Parsing a specific number of characters within a string

Question

Dear community,

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"

I will appreciate your assistance.

Thanks

afv2688 · Accepted Answer

Hello @Desa19,

I've put you two ways to get to the same info with some extra columns to classify by date.

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Regards

Jonathan-Sherman · Accepted Answer

Hi @Desa19,

You could use the following expression to parse the YearMonth into a new column:

\d+_(\d{6}).*

If this solves your issue please mark the answer as correct, if not let me know! I've attached my workflow for you to download if needed.

Regards,

Jonathan

CharlieS · Accepted Answer

This can be done in a single Formula tool. This will work for the 8-digit date string in any position in the input string, as long as it is bound between two underscores.

Left(REGEX_Replace([Input],".*\_(\d{8})\_.*","$1"),6)