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
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