Question

DELIMITER $$

DROP FUNCTION IF EXISTS `workplantype`.`FUN_STOCKINVENTRY_CHECK` $$
CREATE FUNCTION `workplantype`.`FUN_STOCKINVENTRY_CHECK` (
PONo1 VARCHAR(20),
PartCode1 VARCHAR(45)
) RETURNS bool
BEGIN
DECLARE diff bool;
set diff=false;
select  if(Remaining_Quantity=0.00, true, false) as diff from tblstockinventory where PONo=PONo1 && PartCode=PartCode1;
return diff;
END $$

DELIMITER ;

如何避免不允许从函数mysql错误返回结果集？

Answer 1

select if(Remaining_Quantity=0.00, true, false) into @diff 
from tblstockinventory 
where PONo=PONo1 AND PartCode=PartCode1;

您可以将IF（）缩减为

select Remaining_Quantity=0.00 into @diff

得到相同的结果

不允许从函数mysql错误返回结果集？

1 个答案: