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ADO Connection Object


Connection Object

The ADO Connection Object is used to create an open connection to a data source. Through this connection, you can access and manipulate a database.

If you want to access a database multiple times, you should establish a connection using the Connection object. You can also make a connection to a database by passing a connection string via a Command or Recordset object. However, this type of connection is only good for one specific, single query.

ProgID

set objConnection=Server.CreateObject("ADODB.connection")


Properties

Property Description
Attributes Sets or returns the attributes of a Connection object
CommandTimeout Sets or returns the number of seconds to wait while attempting to execute a command
ConnectionString Sets or returns the details used to create a connection to a data source
ConnectionTimeout Sets or returns the number of seconds to wait for a connection to open
CursorLocation Sets or returns the location of the cursor service
DefaultDatabase Sets or returns the default database name
IsolationLevel Sets or returns the isolation level
Mode Sets or returns the provider access permission
Provider Sets or returns the provider name
State Returns a value describing if the connection is open or closed
Version Returns the ADO version number

Methods

Method Description
BeginTrans Begins a new transaction
Cancel Cancels an execution
Close Closes a connection
CommitTrans Saves any changes and ends the current transaction
Execute Executes a query, statement, procedure or provider specific text
Open Opens a connection
OpenSchema Returns schema information from the provider about the data source
RollbackTrans Cancels any changes in the current transaction and ends the transaction

Events

Note:  You cannot handle events using VBScript or JScript (only Visual Basic, Visual C++, and Visual J++ languages can handle events).

Event Description
BeginTransComplete Triggered after the BeginTrans operation
CommitTransComplete Triggered after the CommitTrans operation
ConnectComplete Triggered after a connection starts
Disconnect Triggered after a connection ends
ExecuteComplete Triggered after a command has finished executing
InfoMessage Triggered if a warning occurs during a ConnectionEvent operation
RollbackTransComplete Triggered after the RollbackTrans operation
WillConnect Triggered before a connection starts
WillExecute Triggered before a command is executed

Collections

Collection Description
Errors Contains all the Error objects of the Connection object
Properties Contains all the Property objects of the Connection object


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