Split a string with 2 delimiters in SQL Server - sql

Question

I have some wrong data in my SQL Server database.
It's look like this:
abc.qwerty#yahoo.com|fubar#cc.uk|helloworld#gmail.com
or
abc.qwerty#yahoo.com;fubar#cc.uk
How can I split them to separate email if the delimiter can be anyone of these '|', ';', ','.
After spliting, the result will be add to 3 column in the same table:
Email1: abc.qwerty#yahoo.com, Email2: fubar#cc.uk, Email3: helloworld#gmail.com

Answer 1

DECLARE #STR NVARCHAR(MAX)='abc.es#yahoo.com|shudo#cc.uk|maria#gmail.com, abc.es#yahoo.com;shudo#cc.uk'
-- Converts values to rows
SELECT Split.a.value('.', 'VARCHAR(100)') 'Ids'
FROM
(
-- Use 3 REPLACE for '|', ';', ','
SELECT CAST ('<M>' + REPLACE(REPLACE(REPLACE(#STR, '|', '</M><M>'),',','</M><M>'),';','</M><M>') + '</M>' AS XML) AS Data
) AS A
CROSS APPLY Data.nodes ('/M') AS Split(a)
See the working FIDDLE here
UPDATE
If you want Comma Separated Value as final string you can do the below
DECLARE #STR NVARCHAR(MAX)='abc.qwerty#yahoo.com|fubar#cc.uk|helloworld#gmail.com,abc.qwerty#yahoo.com;fubar#cc.uk '
DECLARE #Final VARCHAR(MAX)='';
-- Converts values to rows
;WITH CTE AS
(
SELECT DISTINCT
Split.a.value('.', 'VARCHAR(100)') 'Ids'
FROM
(
-- Use 3 REPLACE for '|', ';', ','
SELECT CAST ('<M>' + REPLACE(REPLACE(REPLACE(#STR, '|', '</M><M>'),',','</M><M>'),';','</M><M>') + '</M>' AS XML) AS Data
) AS A
CROSS APPLY Data.nodes ('/M') AS Split(a)
)
-- Convert to Comma Seperated Values
SELECT #Final +=
Isnull('Email' + CAST(ROW_NUMBER() OVER(ORDER BY IDS)AS VARCHAR(10)) + ': ' + Ids, '') + ', '
FROM CTE
SELECT LEFT(#Final,len(#Final)-1)
PRINT #Final
UPDATE 2 : Split delimiter separated values to rows and convert to columns dynamically
I have written logic inside query
DECLARE #STR NVARCHAR(MAX)='abc.es#yahoo.com|shudo#cc.uk|maria#gmail.com,abc.es#yahoo.com;shudo#cc.uk'
;WITH CTE AS
(
-- Converts values to rows
SELECT DISTINCT Split.a.value('.', 'VARCHAR(100)') 'Ids'
FROM
(
-- Use 3 REPLACE for '|', ';', ','
SELECT CAST ('<M>' + REPLACE(REPLACE(REPLACE(#STR, '|', '</M><M>'),',','</M><M>'),';','</M><M>') + '</M>' AS XML) AS Data
) AS A
CROSS APPLY Data.nodes ('/M') AS Split(a)
)
-- Create a column to order Emails like Email1,Email2.... and insert to a temp table
-- It can be done without temp table, but its for sake of readability
SELECT 'Email' + CAST(ROW_NUMBER() OVER(ORDER BY Ids)AS VARCHAR(10)) EMails,Ids
INTO #TEMP
FROM CTE
-- Get columns to pivot
DECLARE #cols NVARCHAR (MAX)
SELECT #cols = COALESCE (#cols + ',[' + EMails + ']','[' + EMails + ']')
FROM (SELECT DISTINCT EMails FROM #TEMP) PV
ORDER BY EMails
-- Pivot the result(convert to columns from rows)
DECLARE #query NVARCHAR(MAX)
SET #query = 'SELECT * FROM
(
SELECT EMails,Ids
FROM #TEMP
) x
PIVOT
(
MIN(Ids)
FOR EMails IN (' + #cols + ')
) p;'
EXEC SP_EXECUTESQL #query
SQL FIDDLE
Now if you want to insert emails into your table you have created, you can use the below code
DECLARE #query NVARCHAR(MAX)
SET #query = 'INSERT INTO YOURTABLE(' + #cols + ')
SELECT * FROM
(
SELECT EMails,Ids
FROM #TEMP
) x
PIVOT
(
MIN(Ids)
FOR EMails IN (' + #cols + ')
) p;'
EXEC SP_EXECUTESQL #query

Answer 2

Step one I would clean your data. SQL Server has a Replace function you can use.
REPLACE ( string_expression , string_pattern , string_replacement )
Example you can run in SQL Server Management Studio:
select Replace(Replace('ab|de,ghi;de', ',', '|'), ';', '|')
Would first replace the commas, and then the semicolons. Resulting in ab|de|ghi|de
Alternatively, you could just split up the data multiple times by running a cursor on the resulting split (with whatever mechanism you are using to split.