Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

ÇóÒ»¸ösql²éѯÓï¾ä - MS-SQL Server / »ù´¡Àà

A£¬ id, attributes
  1£¬ 1001,12;1002,45
  2, 1002,14;1003,54
B, id,name
  1001,ÎÞµÐ
  1002£¬Èõ
  1003£¬Ç¿º·
AÖÐattributes×Ö¶ÎÊÇÓжà¸öBÊý¾Ý±íµÄidºÍÖµ×é³ÉµÄ£¬

ÏÖÔÚÎÒÏëÔÚselect,µÄʱºò°ÑËûµÄnameºÍÖµÒ»ÆðÏÔʾ£»
  1£¬ÎÞµÐ,12;Èõ,45
  2, Èõ,14;Ç¿º·,54

Óï¾ä¸ÃÔõôд

SQL code:
left join


SQL code:
--> Éú³É²âÊÔÊý¾Ý±í: [A]
IF OBJECT_ID('[A]') IS NOT NULL
DROP TABLE [A]
GO
CREATE TABLE [A] ([id] [int],[attributes] [nvarchar](20))
INSERT INTO [A]
SELECT '1','1001,12;1002,45' UNION ALL
SELECT '2','1002,14;1003,54'

--> Éú³É²âÊÔÊý¾Ý±í: [B]
IF OBJECT_ID('[B]') IS NOT NULL
DROP TABLE [B]
GO
CREATE TABLE [B] ([id] [int],[name] [nvarchar](10))
INSERT INTO [B]
SELECT '1001','ÎÞµÐ' UNION ALL
SELECT '1002','Èõ' UNION ALL
SELECT '1003','Ç¿º·'

--SELECT * from [A]
--SELECT * from [B]

-->SQL²éѯÈçÏÂ:
IF OBJECT_ID('[fn_test]') IS NOT NULL
DROP FUNCTION [fn_test]
GO
CREATE FUNCTION [fn_test](
@S VARCHAR(200)
)RETURNS VARCHAR(200)
AS
BEGIN
SELECT @S=REPLACE(@S,LTRIM([id]),NAME) from B
RETURN @S
END
GO

SELECT id,[attributes]=dbo.[fn_test]([attributes]) from A
/*
id


Ïà¹ØÎÊ´ð£º

SQLÈçºÎÓÅ»¯ÎÊÌâ - MS-SQL Server / ÒÉÄÑÎÊÌâ

½ñÌì×öÁËÒ»¸ö´æ´¢¹ý³Ì   »·¾³ÊÇSQL2000Êý¾Ý¿â  
´óÖÂÈçÏÂ
½¨Á¢ÁÙʱ±í
¶¨ÒåÔ±¹¤Óαê
        Ñ­»·Ô±¹¤£¨ÊôÓÚ1¸ö¹«Ë¾)  
        ......

Çë½ÌSQLÓï¾ä²éѯÎÊÌ⣿ - MS-SQL Server / »ù´¡Àà

ÎÒÏë²éѯ³öÿÌìÊý¾ÝµÄ×î´óµÄÒ»¸öÖµ¡£±íµÄ¸ñʽÈçÏÂ
±íÃû: hisdata
×Ö¶Î ±àºÅ Öµ ״̬ ʱ¼ä  
  Id value state dattime  
  101 32.3 0 ......

mysqlÇøÃ»¸ßÊÖ - MS-SQL Server / »ù´¡Àà

ÎÒ¾õµÃmysqlºÍsqlserverÓй²Í¬µÄµØ·½£º
ÓиöÎÊÌâÊǹØÓÚ±íµÄËøÎÊÌ⣺
½ø³ÌA ½ø³ÌB
select * from user where id in lock share mode£¨¹²ÏíËø)
&nb ......

ÇóÒ»ÌõSQLÓï¾ä - MS-SQL Server / Ó¦ÓÃʵÀý

Ô­SQLÓï¾äSQL code:

SELECT t6.FName '²Ù×÷¹¤',t1.FDate 'ÈÕÆÚ',t5.FName 'ÖÆµ¥ÈË',t3.FName 'É豸',t4.FName '°àÖÆ',
t7.FBillNo '¹¤ÒÕÖ¸Áîµ¥ºÅ',t8.FName '¸Úλ',t2. ......

SQL·ÖÒ³ÓëOracle·ÖÒ³µÄÒÉÎÊ£¿ - Java / Web ¿ª·¢

ÕâÀïÏëÁ˽âÏ£¬¹ØÓÚSQL ServerÖзÖÒ³ºÍOracleÖзÖÒ³£»
ƽ³£Ð´Ó¦ÓóÌÐòµÄʱºò£¬±ÈÈçÓõÄÓïÑÔÊÇJava£¬ÓиöÁбíÒ³Ãæ£¬ÐèÒª¶ÔÊý¾Ý·ÖÒ³ÏÔʾ£»
ÕâÀïÒª·ÖÒ³ÄѵÀ²»ÐèÒª½èÖúJava£¬¶øÖ±½ÓsqlÄÜÖªµÀ·ÖÒ³Âð£¬ÆðÂëÒ²Òª´«¸öÒ³Âë½ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ