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

SQL²Ù×÷È«¼¯

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¨Êý¾Ý¿â
CREATE DATABASE database-name
2¡¢ËµÃ÷£ºÉ¾³ýÊý¾Ý¿â
drop database dbname
3¡¢ËµÃ÷£º±¸·Ýsql server
--- ´´½¨ ±¸·ÝÊý¾ÝµÄ device
USE master
EXEC
sp_addumpdevice 'disk', 'testBack', 'c:\mssql7backup\MyNwind_1.dat'
--- ¿ªÊ¼
±¸·Ý
BACKUP DATABASE pubs TO testBack
4¡¢ËµÃ÷£º´´½¨Ð±í
create table
tabname(col1 type1 [not null] [primary key],col2 type2 [not null],..)
¸ù¾ÝÒÑÓÐµÄ±í´´½¨ÐÂ±í£º
A£ºcreate table tab_new like tab_old (ʹÓÃ¾É±í´´½¨Ð±í)
B£ºcreate
table tab_new as select col1,col2… from tab_old definition only
5¡¢ËµÃ÷£ºÉ¾³ýбídrop table tabname
6¡¢ËµÃ÷£ºÔö¼ÓÒ»¸öÁÐ
Alter table tabname add
column col type
×¢£ºÁÐÔö¼Óºó½«²»ÄÜɾ³ý¡£DB2ÖÐÁмÓÉϺóÊý¾ÝÀàÐÍÒ²²»Äܸı䣬ΨһÄܸıäµÄÊÇÔö¼ÓvarcharÀàÐ͵ij¤¶È¡£
7¡¢ËµÃ÷£ºÌí¼ÓÖ÷¼ü£º Alter table tabname add primary key(col)
˵Ã÷£ºÉ¾³ýÖ÷¼ü£º Alter table
tabname drop primary key(col)
8¡¢ËµÃ÷£º´´½¨Ë÷Òý£ºcreate [unique] index idxname on
tabname(col….)
ɾ³ýË÷Òý£ºdrop index idxname
×¢£ºË÷ÒýÊDz»¿É¸ü¸ÄµÄ£¬Ïë¸ü¸Ä±ØÐëɾ³ýÖØÐ½¨¡£
9¡¢ËµÃ÷£º´´½¨ÊÓͼ£ºcreate view viewname as select statement
ɾ³ýÊÓͼ£ºdrop view
viewname
10¡¢ËµÃ÷£º¼¸¸ö¼òµ¥µÄ»ù±¾µÄsqlÓï¾ä
Ñ¡Ôñ£ºselect * from table1 where ·¶Î§
²åÈ룺insert into table1(field1,field2) values(value1,value2)
ɾ³ý£ºdelete
from table1 where ·¶Î§
¸üУºupdate table1 set field1=value1 where ·¶Î§
²éÕÒ£ºselect * from table1 where field1 like ’%value1%’ ---likeµÄÓï·¨ºÜ¾«Ã²é×ÊÁÏ!
ÅÅÐò£ºselect * from table1 order by field1,field2 [desc]
×ÜÊý£ºselect count *
as totalcount from table1
ÇóºÍ£ºselect sum(field1) as sumvalue from table1
ƽ¾ù£ºselect avg(field1) as avgvalue from table1
×î´ó£ºselect max(field1) as
maxvalue from table1


Ïà¹ØÎĵµ£º

sql 2005 ´æ´¢¹ý³Ì·ÖÒ³ java ´úÂë

 create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',         
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ ......

JavaÁ¬½ÓSQL Server 2000

Êý¾Ý¿â²Ù×÷ÏÖÔÚÊÇÏîÄ¿¿ª·¢µÄ¸ù±¾£¬Ñ§Ï°JavaÊ×ÏÈÓ¦¸Ãѧ»áÔõôÑùÁ¬½ÓÊý¾Ý¿â£¬ÓÃJavaÁ¬½ÓÊý¾Ý¿â¿É²»ÏñÓÃDelphiÕâÀ๤¾ßÄÇÑùÉ輸¸öÊôÐÔ¾ÍOK£¬Ëµ¼òµ¥Ò²¼òµ¥£¬Ëµ¸´ÔÓ£¬ÆäʵҲͦ¸´Ôӵ쬶øÇÒºÜÂé·³£¬Èç¹ûÊdzõѧ£¬¸ù±¾²»Äܱ£Ö¤µÚÒ»´Î¾ÍÁ¬½Ó³É¹¦£¬ÏÂÃæÒÔSQL Server 2000ΪÀý£¬ËµËµJavaÁ¬½ÓÊý¾Ý¿âµÄ»ù±¾·½·¨£¬Ò²¼Ç¼һÏÂÐĵá£
1¡¢Ï ......

SQL²Ù×÷È«¼¯

        ×î½üÕýÔÚѧϰÓÃSQL×öһЩ¶«Î÷£¬ÔÚÒ»¸öÌû×ÓÉÏÃæ¿´µ½ÕâÆª¶ÔºÜÓаïÖú£¬¾Í×ªÔØµ½ÁË×Ô¼ºµÄBlogÀϣÍû¶Ô´ó¼ÒÒ²ÓаïÖú¡£
SQL²Ù×÷È«¼¯
ÏÂÁÐÓï¾ä²¿·ÖÊÇMssqlÓï¾ä£¬²»¿ÉÒÔÔÚaccessÖÐʹÓá£
SQL·ÖÀࣺ
DDL—Êý¾Ý¶¨ÒåÓïÑÔ(CREATE£¬ALTER£¬DROP£¬DECLARE)
DML—Êý¾Ý²Ù× ......

ÈçºÎдÓÐЧÂʵÄSQL²éѯ


[×ªÔØ]http://www.cnblogs.com/cn_wpf/£¬·Ç³£¸ÐлNineteen@newsmth µÄ·Ö·ÖÏí¡£ 
дÓÐЧÂʵÄSQL²éѯ£¨I£©
´óÐÍϵͳµÄÉú²ú»·¾³£¬Ò»°ãÇé¿öÏ£¬ÎÒÃÇÆÀ¼ÛÒ»Ìõ²éѯÊÇ·ñÓÐЧÂÊ£¬¸ü¶àµÄÊǹØ×¢Âß¼­IO(ÖÁÓÚΪʲô£¬»ØÍ·²¹Ò»Æª)¡£ÎÒÃdz£Ëµ£¬“Òª½¨±ëº·µÄË÷Òý”¡¢“Ҫд¸ßЧµÄSQL”£¬Æäʵ×îÖÕÄ¿µÄ¾ÍÊÇÔÚÏà ......

SQLµ÷ÓÅ

SQL Server ²éѯ
²éѯµÄʱºòÓ¦¸Ã¾¡Á¿°´ÕÕ¸´ºÏË÷ÒýÖеÄ˳ÐòÀ´×öÌõ¼þ²éѯ£»£¨±ÈÈçIXCÖÐspInterActiveInstance_GetByIDToStatÌõ¼þand ProcessState<>99µÄλÖã©£»
Èç¹ûÔÚ³ÌÐòÖÐÓÐFor»òÕßÊÇForeach£¬ÔÚ´æ´¢¹ý³ÌÖÐÓÖÓÐIF Exists£¬ÄǾÍÒª¿´ÊÇ·ñ¿ÉÒÔÔÚ±íÖмÓÈ븴ºÏË÷ÒýÁË£¬IF Not Exists¿ÉÒÔת»»ÎªIF ExistsÀ´Ê¹ÓÃË÷Òý£» ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ