更新表sql server中的前1条记录

我的查询

UPDATE TOP (1) TX_Master_PCBA  
SET TIMESTAMP2 = '2013-12-12 15:40:31.593'
WHERE SERIAL_NO IN ('0500030309') 
ORDER BY TIMESTAMP2 DESC 

使用表中的serial_No列TX_Master_PCBA我有10条记录,但我想更新最新TIMESTAMP2的当前日期时间.

上面的查询抛出错误:

关键字"TOP"附近的语法不正确.

小智.. 39

WITH UpdateList_view AS (
  SELECT TOP 1  * from TX_Master_PCBA 
  WHERE SERIAL_NO IN ('0500030309') 
  ORDER BY TIMESTAMP2 DESC 
)

update UpdateList_view 
set TIMESTAMP2 = '2013-12-12 15:40:31.593'

Kapil.. 22

UPDATE TX_Master_PCBA
SET TIMESTAMP2 = '2013-12-12 15:40:31.593',
G_FIELD='0000'
WHERE TIMESTAMP2 IN 
(
   SELECT TOP 1 TIMESTAMP2
   FROM TX_Master_PCBA WHERE SERIAL_NO='0500030309'
   ORDER BY TIMESTAMP2 DESC   -- You need to decide what column you want to sort on
)

panky sharma.. 19

Kapil的接受答案存在缺陷,如果有2条或多条记录具有相同的时间戳,则会更新多条记录,而不是真正的前1条查询.

    ;With cte as (
                    SELECT TOP(1) email_fk FROM abc WHERE id= 177 ORDER BY created DESC   
            )
    UPDATE cte SET email_fk = 10

Ref Remus Rusanu Ans: - SQL更新top1行查询