieve and display data
Use parameters for security
Handle database errors
? Common ADO Objects in ASP
| Object | Description |
|---|---|
Connection | Opens a connection to the database |
Recordset | Holds the results of a query (like a table in memory) |
Command | Runs SQL with or without parameters |
Parameter | Represents values passed to SQL queries safely |
Field | Represents a single column in a Recordset |
Errors | Collection of database-related error messages |
? Simple Example: Display Data from Database
<%Dim conn, rs, sql' Create connectionSet conn = Server.CreateObject("ADODB.Connection")conn.Open "Provider=SQLOLEDB;Data Source=SERVER;Initial Catalog=DB;User ID=USER;Password=PASS;"' Run querysql = "SELECT Name, Email FROM Users"Set rs = conn.Execute(sql)' Display dataDo Until rs.EOF Response.Write "Name: " & rs("Name") & "<br>" Response.Write "Email: " & rs("Email") & "<br><br>" rs.MoveNextLoop' Clean uprs.Close : Set rs = Nothingconn.Close : Set conn = Nothing%>? Why Use ADO in ASP?
Easy database access using VBScript
Works with many databases (SQL Server, Access, MySQL)
Supports stored procedures and parameters
Built into Classic ASP on IIS
Would you like to go deeper into a specific topic like connections, inserts, updates, or parameterized queries?
