? declare @mouth int
? --declare @start datetime
? --declare @end datetime
? declare @start nvarchar(20)
? declare @end nvarchar(20)
? declare @str nvarchar(3000)
? declare @sql nvarchar(3000)

? set @mouth=1
? while @mouth<=12
? begin
??
?? if @mouth=12
?? begin
??set @start='2011-'+STR(@mouth)+'-1'
??--set @start=cast(@str as datetime)
??set @end='2012-'+STR(@mouth)+'-1'
??--set @end=cast(@str as datetime)
?? end
?? else
?? begin
??set @start='2011-'+ltrim(rtrim(STR(@mouth)))+'-1'
??--set @start=cast(@str as datetime)
??set @end='2011-'+ltrim(rtrim(STR(@mouth+1)))+'-1'
??--set @end=cast(@str as datetime)
?? end
??
?? set @sql=N'select '+ltrim(rtrim(cast(@mouth as CHAR)))+' as ''月份'',count(1) as ' '單數(shù)'',SUM(amount) as ''金額'' FROM [szjdw].[dbo].[mf_order] where cop_id=''DGJDW'' and createdt> '' '+@start+''' and createdt< '''+@end+''''
?? ?? select @sql
?? ?? --exec(@sql)
?? set @mouth=@mouth+1
? end
? go

不知道為什么，這么寫就對了的------MSSQL引號和時間日期