I'm new to SQL and SQL Server in particular trying to extract values from a string based on a regex pattern. I have two patterns which can be boiled down to:
'string(int:int)'
'string(len=int):int+'
I need to extract one of the intigers from the pattern - in case of the first pattern, intigers from the bracket, from the second pattern, one of the integers in the end.
It's kind of obvious that this is a bit of a noob question, but comming from Python I really strugle with finding the proper tools in SQL Server to do this.
I would appreciate if someone has a good example of how to do something like this or has a good tutorial recommendation.
Much appreciated!
You can use the combination of the substring
and charindex
as follows:
For first pattern you can use:
SUBSTRING(your_string,
CHARINDEX(your_string,'(') + 1,
CHARINDEX(your_string,':')-CHARINDEX(your_string,'(')-1
)
For the second pattern you can use:
SUBSTRING(your_string,
CHARINDEX(your_string,':')+1
)
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