0
如何确保即使没有数据存在,它也会始终返回结果集?未返回结果集
现在如果#TMP_SUMMARY1
没有返回任何行。
我如何能确保这下面的查询返回我的表没有行,而不仅仅是告诉我下面这个消息,并没有结果选项卡此消息]选项卡。
(0行(S)的影响)
这不返回在这种情况下设置的结果是造成了我的噩梦!
IF (@SUMMARY = 'Agent Summary')
BEGIN
DECLARE @cols1 AS NVARCHAR(MAX),
@colSum1 AS NVARCHAR(MAX),
@query1 AS NVARCHAR(MAX)
select @cols1 = STUFF((SELECT distinct ',' + QUOTENAME(Agent)
from #TMP_SUMMARY1
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)') ,1,1,'')
print @cols1
select @colSum1 = STUFF((SELECT distinct ', Sum(' + QUOTENAME(Agent)+') as ' +QUOTENAME(Agent)
from #TMP_SUMMARY1
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)') ,1,1,'')
print @colSum1
set @query1 = 'select
case when [PAYMENT TYPE] is null then ''*GRAND TOTAL'' else [Credit/Debit] end [Credit/Debit],
case when [PAYMENT TYPE] is null then '''' else [PAYMENT TYPE] end [PAYMENT TYPE],
'[email protected] +'
from
(
select [Agent] ,
[Credit/Debit],
[PAYMENT TYPE],
value
from #TMP_SUMMARY2
unpivot
(
value
for [Credit/Debit] in ([Amount Credit], [Amount Debit])
) unpiv
) src
pivot
(
sum(value)
for agent in ('[email protected]+')
) piv
group by GROUPING SETS ([Credit/Debit], [PAYMENT TYPE]), ([Credit/Debit])'
execute(@query1)
END
这不回答你的问题(所以我在这里把它当作一个注释),但你真的应该考虑使用'sp_executesql'而不是'EXECUTE',让您在动态SQL内有针对SQL注入防护查询。 http://www.sommarskog.se/dynamic_sql.html#sp_executesql – 2013-03-14 13:31:28