存储过程
是将栏目从上至下由>拼接，跟导航条类似。例如：首页>信息公开>机构职能
USE [MiddleHospital] GO
/****** Object: StoredProcedure [dbo].[GetSubjectPath] Script Date: 08/26/2013 15:24:49 ******/ SET ANSI_NULLS ON GO
SET QUOTED_IDENTIFIER ON GO
CREATE procedure [dbo].[GetSubjectPath]
@code varchar(100),@rtn varchar(1000) output
as
set @rtn=''
begin
declare @tempName varchar(100)
declare @rows int
set @rows=1
declare cursor1 cursor for select name from dbo.GetParentTreeInfoByCode(@code) where issubwebsite=0 order by levels --声明游标
open cursor1 --打开游标
fetch next from cursor1 into @tempName --@tempName应该就是表中name的值
while @@fetch_status=0 --让游标指向第一个值
begin
if(@@cursor_rows=@rows) --当游标的行数等于表的行数（也就是游标指向最后一行）
begin
set @rtn=@rtn+@tempName;
end
else
begin
set @rtn=@rtn+@tempName+'>';
end
fetch next from cursor1 into @tempName --游标指向下一个
set @rows=@rows+1 --行数加1
end
close cursor1
deallocate cursor1
end
select @rtn as subjectPath
GO
同样的功能标量值函数又是怎么做的呢？其实大相近庭
USE [MiddleHospital] GO
/****** Object: UserDefinedFunction [dbo].[GetSubectPathByCode] Script Date: 08/26/2013 15:32:49 ******/ SET ANSI_NULLS ON GO
SET QUOTED_IDENTIFIER ON GO
CREATE FUNCTION [dbo].[GetSubectPathByCode]
(
@code varchar(100)
)
RETURNS varchar(1000)
AS
begin
declare @rtn varchar(1000)
set @rtn=''
declare @tempName varchar(100)
declare @rows int
set @rows=1
declare cursor1 cursor for select name from dbo.GetParentTreeInfoByCode(@code) where issubwebsite=0 order by levels
open cursor1
fetch next from cursor1 into @tempName
while @@fetch_status=0
begin
if(@@cursor_rows=@rows)
begin
set @rtn=@rtn+@tempName;
end
else
begin
set @rtn=@rtn+@tempName+'>';
end
fetch next from cursor1 into @tempName
set @rows=@rows+1
end
close cursor1
deallocate cursor1
return @rtn
end
GO