有表4张
建表和插入数据sql
DECLARE @p_Building TABLE ( id INT , BidName NVARCHAR(20) ); DECLARE @p_Room TABLE ( id INT , RoomNo INT , RoomArea INT , Bidid INT ); DECLARE @p_Customer TABLE ( id INT , CstName NVARCHAR(20) , CstTel VARCHAR(20) , CstSex NVARCHAR(5) ); DECLARE @p_Cst2Room TABLE ( id INT , RoomID INT , CstID INT , CstNO INT ); INSERT INTO @p_Building( id, BidName ) VALUES ( 1, N'四栋' ); INSERT INTO @p_Building( id, BidName ) VALUES ( 2, N'一栋' ); INSERT INTO @p_Building( id, BidName ) VALUES ( 3, N'二栋' ); INSERT INTO @p_Building( id, BidName ) VALUES ( 4, N'三栋' ); INSERT INTO @p_Room( id, RoomNo, RoomArea, Bidid ) VALUES ( 1, 101, 80, 1) INSERT INTO @p_Room( id, RoomNo, RoomArea, Bidid ) VALUES ( 2, 102, 80, 2) INSERT INTO @p_Room( id, RoomNo, RoomArea, Bidid ) VALUES ( 3, 103, 99, 3) INSERT INTO @p_Room( id, RoomNo, RoomArea, Bidid ) VALUES ( 4, 104, 87, 4) INSERT INTO @p_Customer( id, CstName, CstTel, CstSex )VALUES ( 1,N'张三','',N'') INSERT INTO @p_Customer( id, CstName, CstTel, CstSex )VALUES ( 2,N'李四','',N'') INSERT INTO @p_Customer( id, CstName, CstTel, CstSex )VALUES ( 3,N'王五','',N'') INSERT INTO @p_Customer( id, CstName, CstTel, CstSex )VALUES ( 4,N'赵六','',N'') INSERT INTO @p_Cst2Room( id, RoomID, CstID, CstNO )VALUES ( 1,1,1,1) INSERT INTO @p_Cst2Room( id, RoomID, CstID, CstNO )VALUES ( 2,1,2,2) INSERT INTO @p_Cst2Room( id, RoomID, CstID, CstNO )VALUES ( 3,1,3,3) INSERT INTO @p_Cst2Room( id, RoomID, CstID, CstNO )VALUES ( 4,1,4,4)
要得到下面结果:
执行以下sql:
SELECT A.BidName AS [楼栋名称] , B.RoomNo AS [房号] , ( SELECT C.CstName + ',' FROM @p_Customer AS C INNER JOIN @p_Cst2Room AS D ON C.id = D.CstID AND D.RoomID = B.id FOR XML PATH('') ) AS [客户名称] , B.RoomArea AS [房间面积] FROM @p_Building AS A INNER JOIN @p_Room AS B ON A.id = B.Bidid; --AND A.id=1
要得到以下结果
SELECT A.BidName AS [楼栋名称] , CHARINDEX(SUBSTRING(A.BidName, 1, 1), '一二三四五六七八九十') AS OrderNum , B.RoomNo AS [房号] , B.RoomArea AS [房间面积] FROM @p_Building AS A INNER JOIN @p_Room AS B ON A.id = B.Bidid ORDER BY CHARINDEX(SUBSTRING(A.BidName, 1, 1), '一二三四五六七八九十');
来源:https://www.cnblogs.com/zhyue93/p/sql_sort.html