SQL Server SELECT @VARIABLE = TOP 1

Question

我正在尝试在存储过程中执行以下操作

DECLARE @TICKET_AGE INT
SELECT @TICKET_AGE = TOP 1 (DATEDIFF(second, DATE_ENTERED, GETDATE())/60) AS TICKET_AGE
FROM TICKETS

但它给出错误，说 INCORRECT SYNTAX NEAR 'TOP' 我做错了什么？

所以我已经更新了我的代码，如下所示...但现在关键字“AS”附近的语法不正确。

    -- DECLARE VARIABLE
    DECLARE @TICKET_AGE INT

    -- PULL THE DATA
    SELECT TOP 1 @TICKET_AGE = (DATEDIFF(second, DATE_ENTERED, GETDATE())/60) AS TICKET_AGE
    FROM TICKETS
    WHERE LOWER(STATUS_DESCRIPTION) LIKE '%new%'
    ORDER BY DATE_ENTERED ASC

Answer 1

TOP 1 位于变量之前:

SELECT TOP 1 @TICKET_AGE = DATEDIFF(second, DATE_ENTERED, GETDATE()) / 60
FROM TICKETS