該LAST()函數
該LAST()函數返回所選列的最後一個值。
SQL LAST()語法
SELECT LAST(column_name) FROM table_name;Note:該LAST()函數僅在支持Access。
SQL LAST()解決方法在SQL Server，MySQL和Oracle
SQL Server的語法
SELECT TOP 1 column_name
FROM table_name
ORDER BY column_name DESC;例
SELECT TOP 1 CustomerName FROM Customers
ORDER BY CustomerID DESC;MySQL的語法
SELECT column_name FROM table_name
ORDER BY column_name DESC
LIMIT 1;例
SELECT CustomerName FROM Customers
ORDER BY CustomerID DESC
LIMIT 1;Oracle語法
SELECT column_name FROM table_name
ORDER BY
column_name DESC
WHERE ROWNUM <=1;例
SELECT CustomerName FROM Customers
ORDER BY CustomerID DESC
WHERE
ROWNUM <=1;演示數據庫
在本教程中，我們將使用眾所周知的Northwind示例數據庫。
下面是從選擇"Customers"表：
| CustomerID | CustomerName | ContactName | Address | City | PostalCode | Country |
|---|---|---|---|---|---|---|
| 1 |
Alfreds Futterkiste | Maria Anders | Obere Str. 57 | Berlin | 12209 | Germany |
| 2 | Ana Trujillo Emparedados y helados | Ana Trujillo | Avda. de la Constitucion 2222 | Mexico D.F. | 05021 | Mexico |
| 3 | Antonio Moreno Taqueria | Antonio Moreno | Mataderos 2312 | Mexico D.F. | 05023 | Mexico |
| 4 |
Around the Horn | Thomas Hardy | 120 Hanover Sq. | London | WA1 1DP | UK |
| 5 | Berglunds snabbkop | Christina Berglund | Berguvsvagen 8 | Lulea | S-958 22 | Sweden |
SQL LAST()實例
下面的SQL語句選擇的最後一個值"CustomerName"從列"Customers"表：