发布:2021/1/4 14:33:54作者:管理员 来源:本站 浏览次数:1306
下面小编就为大家带来一篇SQL中实现SPLIT函数几种方法总结(必看篇)。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧
例1
代码如下
create
function
f_split(@SourceSql
varchar
(8000),@StrSeprate
varchar
(10))
returns
@
temp
table
(a
varchar
(100))
--实现split功能 的函数
--date :2003-10-14
as
begin
declare
@i
int
set
@SourceSql=rtrim(ltrim(@SourceSql))
set
@i=charindex(@StrSeprate,@SourceSql)
while @i>=1
begin
insert
@
temp
values
(
left
(@SourceSql,@i-1))
set
@SourceSql=
substring
(@SourceSql,@i+1,len(@SourceSql)-@i)
set
@i=charindex(@StrSeprate,@SourceSql)
end
if @SourceSql<>
''
insert
@
temp
values
(@SourceSql)
return
end
select
*
from
dbo.f_split(
'1,2,3,4'
,
','
)
a
--------------------
1
2
3
4
(所影响的行数为 4 行)
例2
代码如下
--SQL Server Split函数
--Author:zc_0101
--说明:
--支持分割符多字节
--使用方法
--Select * FROM DBO.F_SQLSERVER_SPLIT('1203401230105045','0')
--select * from DBO.F_SQLSERVER_SPLIT('abc1234a12348991234','1234')
--Select * from DBO.F_SQLSERVER_SPLIT('ABC',',')
CREATE
FUNCTION
F_SQLSERVER_SPLIT(@Long_str
varchar
(8000),@split_str
varchar
(100))
RETURNS
@tmp
TABLE
(
ID
inT
IDENTITY
PRIMARY
KEY
,
short_str
varchar
(8000)
)
AS
BEGIN
DECLARE
@long_str_Tmp
varchar
(8000),@short_str
varchar
(8000),@split_str_length
int
SET
@split_str_length = LEN(@split_str)
IF CHARINDEX(@split_str,@Long_str)=1
SET
@long_str_Tmp=
SUBSTRING
(@Long_str,@split_str_length+1,LEN(@Long_str)-@split_str_length)
ELSE
SET
@long_str_Tmp=@Long_str
IF CHARINDEX(REVERSE(@split_str),REVERSE(@long_str_Tmp))>1
SET
@long_str_Tmp=@long_str_Tmp+@split_str
ELSE
SET
@long_str_Tmp=@long_str_Tmp
IF CHARINDEX(@split_str,@long_str_Tmp)=0
Insert
INTO
@tmp
select
@long_str_Tmp
ELSE
BEGIN
WHILE CHARINDEX(@spl(www.jb51.net)it_str,@long_str_Tmp)>0
BEGIN
SET
@short_str=
SUBSTRING
(@long_str_Tmp,1,CHARINDEX(@split_str,@long_str_Tmp)-1)
DECLARE
@long_str_Tmp_LEN
INT
,@split_str_Position_END
int
SET
@long_str_Tmp_LEN = LEN(@long_str_Tmp)
SET
@split_str_Position_END = LEN(@short_str)+@split_str_length
SET
@long_str_Tmp=REVERSE(
SUBSTRING
(REVERSE(@long_str_Tmp),1,@long_str_Tmp_LEN-@split_str_Position_END))
IF @short_str<>
''
Insert
INTO
@tmp
select
@short_str
END
END
RETURN
END
例3
Sql2000andSql2005实用的Split函数
代码如下
sql2000
CREATE
FUNCTION
[dbo].[splitstring_array]
(
@string nvarchar(4000),@split
char
(1)
)
RETURNS
@array
table
(
oneStr nvarchar(100)
)
AS
BEGIN
declare
@v_code
varchar
(60)
--zell 2006-05-26
--set @string = replace(@string,' ',@split)
--set @string = replace(@string,',',@split)
while len(@string) > 0
begin
if charindex(@split,@string,1) != 0
begin
set
@v_code =
substring
(@string,1,charindex(@split,@string,1)-1)
set
@string =
substring
(@string,charindex(@split,@string,1)+1,len(@string))
end
else
if charindex(@split,@string,1) = 0
begin
set
@v_code = @string
set
@string =
''
end
insert
into
@array(onestr)
values
(@v_code)
end
RETURN
END
sql2005
CREATE
function
[dbo].[func_splitid]
(@str
varchar
(
max
),@split
varchar
(10))
RETURNS
@t
Table
(c1 nvarchar(100))
AS
BEGIN
DECLARE
@x XML
SET
@x =
CONVERT
(XML,
'<items><item id="'
+
REPLACE
(@str, @split,
'"/><item id="'
) +
'"/></items>'
)
INSERT
INTO
@t
SELECT
x.item.value(
'@id[1]'
,
'nvarchar(100)'
)
FROM
@x.nodes(
'//items/item'
)
AS
x(item)
RETURN
END
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