mysql面试题sql语句
时间: 2023-09-23 14:07:37 浏览: 76
以下是一些常见的 MySQL 面试题 SQL 语句:
- 查询表中所有记录:
SELECT * FROM table_name;
- 查询表中指定字段的记录:
SELECT column1, column2, ... FROM table_name;
- 按条件查询表中记录:
SELECT * FROM table_name WHERE condition;
- 按条件查询表中指定字段的记录:
SELECT column1, column2, ... FROM table_name WHERE condition;
- 对查询结果进行排序:
SELECT * FROM table_name ORDER BY column_name [ASC|DESC];
- 对查询结果进行分组:
SELECT column1, column2, ... FROM table_name GROUP BY column_name;
- 对查询结果进行计数:
SELECT COUNT(*) FROM table_name;
- 对查询结果进行求和:
SELECT SUM(column_name) FROM table_name;
- 对查询结果进行最大值或最小值的计算:
SELECT MAX(column_name) FROM table_name;
SELECT MIN(column_name) FROM table_name;
- 对查询结果进行多表联合查询:
SELECT * FROM table1 JOIN table2 ON table1.column_name = table2.column_name;
相关推荐














