Finding and extracting a substring

[#1]

Hi there.

I know that the wildmatch function allows to detect if a particular substring is inside a certain string but, would there be any way to extract that substring?

The string would be a text from an email subject field which sometimes includes (in a variable location) a reference number that always starts with Q2 and has a length of 10 characters (e.g. Q238832439). I'd need to get that 'Q238832439' extracted.

Any help or guidance will be appreciated.

Thanks.

M.

[#2]

Hi again.

Found something that seems to work:

    if(wildmatch(text_field,'*Q2*')=0,'NO','Q2'&left(subfield(text_field,'Q2',2),8)) as my_field;

It works as follows:

if the text field contains one of the references we are looking for it takes the part of the string to the right of 'Q2', then extracts 8 characters starting from the left and adds 'Q2' at the beginning.

Otherwise it includes the word 'NO' in my_field.

So kind of sorted.