本文介绍了如何在sql中编写案例？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
select case when h.VVID<=15 then COUNT(h.fs) end as [<=15],
case when h.VVID between 16 and 18 then COUNT(h.fs) end as [16 - 18],
case when h.VVID between 19 and 21 then COUNT(h.fs) end as [19 - 21],
case when h.VVID between 22 and 24 then COUNT(h.fs) end as [22 - 24],
case when h.VVID>=25 then COUNT(h.fs) end as [>=25]
from
(
select t.fs,sum(t.VVID) VVID,sum(t.VID) VID,sum(t.ID) ID from
(
select dr.C_FS_Code fs,
case when ds.c_doc_grade='G00001' then COUNT(distinct ds.C_DSC_Code) end as [VVID],
case when ds.c_doc_grade='G00002' then COUNT(distinct ds.C_DSC_Code) end as [VID],
case when ds.c_doc_grade='G00003' then COUNT(distinct ds.C_DSC_Code) end as [ID]
from tbl_dwr dr
join tbl_dwr_details ds on ds.N_Srno=dr.N_Srno
join Tbl_FS_Mst fs on fs.C_Code=dr.C_FS_Code
join Tbl_Doc_Stock_Chem_Add_Mst sd on sd.C_Code=ds.C_DSC_Code
where MONTH(dr.D_Date_Report) in (3,4) and YEAR(dr.D_Date_Report)=2015
and fs.N_Type=1
--and dr.C_FS_Code='MSR001'
group by dr.C_FS_Code,ds.c_doc_grade
)t
group by t.fs
order by t.fs
)h
执行此查询后会收到如下错误
消息1033，级别15，状态1，行34
ORDER BY子句在视图，内联函数，派生表，子查询和公用表表达式中无效，除非TOP或FOR XML也是指定的。
请给出解决方案...
after executing this query am getting error like in below
Msg 1033, Level 15, State 1, Line 34
The ORDER BY clause is invalid in views, inline functions, derived tables, subqueries, and common table expressions, unless TOP or FOR XML is also specified.
please give solution for this...
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