SQL Server 结果集循环处理的 避免游标处理方法

结果集循环,避免使用游标的方法(游标的性能一般不好):

创建一个临时表:

declare @tempTable table(ID int identity(1,1), unitID int, unitState int, partID bigint)
insert into @tempTable
			select distinct u.id, u.UnitStateID, u.PartID
				from ffUnit u
				join ffUnitDetail ud on u.id =  ud.unitID 
			where ud.InmostPackageID = @packageID

declare @i int
declare @j int
set @i = 0

select @j = MAX(ID) from @tempTable
begin tran---Rex
while @i < @j begin
	set @i = @i+1 
	set @UnitID = null
	set @CurrUnitStateID = null
	set @PartID = null
 
	select @UnitID=unitID, @CurrUnitStateID = unitState, @PartID = partID from @tempTable where ID = @i
	exec @ret = objUNTCheckRouting @UnitID, @xmlPart, @xmlStation
	if @ret <> 0 or @@ERROR >0
	begin
		if @@TRANCOUNT = 1 rollback else commit 
		return @ret
	end
 
end

commit tran



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