I have some Url for digital marketing. These URLs have parameters, so I want to parse the URL and insert a table. For follow campaigns and analyze.
For example:
https://www.example.com/?utm_source=google&utm_medium=blabla&utm_campaign=gameuser&utm_term=winwin&utm_content=takego
I want insert table like that. How can I do that?
You can use a function
CREATE FUNCTION [dbo].[ufn_ParseQueryString] ( @QueryString AS VARCHAR(MAX) ) RETURNS @QueryStringTable TABLE ( [Key] VARCHAR(100), [Value] VARCHAR(1000) ) AS BEGIN
DECLARE @QueryStringPair VARCHAR(2000)
DECLARE @Key VARCHAR(100)
DECLARE @Value VARCHAR(1000)
WHILE LEN(@QueryString) > 0
BEGIN
SET @QueryStringPair = LEFT ( @QueryString, ISNULL(NULLIF(CHARINDEX('&', @QueryString) - 1, -1),
LEN(@QueryString)))
SET @QueryString = SUBSTRING( @QueryString, ISNULL(NULLIF(CHARINDEX('&', @QueryString), 0),
LEN(@QueryString)) + 1, LEN(@QueryString))
SET @Key = LEFT (@QueryStringPair, ISNULL(NULLIF(CHARINDEX('=', @QueryStringPair) - 1, -1),
LEN(@QueryStringPair)))
SET @Value = SUBSTRING( @QueryStringPair, ISNULL(NULLIF(CHARINDEX('=', @QueryStringPair), 0),
LEN(@QueryStringPair)) + 1, LEN(@QueryStringPair))
INSERT INTO @QueryStringTable ( [Key], [Value] )
VALUES ( @Key, @Value )
END
RETURN
END
and test
SELECT * FROM [dbo].[ufn_ParseQueryString] ( 'pubid=mdfbgd&utm_source=facebook&utm_medium=digimun&placement=Instagram_Stories' )
Ideally you will do this in a stored procedure so that you can break the work into bite-sized chunks. You can do it all in 1 SQL statement but it becomes a bit of a nightmare as you get to the last few parameters!
The basic approach is to use a combination of CHARINDEX & SUBSTRING to parse the URL... You find the first ? then take from there to the first & (then split this either side of the =) Then you find the next & (split by = ) and rinse & repeat.
I've started the process off here for you - you should be able to extend this to get the rest of your parameters from the URL - Its a bit slow & clunky but at least you can see whats happening:
Run this bit of SQL and you'll soon get the idea:
declare @str VARCHAR(8000)= 'https://www.example.com/?utm_source=google&utm_medium=blabla&utm_campaign=gameuser&utm_term=winwin&utm_content=takego'
DECLARE @str1 VARCHAR(8000)= SUBSTRING(@str, CHARINDEX( '?',@str, 1)+1, CHARINDEX( '&',@str, 1) -CHARINDEX( '?',@str, 1)-1)
SELECT SUBSTRING(@str1, 1, CHARINDEX( '=',@str1, 1)-1)
SELECT SUBSTRING(@str1, CHARINDEX( '=',@str1, 1)+1, LEN(@Str1))
DECLARE @str2 VARCHAR(8000) = SUBSTRING(@str, CHARINDEX( '?',@str, 1) + len(@str1) + 2, LEN(@str))
SELECT @str2 = SUBSTRING(@str2, 1, CHARINDEX( '&',@str2, 1)-1)
SELECT @str2
