我有一个表,在 BIT 概念中有 4 组 25 列。实际上字段是smallint,但它的数据是0或1。
这是我的代码,它试图获取第一组 25 列的总数。
Declare @rows int
, @ID uniqueidentifier
, @LocTotal bigint
select @rows = ( select count(*) from #t1 )
while @rows > 0
begin
print @rows
-- get that rowID
select @ID = (select top 1 recid from #t1)
select @LocTotal =
(select top 1
case when cbHPILoc1 = 1 then 1 else 0 end +
case when cbHPILoc2 = 1 then 2 else 0 end +
case when cbHPILoc3 = 1 then 4 else 0 end +
< snip >
case when cbHPILoc25 = 1 then 16777216 else 0 end
as Total
from dbo.MyTest_BitMap
where RecKey = @ID
)
print @ID
print @LocTotal
我的输出:
(5 row(s) affected)
5
67A16306-B27D-4882-88A2-1146CBAAA8D9
(1 row(s) affected)
4
F94929B9-3DA7-4AA3-96F6-728EF025B21C
我没有得到总计@LocTotal
TIA