Question

我有下面存储的prodecure，当我为Gkol传递空值时，我希望将其更改为最小可能的数量（存在于表中），但它不会发生，为什么会这样？

Alter PROCEDURE sp_vUnitsUnitTejariGetFilteredUnitDetail(
    @UnitFB bit,
    @UnitWithCooking bit,
    @MMofidFrom float = null,
    @MMofidTo float = null,
    @GKolFrom float = null,
    @GKolTo float = null
    )
AS
BEGIN
declare @MMofidCalculative bit
declare @GKolCalculative bit

if(@MMofidFrom is null)
    select @MMofidFrom = MIN(MMofid) from vw_PSA_UnitsUnitTejari
if(@MMofidTo is null)
    select @MMofidTo = MAX(MMofid) from vw_PSA_UnitsUnitTejari

if(@GKolFrom is null)
    select @GKolFrom = MIN(GKol) from vw_PSA_UnitsUnitTejari
if(@GKolTo is not null)
    select @GKolTo = MAX(GKol) from vw_PSA_UnitsUnitTejari

Select * from vw_PSA_UnitsUnitTejari 
where UnitTypeID = 1
And UnitStateID = 1
And UnitFB = ISNULL(@UnitFB,UnitFB)
And UnitWithCooking = ISNULL(@UnitWithCooking,UnitWithCooking)
And MMofid between @MMofidFrom and @MMofidTo
And GKol between @GKolFrom and @GKolTo
END

Answer 1

我弄清楚它为什么不起作用，问题出现在最后一个if块

中

if(@GKolTo is not null)

我删除了NOT，一切顺利，谢谢大家

当我在存储过程中更改它时，带有空值的参数不会更改

1 个答案: