AdsGetIndexExpr

Advantage Client Engine

Retrieves the index key expression of this index order.

Syntax

UNSIGNED32

AdsGetIndexExpr (ADSHANDLE hIndex,

UNSIGNED8 *pucKeyExpr,

UNSIGNED16 *pusLen);

Parameters

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.

Remarks

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.

Example

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See Also

AdsOpenIndex

AdsCreateIndex

AdsIsExprValid

AdsEvalTestExpr