Advantage Client Engine
Retrieves the index key expression of this index order.
UNSIGNED32 |
AdsGetIndexExpr (ADSHANDLE hIndex, UNSIGNED8 *pucKeyExpr, UNSIGNED16 *pusLen); |
hIndex (I) |
Handle of index order of interest. |
pucKeyExpr (O) |
Returns the index order key expression in this buffer. |
pusLen (I/O) |
Length of given buffer on input, length of returned data on output. |
The index expression returned by AdsGetIndexExpr is the expression that is evaluated against records in the table to generate index keys. This expression can evaluate to a numeric value, a string value, a date, or a logical.