mysql进阶查询语句

以下是MySQL进阶查询语句的一些示例：

1. 子查询：

SELECT column_name(s)
FROM table_name
WHERE column_name IN (SELECT column_name FROM table_name WHERE condition);

2. 排序查询：

SELECT column_name(s)
FROM table_name
ORDER BY column_name ASC|DESC;

3. 多字段排序查询：

SELECT column_name(s)
FROM table_name
ORDER BY column_name1 ASC|DESC, column_name2 ASC|DESC;

4. 聚合函数查询：

SELECT COUNT(column_name) AS count
FROM table_name
WHERE condition;

5. 分组查询：

SELECT column_name(s)
FROM table_name
GROUP BY column_name;

6. 连接查询：

SELECT column_name(s)
FROM table1
JOIN table2 ON table1.column_name = table2.column_name;```

7. 嵌套查询：

SELECT column_name(s)
FROM table_name
WHERE column_name IN (SELECT column_name FROM table_name WHERE condition);