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use databasename; Ñ¡ÔñÊý¾Ý¿â
drop database name Ö±½Óɾ³ýÊý¾Ý¿â£¬²»ÌáÐÑ
show tables; ÏÔʾ±í
describe tablename; ±íµÄÏêϸÃèÊö
select ÖмÓÉÏdistinctÈ¥³ýÖØ¸´×Ö¶Î
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select version(),current_date;
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shell>mysql -u root -p
mysql> update user set password=password(”xueok654123″) where user=’root’;
mysql> flush privileges //Ë¢ÐÂÊý¾Ý¿â
mysql>use dbname£» ´ò¿ªÊý¾Ý¿â£º
mysql>show databases; ÏÔʾËùÓÐÊý¾Ý¿â
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mysql> grant all privileges on *.* to user@localhost identified by ’something’ with
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GRANT ALL PRIVILEGES ON *.* TO monty@localhost IDENTIFIED BY ’something’ WITH GRANT OPTION;
GRANT ALL PRIVILEGES ON *.* TO monty@”%” IDENTIFIED BY ’something’ WITH GRANT OPTION;
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mysql> revoke all privileges on *.* from root@”%”;
mysql> delete from user where user=”root” and host=”%”;
mysql> flush privileges;
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mysql > alter table t1 rename t2;
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shell> mysqladmin -h myhost -u root -p create dbname
shell> mysqldump -h host -u root -p dbname < dbname_backup.sql
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