MIN() 函数返回所选列的最小值。
MAX() 函数返回所选列的最大值。
SELECT MIN(column_name)
FROM table_name
WHERE condition
SELECT MAX(column_name)
FROM table_name
WHERE condition
以下是“Northwind”数据库的“产品”表中的示例:
ProductID | ProductName | SupplierID | CategoryID | Unit | Price |
---|---|---|---|---|---|
1 | Chais | 1 | 1 | 10 boxes x 20 bags | 18.00 |
2 | Chang | 1 | 1 | 24 - 12 oz bottles | 19.00 |
3 | Aniseed Syrup | 1 | 2 | 12 - 550 ml bottles | 10.00 |
4 | Chef Anton's Cajun Seasoning | 2 | 2 | 48 - 6 oz jars | 22.00 |
5 | Chef Anton's Gumbo Mix | 2 | 2 | 36 boxes | 21.35 |
以下 SQL 语句确定最便宜产品的价格:
Run SQLSELECT MIN(Price) AS SmallestPrice
FROM Products
以下 SQL 语句查找最昂贵产品的价格:
Run SQLSELECT MAX(Price) AS LargestPrice
FROM Products