How to: Obtain a FAST_FORWARD Cursor

Data creazione: 14 aprile 2006

To obtain a forward-only, read-only cursor, set the rowset properties DBPROP_SERVERCURSOR, DBPROP_OTHERINSERT, DBPROP_OTHERUPDATEDELETE, DBPROP_OWNINSERT, and DBPROP_OWNUPDATEDELETE to VARIANT_TRUE.

A complete sample shows how to set the rowset properties to obtain a FAST_FORWARD cursor. After the properties are set, a SELECT statement is executed to retrieve and display the Name column of the Purchasing.Vendor table in the AdventureWorks database.

The complete sample code is in the file GetFastForwardCursor.cpp. You can download an archive containing the sample from the SQL Server Downloads page on MSDN.

This sample was developed using Microsoft Visual C++ 2005.

Nota sulla protezione:
When possible, use Windows Authentication. If Windows Authentication is not available, prompt users to enter their credentials at run time. Avoid storing credentials in a file. If you must persist credentials, you should encrypt them with the Win32 crypto API.

To obtain FAST_FORWARD cursor

1. Establish a connection to the data source.

2. Set the rowset properties DBPROP_SERVERCURSOR, DBPROP_OTHERINSERT, DBPROP_OTHERUPDATEDELETE, DBPROP_OWNINSERT, and DBPROP_OWNUPDATEDELETE to VARIANT_TRUE.

3. Execute the command.

Vedere anche

Concetti

Obtaining a FAST_FORWARD Cursor

Guida in linea e informazioni

Assistenza su SQL Server 2005