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

Sql Server ºÍ Access ²Ù×÷Êý¾Ý¿â½á¹¹SqlÓï¾ä

н¨±í£º
create table [±íÃû]
(
[×Ô¶¯±àºÅ×Ö¶Î] int IDENTITY (1,1) PRIMARY KEY ,
[×Ö¶Î1] nVarChar(50) default 'ĬÈÏÖµ' null ,
[×Ö¶Î2] ntext null ,
[×Ö¶Î3] datetime,
[×Ö¶Î4] money null ,
[×Ö¶Î5] int default 0,
[×Ö¶Î6] Decimal (12,4) default 0,
[×Ö¶Î7] image null ,
)
ɾ³ý±í£º
Drop table [±íÃû]
²åÈëÊý¾Ý£º
INSERT INTO [±íÃû] (×Ö¶Î1,×Ö¶Î2) VALUES (100,'51WINDOWS.NET')
ɾ³ýÊý¾Ý£º
DELETE from [±íÃû] WHERE [×Ö¶ÎÃû]>100
¸üÐÂÊý¾Ý£º
UPDATE [±íÃû] SET [×Ö¶Î1] = 200,[×Ö¶Î2] = '51WINDOWS.NET' WHERE [×Ö¶ÎÈý] = 'HAIWA'
ÐÂÔö×ֶΣº
ALTER TABLE [±íÃû] ADD [×Ö¶ÎÃû] NVARCHAR (50) NULL
ɾ³ý×ֶΣº
ALTER TABLE [±íÃû] DROP COLUMN [×Ö¶ÎÃû]
ÐÞ¸Ä×ֶΣº
ALTER TABLE [±íÃû] ALTER COLUMN [×Ö¶ÎÃû] NVARCHAR (50) NULL
ÖØÃüÃû±í£º(Access ²»Ö§³Ö)
EXECUTE sp_rename '±íÃû', 'бíÃû', 'OBJECT'
н¨Ô¼Êø£º
ALTER TABLE [±íÃû] ADD CONSTRAINT Ô¼ÊøÃû CHECK ([Ô¼Êø×Ö¶Î] <= '2000-1-1')
ɾ³ýÔ¼Êø£º
ALTER TABLE [±íÃû] DROP CONSTRAINT Ô¼ÊøÃû
н¨Ä¬ÈÏÖµ
ALTER TABLE [±íÃû] ADD CONSTRAINT ĬÈÏÖµÃû DEFAULT '51WINDOWS.NET' FOR [×Ö¶ÎÃû]
ɾ³ýĬÈÏÖµ
ALTER TABLE [±íÃû] DROP CONSTRAINT ĬÈÏÖµÃû


Ïà¹ØÎĵµ£º

SQLÓÅ»¯ Ë÷Òý

(Ò»)ÉîÈëdz³öÀí½âË÷Òý½á¹¹
¡¡¡¡Êµ¼ÊÉÏ£¬Äú¿ÉÒÔ°ÑË÷ÒýÀí½âΪһÖÖÌØÊâµÄĿ¼¡£Î¢ÈíµÄSQL SERVERÌṩÁËÁ½ÖÖË÷Òý£º¾Û¼¯Ë÷Òý(clustered index£¬Ò²³Æ¾ÛÀàË÷Òý¡¢´Ø¼¯Ë÷Òý)ºÍ·Ç¾Û¼¯Ë÷Òý(nonclustered index£¬Ò²³Æ·Ç¾ÛÀàË÷Òý¡¢·Ç´Ø¼¯Ë÷Òý)¡£ÏÂÃæ£¬ÎÒÃǾÙÀýÀ´ËµÃ÷һϾۼ¯Ë÷ÒýºÍ·Ç¾Û¼¯Ë÷ÒýµÄÇø±ð£º
¡¡¡¡Æäʵ£¬ÎÒÃǵĺºÓï×ÖµäµÄÕýÎı ......

sql server 2008 µÄ°²×°

¸ø´ó¼Ò¸öѧϰÊý¾Ý¿âµÄÈí¼þ°É£¬sql server 2008£¬Õâ¸öÊÇ΢Èí¹«Ë¾µÄ×÷Æ·£¬²»´í£¬Ó¦¸ÃÊǷdz£²»´í£¬ÔÚµçÄÔÉϰ²×°OracleÊý¾Ý¿âµÄ»°£¬ÄǸö±È½Ï´ó£¬¶øÇÒÔÚÍøÉÏÒ²²»ºÃÏÂÔØ£¬ÒªÊÇÁ¬½Óµ½Ñ§Ð£·þÎñÆ÷µÄ»°£¬Ò²ÊDz»¿ÉÄܵ쬳ý·Ç´ó¼Ò¾­³£È¥»ú·¿ÉÏ»ú£¬µ«ÊÇÄǸöÒ²²»¿ª£¬·Ï»°²»¶à˵ÁË£¬´ó¼Òȥ΢Èí¹ÙÍøÏÂÔØÒ»¸ösql server 2008µÄÊÔÓðæµÄ°²×°ÎÄ ......

ZZʹÓÃSQL Server´æ´¢ASP.NET Session±äÁ¿

´´½¨ºÍÅäÖÃASP.NET Session״̬Êý¾Ý¿â
ÔÚ»ùÓÚNLB£¨ÍøÂç¸ºÔØÆ½ºâ£©»·¾³ÏµÄASP.NET WebÓ¦ÓóÌÐò¿ª·¢£¬ÎÒÃÇÐèÒª½«Session´æ´¢ÔÚÊý¾Ý¿âÖй©¶à¸öWebÓ¦ÓóÌÐòµ÷Óã¬ÒÔÏÂΪÅäÖ÷½·¨¼°×¢ÒâÊÂÏî¡£
1.´´½¨ÓÃÓÚ´æ´¢ASP.NET SessionµÄÊý¾Ý¿â£¨Ô¶³Ì¡¢±¾µØ½Ô¿É£¬Ê¹ÓÃÊý¾Ý¿âÓû§Éí·ÝÈÏÖ¤£©
ÔÚWindows\Microsoft.NET\Framework/V2.0.507 ......

ms sql server ´´½¨Óû§


SQL code
´´½¨½ÇÉ«£¬Óû§£¬È¨ÏÞ
/*--ʾÀý˵Ã÷
ʾÀýÔÚÊý¾Ý¿âpubsÖд´½¨Ò»¸öÓµÓбíjobsµÄËùÓÐȨÏÞ¡¢ÓµÓбítitlesµÄSELECTȨÏ޵ĽÇÉ«r_test
Ëæºó´´½¨ÁËÒ»¸öµÇ¼l_test£¬È»ºóÔÚÊý¾Ý¿âpubsÖÐΪµÇ¼l_test´´½¨ÁËÓû§ÕË»§u_test
ͬʱ½«Óû§ÕË»§u_testÌí¼Óµ½½ÇÉ«r_testÖУ¬Ê¹Æäͨ¹ýȨÏ޼̳лñÈ¡ÁËÓë½ÇÉ«r_t ......

¾­µäSQLÓï¾ä

asc °´ÉýÐòÅÅÁÐ
desc °´½µÐòÅÅÁÐ
ÏÂÁÐÓï¾ä²¿·ÖÊÇMssqlÓï¾ä£¬²»¿ÉÒÔÔÚaccessÖÐʹÓá£
SQL·ÖÀࣺ
DDL—Êý¾Ý¶¨ÒåÓïÑÔ(CREATE£¬ALTER£¬DROP£¬DECLARE)
DML—Êý¾Ý²Ù×ÝÓïÑÔ(SELECT£¬DELETE£¬UPDATE£¬INSERT)
DCL—Êý¾Ý¿ØÖÆÓïÑÔ(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
Ê×ÏÈ,¼òÒª½éÉÜ»ù´¡Óï¾ä£º
1¡¢ËµÃ÷£º´´½¨Êý ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ