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1.  ´´½¨Êý¾Ý¿â
Ø  create database Name;
2.  Ñ¡ÔñÊý¾Ý¿â
Ø  use DatabaseName;
3.  Ö±½Óɾ³ýÊý¾Ý¿â£¬²»ÌáÐÑ
Ø  drop database Name;
4.  ɾ³ýÊý¾Ý¿âÇ°£¬ÓÐÌáʾ¡£
Ø  drop database Name;
5.  ÏÔʾËùÓÐÊý¾Ý¿â
Ø  show databases;
6.  Ë¢ÐÂÊý¾Ý¿â
Ø  flush privileges ;
7.  ±¸·ÝÊý¾Ý¿â
Ø  mysqldump -h host -u root -p dbname >dbname_backup.sql;
8.  »Ö¸´Êý¾Ý¿â
Ø  mysqladmin -h myhost -u root -p create dbname;
Ø  mysqldump -h host -u root -p dbname < dbname_backup.sql;
¶þ¡¢    ±í²Ù×÷µÄÃüÁî
1.  ´´½¨±í
Ø  create table Name;
2.  ÏÔʾ±í
Ø  show tables;
3.  ÏÔʾ±í½á¹¹
Ø  describe TableName;
4.  Çå¿Õ±í
Ø  delete from TableName;
5.  ɾ³ý±í
Ø  drop table TableName;
Èý¡¢    Ð޸ıí½á¹¹µÄÃüÁî
1.  ÖØÃüÃû±í
Ø  alter table t1 rename t2;
2.  ±ípositionÔö¼ÓÁÐtest
Ø  alter table position add(test char(10));
3.  ±ípositionÐÞ¸ÄÁÐtest
Ø  alter table position modify test char(20) not null;
4.  ±ípositionÐÞ¸ÄÁÐtestĬÈÏÖµ
Ø  alter table position alter test set default 'system';
5.  ±ípositionÈ¥µôtestĬÈÏÖµ
Ø  alter table position alter test drop default;
6.  ±ípositionÈ¥µôÁÐtest
Ø  alter table position drop column test;
7.  ±ídepart_posɾ³ýÖ÷¼ü
Ø  alter table depart_pos drop primary key;
8.  ±ídepart_posÔö¼ÓÖ÷¼ü
Ø  alter table depart_pos add primary key PK_depart_pos (department_id,position_id);
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1.  ÏÔʾµ±Ç°mysql°æ±¾ºÍµ±Ç°ÈÕÆÚ
Ø  select version(),current_date;


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