damex_describeCaseValExp

This function is used to retrieve the description of conditional CASE expression. The function returns a description of two formats for CASE expression, as follows:

CASE input_expression
    WHEN when_expression THEN result_expression
        [...]
    [
        ELSE else_result_expression
    ]
END

Syntax

int damex_describeCaseValExp(
     DAM_HCASE_VALEXP hCaseValExp,
    DAM_HVALEXP * phInputValExp,
    DAM_HCASE_ELEM_LIST * phCaseElemList,
    DAM_HVALEXP * phElseValExp)

Table 185. Parameters for damex_describeCaseValExp
Parameter	Type	Description
IN
hCaseValExp	DAM_HCASE_VALEXP	Case value expression handle.
OUT
phInputValExp	DAM_HVALEXP *	Handle to the input expression This value is set only when the CASE is a simple expression.
phCaseElemList	DAM_HCASE_ELEM_LIST	Handle to the input expression. This value is set only when the CASE is a simple CASE expression.
phElseValExp	DAM_HVALEXP	Handle to the WHEN-THEN expression list. Use damex_getFirstCaseElem and damex_getNextCaseElem to navigate the list.
RETURN
	int	DAM_SUCCESS - on success DAM_FAILURE - on failure

damex_describeCaseValExp

Syntax

See also