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mysql小白练手

时间:2018-03-29 19:02:44      阅读:133      评论:0      收藏:0      [点我收藏+]

标签:mysql

mysql小白训练素材,建库建表,增删改查,多敲多练。
技术分享图片
技术分享图片
mysql> show databases;
mysql> create database python3 charset=utf8;
Query OK, 1 row affected (0.00 sec)

mysql> show databases;
mysql> use python3;
Database changed
mysql> show tables;
Empty set (0.00 sec)

mysql> create table students( id int auto_increment primary key not null, name varchar(10) not null, gender bit default 1, birthday datetime);
Query OK, 0 rows affected (0.06 sec)

mysql> show tables;

mysql> desc students;
mysql> alter table students add isdelete bit default 0;
mysql> show create table students;
mysql> rename table students to stu;
mysql> insert into students values(0,‘郭靖‘,1,‘1990-1-1‘,0);
mysql> select * from students;
mysql> insert into students(name) values(‘黄蓉‘);
mysql> insert into students(name,gender) values(‘小龙女‘,0);
mysql> insert into students(name) values(‘杨过‘),(‘雕‘),(‘张三丰‘);
mysql> update students set birthday=‘1992-0-2‘ where id=4;
mysql> delete from students where id =5;
mysql> update students set isdelete=1 where id=6;
备份数据库:
[root@zjf ~]# mysqldump -uroot -p python3 > bak.sql
恢复:
[root@zjf ~]# mysql -uroot -p zfl < bak.sql

mysql小白练手

标签:mysql

原文地址:http://blog.51cto.com/jingfeng/2092630

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