Notiz
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Note
This article contains Visual FoxPro ODBC Driver-specific information. For general information about this function, see the appropriate article under ODBC API Reference.
Support
Full.
ODBC API conformance
Level 1.
Remarks
Retrieves the optimal set of columns that uniquely identifies a row in the table.
The Visual FoxPro ODBC Driver returns the columns that make up the primary key on the FoxPro table. (See SQLPrimaryKeys.) If called with fColType set to SQL_ROWVER, no columns are returned. SQLSpecialColumns works only for data sources that are databases.
For more information, see SQLSpecialColumns Function in the ODBC Programmer's Reference.