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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¿âǰ£¬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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