求救求救， 哪位能帮我看看这个存储过程哪里错了啊？？？
CREATE PROCEDURE T_Rank
@T_name VARCHAR(35)
AS
BEGIN
 DECLARE @K VARCHAR(35),@W VARCHAR(5),@String VARCHAR(255)
 DECLARE temptable CURSOR STATIC
 FOR SELECT Keyword,Weight FROM Keyword WHERE Topic_name=@T_name
 OPEN temptable
 FETCH NEXT FROM temptable INTO @K,@W
 SET @String=''  
 --Loop until no more row appear
 WHILE ( @@FETCH_STATUS <>-1)
 BEGIN
  SET @String=@String+','+@K+' WEIGHT('+@W+')' 
  FETCH NEXT FROM temptable INTO @K,@W
 END
 
 CLOSE temptable
 DEALLOCATE temptable
 SET @String=(RIGHT(@String,len(@String)-1))
 SET @String ='''ISABOUT('+@String +')'''

 SELECT FT_TBL.ID, FT_TBL.Txt, KEY_TBL.Rank
 FROM Post AS FT_TBL INNER JOIN CONTAINSTABLE ( Post, Txt, @String) AS KEY_TBL
 ON FT_TBL.ID = KEY_TBL.[KEY]
 ORDER BY KEY_TBL.Rank DESC
END

帮我改改这个储存过程，一直报错，谢谢了！！

------解决方案--------------------
CREATE PROCEDURE T_Rank
 @T_name VARCHAR(35)
 AS
 BEGIN
DECLARE @K VARCHAR(35),@W VARCHAR(5),@String VARCHAR(255)
DECLARE temptable CURSOR STATIC
FOR SELECT Keyword,Weight FROM Keyword WHERE Topic_name=@T_name
OPEN temptable
FETCH NEXT FROM temptable INTO @K,@W
SET @String=''
--Loop until no more row appear
WHILE ( @@FETCH_STATUS <>-1)--一般使用@@FETCH_STATUS=0，因为还有-2的状态，所以<>-1不够精确
BEGIN
SET @String=@String+','+@K+' WEIGHT('+@W+')'
FETCH NEXT FROM temptable INTO @K,@W
END
 
CLOSE temptable
DEALLOCATE temptable
SET @String=(RIGHT(@String,len(@String)-1))
SET @String ='''ISABOUT('+@String +')'''--ISABOUT是自定义函数？还是你的是别的语言？
 
SELECT FT_TBL.ID, FT_TBL.Txt, KEY_TBL.Rank
FROM Post AS FT_TBL INNER JOIN CONTAINSTABLE ( Post, Txt, @String) AS KEY_TBL
ON FT_TBL.ID = KEY_TBL.[KEY]
ORDER BY KEY_TBL.Rank DESC
 END