数据库创建表并插入数据练习题
一、创建表的要求
创建一个英雄表(hero)
主键
name
nickname
address
groups
telphone
二、 操作步骤
1.登录MySQL
[root@localhost ~]# systemctl start mysqld
[root@localhost ~]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 8.0.32 Source distribution
Copyright (c) 2000, 2023, Oracle and/or its affiliates.
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> show databases;
+--------------------+
| Database |
+--------------------+
| db_han |
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
2.创建数据库和表
注意：关键词建议用大写
mysql> create database db_hero;
Query OK, 1 row affected (0.00 sec)
mysql> use db_hero; #这句可以不跟分号
Database changed
mysql> create table if not exists t_hero (
-> id int primary key auto_increment,
-> name varchar(50) not null unique,
-> nickname varchar(255),
-> address varchar(50),
-> `groups` varchar(25), #注意：groups是关键字，则需用反引号引起或稍做改变这个单词
-> email varchar(50),
-> telphone varchar(11) unique
-> );
Query OK, 0 rows affected (0.02 sec)
3. 插入数据
mysql> insert into t_hero values (null,"宋江","及时雨",null,"水浒传","[email protected]","15112346666");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"吴用","智多星",null,"水浒传","[email protected]","15122331144");
Query OK, 1 row affected (0.01 sec)
mysql> insert into t_hero values (null,"林冲","豹子头",null,"水浒传","[email protected]","15111223456");
Query OK, 1 row affected (0.01 sec)
mysql> insert into t_hero values (null,"鲁智深","花和尚",null,"水浒传","[email protected]","15199884567");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"武松","行者",null,"水浒传","[email protected]","15145663245");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"李逵","黑旋风",null,"水浒传","[email protected]","15145456767");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"刘备","玄德","河北涿州","三国演义","[email protected]","15298675544");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"沙僧","沙和尚","天宫卷帘大将","西游记","[email protected]","15544338877");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"关羽","美髯公","山西运城","三国演义","[email protected]","15233556633");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"张飞","翼德",null,"三国演义","[email protected]","15244331234");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"猪八戒","天蓬元帅","天宫将领","西游记","[email protected]","15545673221");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"赵云","常胜将军",null,"三国演义","[email protected]","15212344321");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"诸葛亮","卧龙","山东临沂市沂南县","三国演义","[email protected]","15299776543");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"孙悟空","齐天大圣","花果山","西游记","[email protected]","15532423432");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"贾宝玉","宝二爷","荣国府","红楼梦","[email protected]","17732467632");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"唐僧","玄奘","大唐","西游记","[email protected]","15534543678");
Query OK, 1 row affected (0.00 sec)
mysql> insert into t_hero values (null,"林黛玉","潇湘妃子","荣国府外戚","红楼梦","[email protected]","17744557654");
Query OK, 1 row affected (0.00 sec)4.查看表内容
