帮我整理一下mysql数据库的指令
时间: 2023-09-12 18:12:32 浏览: 35
以下是MySQL数据库的常用指令:
1. 创建数据库
```
CREATE DATABASE database_name;
```
2. 删除数据库
```
DROP DATABASE database_name;
```
3. 显示数据库列表
```
SHOW DATABASES;
```
4. 选择数据库
```
USE database_name;
```
5. 显示数据库中所有表
```
SHOW TABLES;
```
6. 创建表
```
CREATE TABLE table_name (
column1 datatype,
column2 datatype,
column3 datatype,
...
);
```
7. 删除表
```
DROP TABLE table_name;
```
8. 插入数据
```
INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...);
```
9. 更新数据
```
UPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition;
```
10. 删除数据
```
DELETE FROM table_name WHERE condition;
```
11. 查询数据
```
SELECT column1, column2, ... FROM table_name WHERE condition;
```
12. 修改表结构
```
ALTER TABLE table_name ADD column_name datatype;
ALTER TABLE table_name DROP column_name;
ALTER TABLE table_name MODIFY column_name datatype;
```
13. 创建索引
```
CREATE INDEX index_name ON table_name (column1, column2, ...);
```
14. 删除索引
```
DROP INDEX index_name ON table_name;
```
15. 备份数据库
```
mysqldump -u username -p database_name > backup.sql
```
16. 恢复数据库
```
mysql -u username -p database_name < backup.sql
```