sql server 2005 分别用值函数和存储过程拆分字符串成列
Create PROCEDURE [dbo].[label_Add_Bat]
@labels NVARCHAR(400) -- eg:N'asd,ad,asdoashdo,12313j1,asdasda,asdasd,'
AS
BEGIN
DECLARE @temp TABLE (col NVARCHAR(100))
DECLARE @tlabel NVARCHAR(100)
INSERT INTO @temp SELECT col FROM split(@labels,N',')
declare cur_temp cursor KEYSET
for
select col from @temp
open cur_temp
FETCH NEXT FROM cur_temp INTO @tlabel
while (@@FETCH_STATUS=0)
begin
IF(EXISTS(SELECT label_Id FROM label WHERE label_Caption=@tlabel))
BEGIN
UPDATE label SET label_Num = label_Num + 1 WHERE label_Caption=@tlabel
END
ELSE
BEGIN
INSERT INTO [label] ([label_Caption]) VALUES (@tlabel)
END
FETCH NEXT FROM cur_temp INTO @tlabel
end
close cur_temp
DEALLOCATE cur_temp
END
@labels NVARCHAR(400) -- eg:N'asd,ad,asdoashdo,12313j1,asdasda,asdasd,'
AS
BEGIN
DECLARE @temp TABLE (col NVARCHAR(100))
DECLARE @tlabel NVARCHAR(100)
INSERT INTO @temp SELECT col FROM split(@labels,N',')
declare cur_temp cursor KEYSET
for
select col from @temp
open cur_temp
FETCH NEXT FROM cur_temp INTO @tlabel
while (@@FETCH_STATUS=0)
begin
IF(EXISTS(SELECT label_Id FROM label WHERE label_Caption=@tlabel))
BEGIN
UPDATE label SET label_Num = label_Num + 1 WHERE label_Caption=@tlabel
END
ELSE
BEGIN
INSERT INTO [label] ([label_Caption]) VALUES (@tlabel)
END
FETCH NEXT FROM cur_temp INTO @tlabel
end
close cur_temp
DEALLOCATE cur_temp
END
表值函数split:
CREATE function [dbo].[split](@c varchar(max),@split varchar(2))
returns @t table(col varchar(20))
as
BEGIN
DECLARE @item NVARCHAR(20)
--params
while(charindex(@split,@c)>0)
begin
SET @item=substring(@c,1,charindex(@split,@c)-1)
/*check is empty*/
IF(RTRIM(LTRIM(@item))!='')
BEGIN
insert @t(col) values (@item)
END
set @c = stuff(@c,1,charindex(@split,@c),'')
end
--one param
IF(RTRIM(LTRIM(@c))!='')
BEGIN
insert @t(col) values (@c)
END
return
end
returns @t table(col varchar(20))
as
BEGIN
DECLARE @item NVARCHAR(20)
--params
while(charindex(@split,@c)>0)
begin
SET @item=substring(@c,1,charindex(@split,@c)-1)
/*check is empty*/
IF(RTRIM(LTRIM(@item))!='')
BEGIN
insert @t(col) values (@item)
END
set @c = stuff(@c,1,charindex(@split,@c),'')
end
--one param
IF(RTRIM(LTRIM(@c))!='')
BEGIN
insert @t(col) values (@c)
END
return
end
--------------------------------------------------------------------------
Daniel Chow's Blog - 不管你在哪里,都要有一颗创业的心!
http://www.cnblogs.com/DanielChow/
分类:
数据库
【推荐】国内首个AI IDE,深度理解中文开发场景,立即下载体验Trae
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步
· Linux系列:如何用 C#调用 C方法造成内存泄露
· AI与.NET技术实操系列(二):开始使用ML.NET
· 记一次.NET内存居高不下排查解决与启示
· 探究高空视频全景AR技术的实现原理
· 理解Rust引用及其生命周期标识(上)
· 阿里最新开源QwQ-32B,效果媲美deepseek-r1满血版,部署成本又又又降低了!
· 单线程的Redis速度为什么快?
· SQL Server 2025 AI相关能力初探
· 展开说说关于C#中ORM框架的用法!
· AI编程工具终极对决:字节Trae VS Cursor,谁才是开发者新宠?