Mysql數(shù)據(jù)庫常用命令：
啟動Mysql數(shù)據(jù)庫
C:>cd Mysql5.0 bin
C:Mysql5.0 bin>mysqld –install 安裝Mysql服務(wù)
C:Mysql5.0 bin>net start mysql 啟動Mysql服務(wù)
請求的服務(wù)已經(jīng)啟動。
連接mysql
用戶須要提供Mysql的用戶名和密碼來連接服務(wù)器，要是服務(wù)器不是在本機，則還須要一個主機名或IP來指定服務(wù)器的位子。
C:Mysql5.0 bin>mysql -h localhost -u root -p
Enter passWord: ****
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 6 to server version: 5.0.18-nt
Type 'help;' or 'h' for help. Type 'c' to clear the buffer.
mysql>
使用一條簡單的查詢語句
mysql> select version(),current_date;
mysql> select version();select now();
新建或刪除一個數(shù)據(jù)庫
Mysql>create database mydb;
Mysql> drop database mydb;
打開的數(shù)據(jù)庫的命令
mysql> use mysql
Database changed
察看數(shù)據(jù)庫的命令
mysql> show databases;
查看數(shù)據(jù)表的詳盡結(jié)構(gòu)
mysql> desc func;
新建數(shù)據(jù)庫
mysql> create database school;
Query OK, 1 row affected (0.00 sec)
新建表
mysql> create table user01(
-> id varchar(20) NOT NULL,
-> userName varchar(10) NOT NULL,
-> age int(11) default'0',
-> sex char(2) NOT NULL default'm',
-> PRIMARY KEY (id)
-> )TYPE=InnoDB;
Query OK, 0 rows affected, 1 warning (0.02 sec)mysql>desc student;
插入和刪除表中的數(shù)據(jù)
Create table student(stuName varchar(20),age varchar(20),id varchar(20),set0 char(1));
插入
mysql> insert into student(id,stuName) values('1','tomcat');
Query OK, 1 row affected (0.00 sec)
刪除
mysql> delete from student where id='1';
Query OK, 1 row affected (0.01 sec)
刪除表中所有數(shù)據(jù)
mysql> truncate table student;
Query OK, 1 row affected (0.01 sec)
刪除表
mysql> create table temp(t varchar(1));
Query OK, 0 rows affected (0.00 sec)
mysql> drop table temp;
Query OK, 0 rows affected (0.00 sec)
創(chuàng)建新用戶并給予權(quán)限
with grant option;
更改Mysql用戶密碼
c:Mysql5.0 bin>mysqladmin -u root -p password 1234
Enter password: ****
備份數(shù)據(jù)庫及表
我們用mysqldump命令來備份數(shù)據(jù)庫
c:mysql bin>mysqldump –u root –p 3306 mysql>d: backup.sql
執(zhí)行此語句將把mydb 備份到D盤的backup.sql文件中
備份多個數(shù)據(jù)庫表
c:mysql bin>mysqldump –u root –p 3306 school user01 user >d: backup.sql
此句的意思是把school庫中的user01表和user表的內(nèi)容和表的定義備份到D盤backup.sql文件中。
備份所有的數(shù)據(jù)庫
c:myql bin>mysqldump –u root –p 3306 –all –database>d:backup.sql
還原Mysql數(shù)據(jù)庫
c:mysql bin mysql –u root –p 3306 school
還原其中的一個表
mysql> source d:books.sql;
ERROR:
Unknown command 'b'.
Query OK, 0 rows affected (0.00 sec)
Query OK, 1 row affected (0.00 sec)
退出Mysql聯(lián)接
mysql>quit(exit)
關(guān)閉mysql服務(wù)
C:mysql bin>net mysql
MYSQL
