mysql查询语句大全

下面提供一些关于mysql数据库查询语句，比如查询所有数据，查询特定数据以及模糊查询数据等。各位可以参考下面的内容，选择需要的即可。

mysql查询数据的语法

1、mysql查询所有数据

SELECT * FROM table_name;

2、mysql查询特定列的数据

SELECT column1, column2 FROM table_name;

3、mysql带条件的查询

SELECT * FROM table_name WHERE condition;

4、mysql模糊查询

SELECT * FROM table_name WHERE column_name LIKE 'keyword%';

5、mysql排序查询

SELECT * FROM table_name ORDER BY column_name ASC/DESC;

6、mysql限制结果的数量

SELECT * FROM table_name LIMIT 10;

7、mysql分页查询

SELECT * FROM table_name LIMIT 20 OFFSET 40;

8、mysql聚合函数查询

SELECT COUNT(*), AVG(column_name), SUM(column_name) FROM table_name;

9、mysql多表连接查询

SELECT t1.column1, t2.column2 FROM table1 t1 INNER JOIN table2 t2 ON t1.id = t2.id;

10、mysql条件分给统计

SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name;

11、mysql子查询

SELECT column1 FROM table_name WHERE column2 IN (SELECT column2 FROM another_table);

12、mysql更新数据

UPDATE table_name SET column_name = new_value WHERE condition;

13、mysql插入数据

INSERT INTO table_name (column1, column2) VALUES (value1, value2);

14、mysql删除数据

DELETE FROM table_name WHERE condition;

15、mysql修改表结构

ALTER TABLE table_name ADD column_name datatype;

以上就是mysql中常用的查询命令，希望对大家有帮助。