标签：now() == datetime clear distrib varchar ade exit 引入
MySQL:应用场景（互联网企业，扩展性强）
mysql 是一个客户端命令
quit 退出
mysql -u ‘tedu@192.168.0.199‘ -p
\c 退出当前行输入
status； 显示基本信息
//建库
create database ttms_lmg default character set utf8;
//建表
create table t1 if not exists t1(
-> id int primary key,
-> title varchar(50),
-> createtime datetime);
//建表后修改字符集
alter database ttms default character set utf8;
//更改字符集
create database aaa;
set names utf8;
use aaa;
//添加判断，表存在则删除
drop table if exists t1
数据库表数据的CRUD操作
insert select update delete
//使用帮助文档，使用help等价与？
? drop database ?create database ?int ?bigint
? function 查看系统中有那些函数
？ now
select now(); 显示当前时间
insert into t1 （createtime）values (now());
set foreign_key_checks=0; 设置不检查外键约束
set names utf8;
source d:/ttms01.sql 引入外部.sql文件(window系统下)
source /home/soft01/test.sql; （linux系统下）
======================================================================
【====Linux系统配置启动MySQL=====】
[soft01@cpe-172-88-7-187 桌面]$ su root;
密码：tarenamiszhengzhou
[root@cpe-172-88-7-187 桌面]# rm -rf /var/lib/mysql/mysql.sock;
[root@cpe-172-88-7-187 桌面]# service mysqld restart;
停止 mysqld： [确定]
正在启动 mysqld： [确定]
[soft01@cpe-172-88-7-187 桌面]$ mysql -uroot;
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.1.71 Source distribution
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
mysql> Ctrl-C -- exit!
Aborted
[soft01@cpe-172-88-7-187 桌面]$
标签：now() == datetime clear distrib varchar ade exit 引入
原文地址：http://www.cnblogs.com/lmg-jie/p/7596930.html
