How to parse data using REGEXP_SUBSTR?

Question

I have a data set like this (see below) and I try to extract digits which are in form {variable_number_of_digits}{hyphen}{only_one_digit}:

with mcte as (
select          


        

Answer 1

I try to extract digits which are in form {variable_number_of_digits}{hyphen}{only_one_digit}

To match numbers in this format you should do something like this.

Regex: \/\d+-\d

Regex101 Demo