Split string by two delimiters into two columns - sql

Question

I have a string value which has numeric values separated by comma and then by a pipe. I want to split them into a table with two columns. I could split the string by one delimiter but unfortunately couldn't find a way to split by two. Please help.
DECLARE #list NVARCHAR(MAX) = '1,101|2,202|3,303';
The result should be like below.
1 101
2 202
3 303
Thanks in advance.

Answer 1

If you're using SQL Server 2016 or Azure, you have access to the new SPLIT_STRING function. If not I recommend using Jeff Moden's DelimitedSplit8K function, which is widely regarded as the fastest, most efficient SQL based string splitter available...
DECLARE #list NVARCHAR(MAX) = '1,101|2,202|3,303';
SELECT
Col1 = LEFT(dsk.Item, sl.SplitLocation - 1),
Col2 = SUBSTRING(dsk.Item, sl.SplitLocation + 1, LEN(dsk.Item))
FROM
dbo.DelimitedSplit8K(#list, '|') dsk -- code for DelimitedSplit8K can be found here... http://www.sqlservercentral.com/articles/Tally+Table/72993/
CROSS APPLY ( VALUES (ISNULL(NULLIF(CHARINDEX(',', dsk.Item, 1), 0), 1)) ) sl (SplitLocation);

Answer 2

CREATE FUNCTION [dbo].[fn_Split_char](#text nvarchar(max), #delimiter varchar(20) = ' ')
RETURNS #Strings TABLE
(
position int IDENTITY PRIMARY KEY,
value nvarchar(max)
)
AS
BEGIN
DECLARE #index int
SET #index = -1
WHILE (LEN(#text) > 0)
BEGIN
SET #index = CHARINDEX(#delimiter , #text)
IF (#index = 0) AND (LEN(#text) > 0)
BEGIN
INSERT INTO #Strings VALUES (#text)
BREAK
END
IF (#index > 1)
BEGIN
INSERT INTO #Strings VALUES (LEFT(#text, #index - 1))
SET #text = RIGHT(#text, (LEN(#text) - #index))
END
ELSE
SET #text = RIGHT(#text, (LEN(#text) - #index))
END
RETURN
END
Select LEFT(value, Charindex(',', value) - 1) ,
RIGHT(value, Charindex(',', Reverse(value)) - 1) ,
* from [fn_Split_char] ('1,101|2,202|3,303', '|')

Answer 3

Use xml path and cross apply to create multiple rows for a single row based on the pipe separator and then use substring w.r.t the commas to derive two desired columns
Create table #temp(list nvarchar(max))
Insert into #temp values('1,101|2,202|3,303')
SELECT
Substring(Tbl.Col.value('./text()[1]','varchar(50)'),1,1)as col1,
Substring(Tbl.Col.value('./text()[1]','varchar(50)'),charindex(',',Tbl.Col.value('./text()[1]','varchar(50)'),1)+1,len(Tbl.Col.value('./text()[1]','varchar(50)')))
FROM
(Select cast('<a>'+ replace((SELECT list As [*] FOR XML PATH ('')), '|', '</a><a>') + '</a>' as xml)as t
from #temp) tl
Cross apply
tl.t.nodes('/a') AS Tbl(Col)

Answer 4

Try using this Table-valued Function, embed this SP to your main SP
ALTER FUNCTION [dbo].[delimiter]
(
#PARAM_IDS AS VARCHAR(MAX)
#PARAM_DELIMITER AS CHAR(1)
)
RETURNS
#NEW_TABLE TABLE
(
NUM INT NOT NULL IDENTITY,
ID INT NOT NULL
)
AS
BEGIN
DECLARE #NEXTSTRING AS NVARCHAR(MAX);
DECLARE #POS AS INT;
DECLARE #STRING AS NVARCHAR(MAX);
DECLARE #DELIMITER AS NVARCHAR(MAX);
SET #STRING = #PARAM_IDS;
SET #DELIMITER = #PARAM_DELIMITER;
SET #STRING = #STRING + #DELIMITER;
SET #POS = CHARINDEX(#DELIMITER,#STRING);
WHILE (#POS <> 0)
BEGIN
SET #NEXTSTRING = SUBSTRING(#STRING,1,#POS - 1);
INSERT #NEW_TABLE (ID) VALUES (#NEXTSTRING);
SET #STRING = SUBSTRING(#STRING,#POS+1,len(#STRING));
SET #POS = CHARINDEX(#DELIMITER,#STRING);
END
RETURN
END
then example of use
SET #DETAILS_COUNT = (SELECT COUNT(*) FROM delimiter(#PARAM_MS_UNIT_ID, #DELIMITER));