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数据库基本建表操作

news 来源：原创 2025/6/18 7:38:50

1.登录数据库并创建数据库db_ck

创建完成后使用到我们创建的数据库。

2.创建表t_hero

根据hero属性包括（id，name，nickname，age，gender，address，weapon，types）

创建完成后进行查看

使用命令desc t_hero进行查看表建立是否成功;

mysql> create database db_ck;
ERROR 1007 (HY000): Can't create database 'db_ck'; database exists
mysql> use db_ck;
Database changed
mysql> create table t_hero(
    -> id int,
    -> name varchar(100),
    -> nickname varchar(100),
    -> age int,
    -> gender varchar(2),
    -> address varchar(100),
    -> weapon varchar(100),
    -> types varchar(100));
Query OK, 0 rows affected (0.02 sec)

mysql> desc t_hero;
+----------+--------------+------+-----+---------+-------+
| Field    | Type         | Null | Key | Default | Extra |
+----------+--------------+------+-----+---------+-------+
| id       | int          | YES  |     | NULL    |       |
| name     | varchar(100) | YES  |     | NULL    |       |
| nickname | varchar(100) | YES  |     | NULL    |       |
| age      | int          | YES  |     | NULL    |       |
| gender   | varchar(2)   | YES  |     | NULL    |       |
| address  | varchar(100) | YES  |     | NULL    |       |
| weapon   | varchar(100) | YES  |     | NULL    |       |
| types    | varchar(100) | YES  |     | NULL    |       |
+----------+--------------+------+-----+---------+-------+

3.插入我们的四大名著人物数据

 insert into db_hero values(1,"孙悟空","齐天大圣",1000,"男","花果山","如意金箍棒","猴子");
 insert into db_hero values(2,"林黛玉","林妹妹",18,"女","贾府","倒拔垂杨柳","人类");
 insert into db_hero values(3,"李逵","黑旋风",30,"男","沂州","两柄板斧","人类");
 insert into db_hero values(4,"紫霞仙子","盘丝大仙",500,"女","盘丝洞","紫霞宝剑","神仙");