Advantage Client Engine
Determines if the given index order is nullable.
UNSIGNED32 |
AdsIsIndexNullable ( ADSHANDLE hIndex, UNSIGNED16 *pbNullable ); |
hIndex (I) |
Handle of index order of interest. |
pbNullable (O) |
Return True if it is a nullable index. |
AdsIsNullable determines whether or not an index order was created on a nullable key. A nullable key is one that can evaluate to NULL.
Note AdsIsIndexNullable can only be called on indexes of ADS_VFP tables.
ulRetCode = AdsIsIndexNullable( hIndex, &usNullable );
See Also