小弟不才,试问这样的语句是否可以简化?
程序代码:
---查询库存品种数 select COUNT(distinct ML.SPBH)as 库存品种数 from ( SELECT SPBH,SUM(SL) AS RCKC FROM (SELECT SPBH,SUM(SL) AS SL FROM RKD2 WHERE DJLX='采购入库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH UNION ALL SELECT SPBH,SUM(SL)*-1 AS SL FROM CKD2 WHERE DJLX='零售出库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH) AS KCSL GROUP BY SPBH) as kc left join SPML as ML on kc.SPBH=ML.SPBH where MX='T'and ML.BZQ_TF in('CB','CF','YY')AND KC.RCKC<>'0' UNION ALL select COUNT(distinct ML.SPBH)as 库存品种数 from ( SELECT SPBH,SUM(SL) AS RCKC FROM (SELECT SPBH,SUM(SL) AS SL FROM RKD2 WHERE DJLX='采购入库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH UNION ALL SELECT SPBH,SUM(SL)*-1 AS SL FROM CKD2 WHERE DJLX='零售出库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH) AS KCSL GROUP BY SPBH) as kc left join SPML as ML on kc.SPBH=ML.SPBH where MX='T'and ML.BZQ_TF in('CG','CX')AND KC.RCKC<>'0' UNION ALL select COUNT(distinct ML.SPBH)as 库存品种数 from ( SELECT SPBH,SUM(SL) AS RCKC FROM (SELECT SPBH,SUM(SL) AS SL FROM RKD2 WHERE DJLX='采购入库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH UNION ALL SELECT SPBH,SUM(SL)*-1 AS SL FROM CKD2 WHERE DJLX='零售出库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH) AS KCSL GROUP BY SPBH) as kc left join SPML as ML on kc.SPBH=ML.SPBH where MX='T'and ML.BZQ_TF in('CT','CJ')AND KC.RCKC<>'0' UNION ALL select COUNT(distinct ML.SPBH)as 库存品种数 from ( SELECT SPBH,SUM(SL) AS RCKC FROM (SELECT SPBH,SUM(SL) AS SL FROM RKD2 WHERE DJLX='采购入库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH UNION ALL SELECT SPBH,SUM(SL)*-1 AS SL FROM CKD2 WHERE DJLX='零售出库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH) AS KCSL GROUP BY SPBH) as kc left join SPML as ML on kc.SPBH=ML.SPBH where MX='T'and ML.BZQ_TF in('YP','BJ')AND KC.RCKC<>'0' UNION ALL select COUNT(distinct ML.SPBH)as 库存品种数 from ( SELECT SPBH,SUM(SL) AS RCKC FROM (SELECT SPBH,SUM(SL) AS SL FROM RKD2 WHERE DJLX='采购入库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH UNION ALL SELECT SPBH,SUM(SL)*-1 AS SL FROM CKD2 WHERE DJLX='零售出库' AND YSRQ<=dateadd(day,-1,CONVERT(CHAR(10),GETDATE(),120)) GROUP BY SPBH) AS KCSL GROUP BY SPBH) as kc left join SPML as ML on kc.SPBH=ML.SPBH where MX='T'and ML.BZQ_TF like'X%'AND KC.RCKC<>'0' 就这一条件 ML.BZQ_TF in 不一样,其他都一样,这样的语句还能精简吗 ?
[ 本帖最后由 夜静风轻 于 2013-1-18 12:06 编辑 ]