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mysql 数据库 (基础) 笔记_MySQL

Jun 01, 2016 pm 01:48 PM
mysql database

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进入 安装目录.../bin/mysql.exe

cd 更换目录         dir列出当前目录所有文件

c:/vesa/.../a> 尖括号表示在c盘/的vasa/的.../的a 文件夹里面

cd空格..         表示向上一级目录

cd空格目录名   表示进入指定目录

cd空格ted健    表示顺序查看目录名

>mysql 空格 -u用户名 -p密码 (即通过用户名 密码连数据库)

show databases;  显示所有数据库

use 数据库名;        表示进入数据库

show tables;        显示所有数据表

select * from 数据表名;       查看数据表里的数据

插入:insert into 字段名(省略不写的表示所以字段)values 值;    (字段名1->值1  字段名2->值2...顺序一样个数一样)

更新:update 表名 set 字段名 = 值; (where 字段名=值 and 字段名=值)

查询:select 字段列表 from 表名;(where 字段名=值 and 字段名=值)

删除:delete from 表名;(where 字段名=值 and 字段名=值)

创建数据库:create database 数据库名;

删除列表:drop table 表名 ...;

删除数据库:drop database 数据库名;

查看表属性:describe 表名;

修改表属性:alter table 表名 modify column 字段名 类型;

修改表名:rename table 原表名 to 以后的表名;

创建数据表:create table 数据表名(项名 类型 . .,项名 类型 . .,......);

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