mysql建表

1   登录

mysql-uroot -proot

2.创建数据库

　　在创建数据库之前，我们可以查看已经存在的数据库：

mysql> SHOW DATABASES;
+--------------------+
| Database           |
+--------------------+
| information_schema |    |
|      sys      
| performance_schema |
|      mysql   
+--------------------+
4 rows in set (0.00 sec)

　　

创建数据库的格式：CREATE DATABASE 数据库名;

示例：创建一个名为tb1的数据库

 

mysql>  CREATE DATABASE tb1;
Query OK, 1 row affected (0.00 sec)

mysql>  SHOW DATABASES;
+--------------------+
| Database           |
+--------------------+
| information_schema |
|          sys        |
| performance_schema |
|      mysql         |
|        tb1         |
+--------------------+
4 rows in set (0.00 sec)

3.删除数据库：

删除tb1数据库

mysql> SHOW DATABASES;
+--------------------+
| Database           |
+--------------------+
| information_schema |    |
|      sys      
| performance_schema |
|      mysql   
+--------------------+
4 rows in set (0.00 sec)