Sql server 继续获取“游标为只读”

我的代码似乎很超前

我想用一个唯一的计数器更新一个特定的字段，该计数器不等于{1,2,3，…}

我不断收到错误“光标是只读的”

还有：有没有更简单的方法

declare @MaxVal int = NULL
declare @fetchVal int = NULL
select @MaxVal = MAX(tp_Id)+1 from [<tableContainingInitialMaxval>] 
/** some default **/

DECLARE curs01 CURSOR 
for select @maxVal + row_number() OVER (order by [<someUniqueField>]) from [<table2update>];
(used FOR UPDATE OF [<field2update>] but that made no difference)

open curs01
FETCH NEXT FROM curs01 INTO @fetchVal;
WHILE @@FETCH_STATUS = 0
    begin
        update [<table2update>] set [<field2update>] =  @fetchVal 
        WHERE CURRENT OF curs01;
        FETCH NEXT FROM curs01 INTO @fetchVal;
    end;
CLOSE curs01;
DEALLOCATE curs01;
GO 

---

这不需要光标

DECLARE @MaxVal INT = NULL

SELECT @MaxVal = MAX(tp_Id) + 1
FROM   tableContainingInitialMaxval;

WITH CTE
     AS (SELECT *,
                @maxVal + row_number() OVER (ORDER BY someUniqueField) AS rn
         FROM   table2update)
UPDATE CTE
SET    field2update = rn  

---

FWIW，没有SQL Server 8。最新的版本是6.5、7.0、2000、2005、2008、2008 R2和2012。对不起，这是2008 R2。这看起来很干净，我会在14小时内回到工作岗位后立即通知你