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SQL MIN() 函数

MIN() 函数

MIN() 函数返回指定列的最小值。

SQL MIN() 语法

SELECT MIN(column_name) FROM table_name;

 


演示数据库

在本教程中,我们将使用 yuanbian 样本数据库。

下面是选自 "orders" 表的数据:

+----------+--------------+----------+--------------+----------------+---------------------+
| order_id | order_no     | goods_id | order_amount | order_quantity | create_date         |
+----------+--------------+----------+--------------+----------------+---------------------+
|        1 | 201503120001 |       10 |         1000 |             10 | 2015-03-12 09:00:04 |
|        2 | 201503120002 |       12 |         1300 |             12 | 2015-03-12 17:23:10 |
|        3 | 201503130001 |       11 |         2400 |             22 | 2015-03-13 10:30:12 |
|        4 | 201503130002 |       12 |         2500 |             15 | 2015-03-13 11:00:05 |
|        5 | 201503130003 |       10 |         1400 |             15 | 2015-03-13 14:54:00 |
|        6 | 201503140001 |       12 |         2100 |             12 | 2015-03-14 11:34:00 |
+----------+--------------+----------+--------------+----------------+---------------------+

 


SQL MIN() 示例

下面的 SQL 语句从 "orders" 表的 "order_amount" 列获取最小值,即订单金额最小的订单:

SELECT order_id, MIN(order_amount) AS min_order
FROM orders;

执行以上 SQL 结果如下所示:

+----------+-----------+
| order_id | min_order |
+----------+-----------+
|        1 |      1000 |
+----------+-----------+

 


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