mysql常用指令集合

使用一条简单的查询语句

mysql> select version(),current_date;
查询mysql的版本号 和  日期
mysql> select version();
查询mysql的版本号
select now();
查询当前日期和准确的时间

mysql> select version(),current_date;
查询mysql的版本号 和  日期
mysql> select version();
查询mysql的版本号
select now();
查询当前日期和准确的时间

 

新建或删除一个数据库

Mysql>create database mydb;

Mysql> drop database mydb;

Mysql>create database mydb;

Mysql> drop database mydb;

 

打开的数据库的命令

mysql> use mysql

Database changed

mysql> use mysql

Database changed

 

查看数据库的命令

mysql> show databases;

mysql> show databases;

 

查看数据表的详细结构

(users是 表名)

mysql> desc users;

mysql> desc users;

 

新建数据库

 

mysql> create database school;

 Query OK, 1 row affected (0.00 sec)

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;

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;

 

插入和删除表中的数据

Create table student(stuName varchar(20),age varchar(20),id varchar(20),set0 char(1));

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)

mysql> insert into student(id,stuName) values(‘1′,’tomcat’);

Query OK, 1 row affected (0.00 sec)

 

删除

mysql> delete from student where id=’1′;

 Query OK, 1 row affected (0.01 sec)

mysql> delete from student where id=’1′;

Query OK, 1 row affected (0.01 sec)

 

删除表中所有数据

mysql> truncate table student;

 Query OK, 1 row affected (0.01 sec)

mysql> truncate table student;

Query OK, 1 row affected (0.01 sec)

删除表

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)

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)

 

创建新用户并给予权限

mysql> grant all privileges on *.* to dbuser@localhost identified by ‘1234′

with grant option;

mysql> grant all privileges on *.* to dbuser@localhost identified by ‘1234′

with grant option;

 

更改Mysql用户密码

c:\Mysql5.0\bin>mysqladmin -u root -p password 1234

Enter password: ****

c:\Mysql5.0\bin>mysqladmin -u root -p password 1234

Enter password: ****