启动mysql的服务器
chu888# cd /usr/local/etc/rc.d
chu888# ls
00mysql-client.sh mysql-server.sh
chu888# ./mysql-server.sh start
使用mysql的客户端
chu888# cd /usr/local/bin
chu888# ls my*
my_print_defaults mysqlaccess
myisamchk mysqladmin
myisamlog mysqlbinlog
myisampack mysqlbug
mysql mysqlcheck
mysql_config mysqld_multi
mysql_convert_table_format mysqldump
mysql_find_rows mysqldumpslow
mysql_fix_privilege_tables mysqlhotcopy
mysql_install_db mysqlimport
mysql_setpermission mysqlshow
mysql_zap mysqltest
chu888# ./mysql
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 2 to server version: 3.23.47
Type 'help;' or '/h' for help. Type '/c' to clear the buffer.
mysql>
如果看到这个mysql>的提示符，说明你以可以使用这个数据库了。
2 mysql管理
首先我们应该认识以下几个应用程序：
mysql是一个交互式的程序，允许将SQL语句发布到服务器上并浏览其结果
mysqladmin一个管理程序，允许执行诸如关闭服务器以及创建或删除数据库的工作
isamchk和myisamchk这些实用程序将帮助你完成表的分析和优化，以及在表损坏时进行崩溃恢复。
Mysqldump一个工具，用于备份或将数据库拷贝到另一个服务器中
3 数据库目录的位置
可以使用mysqladmin直接得到
chu888# ./mysqladmin variables
4 mysql数据表的表示法
格式文件 .frm 描述表的结构
数据文件 .isd或.myd 包含表的数据
索引文件 .isd或.myi索引文件
5 关闭数据库
chu888#./mysqladmin shutdown
6 备份数据库
chu888#mysqldump samp_db>/usr/tmp/samp_db.2002
7 恢复数据库
chu888#mysqldump samp_db
8 修改数据库的密码
chu888# ./mysqladmin -uroot -p password '123456'
chu888# ./mysql -h localhost -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 2 to server version: 3.23.47
Type 'help;' or '/h' for help. Type '/c' to clear the buffer.
mysql>
mysql的最基本使用
chu888# ./mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 6 to server version: 3.23.47
Type 'help;' or '/h' for help. Type '/c' to clear the buffer.
mysql> show databases;
+----------+
| Database |
+----------+
| mysql |
| test |
+----------+
2 rows in set (0.00 sec)
mysql> create database chu888;
Query OK, 1 row affected (0.01 sec)
mysql> use chu888;
Database changed
mysql> select now(),user(),version();
+---------------------+----------------+-----------+
| now() | user() | version() |
+---------------------+----------------+-----------+
| 2003-06-19 06:13:58 | root@localhost | 3.23.47 |
+---------------------+----------------+-----------+
1 row in set (0.00 sec)
mysql>
有得时候在输入大量的SQL脚本时比较麻烦，这时如何办哪？
#./mysql
mysql> create database testsql;
Query OK, 1 row affected (0.01 sec)
mysql> show databases;
+----------+
| Database |
+----------+
| chu888 |
| mysql |
| test |
| testsql |
+----------+
4 rows in set (0.02 sec)
mysql>
mysql> create table president
-> (
-> last_name varchar(15) not null,
-> first_name varchar(15) not null,
-> suffix varchar(5) null,
-> city varchar(20) not null,
-> state varchar(2) not null,
-> birth date not null,
-> death date null
-> )
-> ;
Query OK, 0 rows affected (0.02 sec)
mysql> insert into president values('Robbert','Wan','ok','Ol','a','1934-11-22','19-2-11');
Query OK, 1 row affected (0.02 sec)
mysql> insert into president values('a','Wan','ok','Ol','a','1934-11-22','19-2-11');
Query OK, 1 row affected (0.01 sec)
mysql> update president set last_name='liu' where last_name='a'
-> ;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> delete from president where last_name='liu'
-> ;
Query OK, 1 row affected (0.01 sec)
mysql>
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