8月11日 MySQL

 

MySQL<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

 

    /opt/mysql/bin/mysql -u root

    /opt/mysql/bin/mysql -u root -p

 

 

Databases

 

    SHOW DATABASES;

    CREATE DATABASE xapp;

    USE xapp;

    DROP DATABASE xapp;

 

 

Tables

 

    SHOW TABLES;

    CREATE TABLE students(

        id      int,

        name    varchar(20),

        age     int

    );

 

 

mysql數據庫

   

    user表

 

    GRANT ALL ON mydb.* TO 'aa' IDENTIFIED BY 'bb';

 

 

修改密碼

 

    UPDATE user SET Password = PASSWORD('password') WHERE User = 'name';

    FLUSH PRIVILEGES;

 

 

Limit

 

    -- first 3 records

SELECT * FROM students LIMIT 3;

    -- 3 to 5

    SELECT * FROM students LIMIT 3 OFFSET 3;

SELECT * FROM students ORDER BY name LIMIT 3;

-- 先排序，與SQL Server的TOP相同