split semicolon delimiter SQL to rows [duplicate] - sql

Question

This question already has answers here:
T-SQL split string
(27 answers)
Closed 6 years ago.
Just want to ask for help.
I'm trying to split delimited values with a semicolon as a delimiter.
Comma cannot be replaced to the semicolon since there are values that have comma.
ID Value
1 | A&B;C;D;E, F
Transform to:
ID Value
1 A&B
1 C
1 D
1 E, F
I tried tweaking the SQL scripts that i got online but to no success
SELECT F1.ID,
O.splitdata
FROM
(
SELECT OldID,
cast('<X>'+replace((SELECT ColumnName + '' FOR XML PATH('')),';','</X><X>')+'</X>' as XML) as xmlfilter from TableName F
)F1
CROSS APPLY
(
SELECT fdata.D.value('.','varchar(max)') as splitdata
FROM f1.xmlfilter.nodes('X') as fdata(D)) O
It works for some of my columns but if the columns have special or Illegal characters it outputs this error:
Msg 9411, Level 16, State 1, Line 2
XML parsing: line 1, character 16, semicolon expected
Thanks!

Answer 1

If you do not like a function, or if you do not have the rights to create a new function, you can use the quite fast XML approach. In your case it needs some extra effort to get this XML-safe (due to special characters and the ; as delimiter):
Declare #Dummy table (ID int, SomeTextToSplit varchar(max))
Insert Into #Dummy values
(1,'A&B;C;D;E, F')
,(2,'"C" & "D";<C>;D;E, F');
DECLARE #Delimiter VARCHAR(10)=';';
WITH Casted AS
(
SELECT *
,CAST('<x>' + REPLACE((SELECT REPLACE(SomeTextToSplit,#Delimiter,'§§Split$me$here§§') AS [*] FOR XML PATH('')),'§§Split$me$here§§','</x><x>') + '</x>' AS XML) AS SplitMe
FROM #Dummy
)
SELECT Casted.*
,x.value('.','nvarchar(max)') AS Part
FROM Casted
CROSS APPLY SplitMe.nodes('/x') AS A(x)
The result
1 A&B
1 C
1 D
1 E, F
2 "C" & "D"
2 <C>
2 D
2 E, F

Answer 2

Option 1 with a UDF
Declare #YourTable table (ID int, Value varchar(max))
Insert Into #YourTable values
(1,'A&B;C;D;E, F')
Select A.ID
,B.*
From #YourTable A
Cross Apply [dbo].[udf-Str-Parse-8K](A.Value,';') B
Option 2 without a UDF
Select A.ID
,B.*
From #YourTable A
Cross Apply (
Select RetSeq = Row_Number() over (Order By (Select null))
,RetVal = LTrim(RTrim(B.i.value('(./text())[1]', 'varchar(max)')))
From (Select x = Cast('<x>' + replace((Select replace(A.Value,';','§§Split§§') as [*] For XML Path('')),'§§Split§§','</x><x>')+'</x>' as xml).query('.')) as A
Cross Apply x.nodes('x') AS B(i)
) B
Both Return
ID RetSeq RetVal
1 1 A&B
1 2 C
1 3 D
1 4 E, F
This UDF is XML Safe and VERY fast
CREATE FUNCTION [dbo].[udf-Str-Parse-8K] (#String varchar(max),#Delimiter varchar(25))
Returns Table
As
Return (
with cte1(N) As (Select 1 From (Values(1),(1),(1),(1),(1),(1),(1),(1),(1),(1)) N(N)),
cte2(N) As (Select Top (IsNull(DataLength(#String),0)) Row_Number() over (Order By (Select NULL)) From (Select N=1 From cte1 a,cte1 b,cte1 c,cte1 d) A ),
cte3(N) As (Select 1 Union All Select t.N+DataLength(#Delimiter) From cte2 t Where Substring(#String,t.N,DataLength(#Delimiter)) = #Delimiter),
cte4(N,L) As (Select S.N,IsNull(NullIf(CharIndex(#Delimiter,#String,s.N),0)-S.N,8000) From cte3 S)
Select RetSeq = Row_Number() over (Order By A.N)
,RetVal = LTrim(RTrim(Substring(#String, A.N, A.L)))
From cte4 A
);
--Orginal Source http://www.sqlservercentral.com/articles/Tally+Table/72993/
--Much faster than str-Parse, but limited to 8K
--Select * from [dbo].[udf-Str-Parse-8K]('Dog,Cat,House,Car',',')
--Select * from [dbo].[udf-Str-Parse-8K]('John||Cappelletti||was||here','||')

Answer 3

Please use the function below to split a string by a specific delimiter:
CREATE FUNCTION [dbo].[Split](#String varchar(8000), #Delimiter char(1))
returns #temptable TABLE (SplitValue varchar(8000))
as
begin
declare #idx int
declare #slice varchar(8000)
select #idx = 1
if len(#String)<1 or #String is null return
while #idx!= 0
begin
set #idx = charindex(#Delimiter,#String)
if #idx!=0
set #slice = left(#String,#idx - 1)
else
set #slice = #String
if(len(#slice)>0)
insert into #temptable(SplitValue) values(#slice)
set #String = right(#String,len(#String) - #idx)
if len(#String) = 0 break
end
return
end
Let me know if you have any queries.
Thanks .