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DDL—Êý¾Ý¶¨ÒåÓïÑÔ(Create£¬Alter£¬Drop£¬DECLARE)
DML—Êý¾Ý²Ù×ÝÓïÑÔ(Select£¬Delete£¬Update£¬Insert)
DCL—Êý¾Ý¿ØÖÆÓïÑÔ(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
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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],..)
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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÷£ºÉ¾³ýбí
drop 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
×îС£ºselect min(field1) as minvalue from table1
11¡¢ËµÃ÷£º¼¸¸ö¸ß¼¶²éѯÔËËã´Ê
A£º UNION ÔËËã·û
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root@xmlinuxer-server:/media/WinF/LAMP#groupadd mysql
root@xmlinuxer-server:/media/WinF/LAMP#useradd -g mysql mysql
root@xmlinuxer-server:/media/WinF/LAMP#tar -zxvf mysql-5.0.33.tar.gz
root@xmlinuxer-server:/media/WinF/LAMP#cd mysql-5.0.33
root@xmlinuxer-server:/media/WinF/LAM ......

ÕýÈ·ºÏÀíµÄ½¨Á¢MYSQLÊý¾Ý¿âË÷Òý


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linuxÏÂmysql5°²×°ÈÕÖ¾

step 1)ÏÂÔØÔ´´úÂë°üµ½±¾µØLinuxÖ÷»ú£¬È»ºó½âѹËõ£¬½øÈë¸ÃĿ¼£¬½øÐÐÅäÖ㬱àÒëºÍ°²×°
ÏÂÔØmysql5Ô´Âëmysql-5.0.18.tar.gzµ½Ä¿Â¼/usr/local
cd /usr/local
tar xzvf mysql-5.0.18.tar.gz
cd mysql-5.0.18
./configure --prefix=/usr/local/mysql
make && make install
make¹ý³Ì»¨µÄʱ¼ä±È½Ï³¤
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MySql³£ÓÃÃüÁî

1. Êý¾Ý¿â
Çл»Êý¾Ý¿â£º  use mydb
2. ʼþ
 ²é¿´Ê¼þ£º   show events
 Æô¶¯µ÷¶ÈÆ÷:  set global event_scheduer = 1;
 ²é¿´ÊÇ·ñÆô¶¯£º show variables like 'event_scheduler';
3. ±¸·Ý
ÔÚadministatorÖеÄbackupÖÐÎÞ·¨±¸·ÝÊý¾Ý¿âµÄʼþ¡£ÐèÒªÊÖ¶¯½«´´½¨Ê¼þµÄ½Å±¾Ìí¼Óµ½sql±¸ ......
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