Subject Re: SIMILAR TO
Author Bert_Herngreen
I just found out:

select 1 from rdb$database where ('3.4' similar to '[0-9]+.[0-9]+')

works, so the dot seems not have to be escaped, but what is the difference then between [0-9] and [:digit:]?

According to:, DIGIT means All characters that are numeric digits (0-9)

So I expected this to be the same.