日期:2014-05-17  浏览次数:20543 次

关于表值函数的参数传递问题——为什么不能传递列名作为参数
我写了一个表值函数:
SQL code

ALTER   function   [dbo].[split](@c   varchar(2000),@split   varchar(2))   
  returns   @t   table(col   varchar(20))   
  as   
    begin   
    
      while(charindex(@split,@c)<>0)   
        begin   
          insert   @t(col)   values   (substring(@c,1,charindex(@split,@c)-1))   
          set   @c   =   stuff(@c,1,charindex(@split,@c),'')   
        end   
      insert   @t(col)   values   (@c)   
      return   
    end   


然后使用下面的语句,这样报错,ParentStr是NewsBoard的字段,请问如何解决?:
"ParentStr" 不是可识别的表提示选项。如果它要作为表值函数的参数,请确保您的数据库兼容模式设置为 90。
SQL code

ALTER PROCEDURE [dbo].[ShowCurrentBoardNavigation]
@BoardID int AS
begin
select BoardID,BoardName,ParentStr,ParentID from News_Board b
where BoardID =@Boardid and Convert(varchar(10),@BoardID) in (select * from split(ParentStr,','))
end



------解决方案--------------------
顶!
------解决方案--------------------
select * from dbo.split(...)
------解决方案--------------------
SQL code
1.用ParentStr作参数不行
2.去掉函数,改如下:
ALTER PROCEDURE [dbo].[ShowCurrentBoardNavigation]
@BoardID int AS
begin
select BoardID,BoardName,ParentStr,ParentID from News_Board b
where BoardID =@Boardid and charindex(','+ltrim(@BoardId)+',',','+ParentStr+',')>0
end

------解决方案--------------------
http://blog.csdn.net/lihan6415151528/archive/2009/08/10/4431237.aspx
------解决方案--------------------
表值函数有这个限制,try:


SQL code
ALTER PROCEDURE [dbo].[ShowCurrentBoardNavigation]
@BoardID int AS
begin
select BoardID,BoardName,ParentStr,ParentID from News_Board b
cross apply (select * from dbo.split(b.ParentStr,',')) as t
where b.BoardID =@Boardid and Convert(varchar(10),@BoardID) = t.col
end

------解决方案--------------------
SQL code

--更改数据库的兼容级别
DECLARE @DBName VARCHAR(100)
SELECT @DBName = db_name()
EXEC sp_dbcmptlevel @DBName,90

--然后执行存储过程

EXEC [dbo].[ShowCurrentBoardNavigation] @BoardID = 1

------解决方案--------------------
SQL code

--更改数据库的兼容级别
DECLARE @DBName VARCHAR(100)
SELECT @DBName = db_name()
EXEC sp_dbcmptlevel @DBName,90
GO
--然后执行存储过程

EXEC [dbo].[ShowCurrentBoardNavigation] @BoardID = 1