mysql curd语句
时间: 2023-07-24 17:44:31 浏览: 62
MySQL 是一种常用的关系型数据库管理系统,它支持各种 CRUD 操作(增加、查询、修改、删除)。下面是 MySQL 中常用的增删改查语句:
1. 插入数据
```sql
INSERT INTO table_name (column1, column2, column3, ...)
VALUES (value1, value2, value3, ...);
```
示例:
```sql
INSERT INTO users (name, age, email)
VALUES ('张三', 20, 'zhangsan@example.com');
```
2. 查询数据
```sql
SELECT column1, column2, ...
FROM table_name
WHERE condition;
```
示例:
```sql
SELECT * FROM users WHERE age > 18;
```
3. 更新数据
```sql
UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;
```
示例:
```sql
UPDATE users SET age = 30 WHERE name = '张三';
```
4. 删除数据
```sql
DELETE FROM table_name WHERE condition;
```
示例:
```sql
DELETE FROM users WHERE name = '张三';
```
需要注意的是,以上语句中的 table_name、column1、value1、condition 等需要替换为具体的表名、列名、值和条件,语句中的大小写也需要注意。