更酷的是，您可以使用内联表值函数来选择要更新哪些行(以及通过TOP更新多少行)。那就是:

UPDATE MyTable
SET Column1=@Value1
FROM tvfSelectLatestRowOfMyTableMatchingCriteria(@Param1,@Param2,@Param3)

对于表值函数，你有一些有趣的选择要更新的行，如:

CREATE FUNCTION tvfSelectLatestRowOfMyTableMatchingCriteria
(
    @Param1 INT,
    @Param2 INT,
    @Param3 INT
)
RETURNS TABLE AS RETURN
(
    SELECT TOP(1) MyTable.*
    FROM MyTable
    JOIN MyOtherTable
      ON ...
    JOIN WhoKnowsWhatElse
      ON ...
    WHERE MyTable.SomeColumn=@Param1 AND ...
    ORDER BY MyTable.SomeDate DESC
)

.．.，在简化UPDATE语句语法的同时，仅确定性地更新顶部选定行的真正强大之处在于(在我看来)。

注意，括号对于UPDATE语句是必需的:

update top (100) table1 set field1 = 1

你也可以使用别名和join从select中更新:

UPDATE  TOP (500) T
SET     T.SomeColumn = 'Value'
FROM    SomeTable T
        INNER JOIN OtherTable O ON O.OtherTableFK = T.SomeTablePK
WHERE   T.SomeOtherColumn = 1

这段代码可以完成它的工作

UPDATE TOP (100) table_name set column_name = value;

如果您想显示最近的100条记录，您可以根据需要使用这个选项。

With OrnekWith
as
(
Select Top(100) * from table_name Order By ID desc
)
Update table_name Set column_name = value;

update tb set  f1=1 where id in (select top 100 id from tb where f1=0)

Try:

UPDATE Dispatch_Post
SET isSync = 1
WHERE ChallanNo 
IN (SELECT TOP 1000 ChallanNo FROM dbo.Dispatch_Post ORDER BY 
CreatedDate DESC)