SQL Engine Parse Tree API : SQL Engine Parse Tree functions reference : damex_ describeValExpEx

damex_ describeValExpEx

This function is used to retrieve the additional details of the value expression, such as the alias name of the value expression used in select list.

int damex_describeValExpEx(
    DAM_HVALEXP hValExp,
    char * sAsColName,
    int * iSign);

int damex_describeValExpExW(
    DAM_HVALEXP hValExp,
    OAWCHAR * AsColName,
    int * piSign);

Table 204. Parameters for damex_describeValExpEx
Parameter	Type	Description
IN
hVal	DAM_HVAL	Value handle.
OUT
sAsColName	char * OAWCHAR *	Alias name of the value expression.
piSign	int *	Sign of the values expression. This field is currently not used.
RETURN
	int	DAM_SUCCESS - on success DAM_FAILURE - on failure