Please I am having some difficulties using Regex to extract a specific part of a string field within my Data.
I have for example a field with the following string: 99999998_20180501_001_21_11+22_ORDERS
I will like to extract the Year and Month (marked in green) for each single record within that field. The field ist automatically generated and the date changes depending on the date of input of the record (YYYYMMDD), else the format remains the same for all the records. Only exception could be the prefix that could vary between "ORDERS" and "OFFERS"