Q:

Parsing URL Links

 I have a large data set of over 10k+ rows and I'm trying to parse the url link
 that people of clicked on

 here is a table: dbo.email_list

 UserID   Cliked_Linked
 101012   https:// amz/profile_center?qp= 8eb6cbf33cfaf2bf0f51
 052469   htpps:// lago/center=age_gap=email_address=caipaingn4535=English_USA
 046894   https://itune/fr/unsub_email&utm=packing_345=campaign_6458_linkname=ghostrider

So I tried this code:
UPDATE email_list set Clicked_Link= REVERSE(SUBSTRING(REVERSE(Cliked_Link),,CHARINDEX('.', REVERSE(ColumnName)) + 1, 999))

Unfortunately this didn't work.
The goal is to have the link split where the '=' sign is and and have anything that is between the equal sign be in its own column
This is the result I hope to have

UserID  COL_1                              COL_2                  COL_3                COL_4
101012  https:// amz/profile_center?qp    8eb6cbf33cfaf2bf0f51    NaN
052469  htpps:// lago/center              email_addres           caipaingn4535         English_USA
046894  https://itune/fr/unsub_email&utm  packing_345          campaign_6458_linknam   ghostrider

A:

If you are on SQL Server 2016 or above, you can use STRING_SPLIT() in combination with PIVOT. You would have to know how many = signs you have though.
SELECT UserID, Cliked_Linked, [1],[2],[3],[4],[5]
FROM
(
SELECT *, ROW_NUMBER() OVER(PARTITION BY USERID ORDER BY (SELECT NULL)) as rn
FROM dbo.email_list
CROSS APPLY
STRING_SPLIT(Cliked_Linked,'=')
) AS SourceT
PIVOT
(
MAX(value)
FOR rn IN ([1],[2],[3],[4],[5]) 
) as Pvt;

Example result set

DB<>Fiddle

