SQL SELECT LAST
last()函数用于返回指定列的最后一个值。
SQL SELECT LAST()的语法:
SELECT LAST (column_name) FROM table_name;
您应该注意，last()函数仅在MS Access中受支持。但是有一些方法可以获取MySql，SQL Server，Oracle等数据库中的最后一条记录。
我的SQL语法:
SELECT column_name FROM table_name
ORDER BY column_name DESC
LIMIT 1;
SQL Server语法:
SELECT TOP 1 column_name FROM table_name
ORDER BY column_name DESC;
Oracle语法:
SELECT column_name FROM table_name
ORDER BY column_name DESC
WHERE ROWNUM <=1;
让我们以客户为例检查SQL SELECT LAST命令:
表客户
| CUSTOMER_NAME |
AGE |
ADDRESS |
EXPENDITURE |
| KAMAL SHARMA |
26 |
GHAZIABAD |
6000 |
| ROBERT PETT |
23 |
NEWYORK |
26000 |
| SHIKHA SRIVASTAV |
22 |
DELHI |
9000 |
如果要从"客户"表中检索"客户名称"列的最后一个值，则需要编写以下查询:
SELECT LAST (CUSTOMER_NAME) AS LAST_CUSTOMER FROM CUSTOMERS;
After that query, you will find the result:
SHIKHA SRIVASTAV
