MYSQL 常用语法

MySQL是一种关系型数据库管理系统，常用于存储和管理数据。以下是MySQL的一些常用语法：

1. 创建数据库：CREATE DATABASE database_name;
2. 使用数据库：USE database_name;
3. 创建表格：CREATE TABLE table_name (column1 datatype, column2 datatype, ...);
4. 插入数据：INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...);
5. 更新数据：UPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition;
6. 删除数据：DELETE FROM table_name WHERE condition;
7. 查询数据：SELECT column1, column2, ... FROM table_name WHERE condition;
8. 排序数据：SELECT column1, column2, ... FROM table_name ORDER BY column_name ASC/DESC;
9. 过滤数据：SELECT column1, column2, ... FROM table_name WHERE column_name LIKE pattern;
10. 聚合函数：SELECT function(column_name) FROM table_name;
11. 连接表格：SELECT column_name(s) FROM table1 JOIN table2 ON table1.column_name = table2.column_name;
12. 子查询：SELECT column_name(s) FROM table_name WHERE column_name IN (SELECT column_name FROM table_name);