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MSSQL 4表联查,子查询,函数统计,分组条件查询综合应用实例

 1 SELECT  2  [UserName] 3 ,[Yhxm] 4 ,[Qx] 5 ,[Phone] 6 ,[Number] = COUNT([UserName]) 7 FROM  8 (SELECT  9      [UserName]   = A.[username] 10     ,[Yhxm]          = B.[xm]          11     ,[Qx]          = D.[P_Power]12     ,[Phone]      = B.[dh] 13     ,[DayCount]   = (SELECT COUNT(*) FROM [Caihuashun_FuJian_T] WHERE (SELECT (DATEDIFF(DAY,[F_bxsj],GETDATE())))   = 0) 14     ,[MonthCount] = (SELECT COUNT(*) FROM [Caihuashun_FuJian_T] WHERE (SELECT (DATEDIFF(MONTH,[F_bxsj],GETDATE()))) = 0)  15 FROM  16 [Caihuashun_UserInfo_T] AS [A]17 LEFT JOIN 18 [Caihuashun_Vita_T] AS [B]19 ON 20 A.[username] = B.[username]21 LEFT JOIN 22 [Caihuashun_FuJian_T] AS [C]23 ON 24 C.[F_jxy] = A.[username]25 LEFT JOIN 26 [Caihuashun_Authority_T] AS [D]27 ON 28 D.[P_id] = A.[power]) 29 AS [A]30 GROUP BY [UserName],[Yhxm],[Qx],[Phone]

因为group by不能使用 where 所以我想查询UserName=452087948的那么只要在后面加上HAVING UserName =‘452087948‘ 那么查询的结果如下