Hi guys,
I'm trying to create a function that looks at a postcode, then checks it against a field and returns an ID from another table. The problem I'm having is that the field it needs to look up against contains a list of possible postcodes with wildcards. A good example would be:
N1-99, N1?, NW1?, NW*, BR* In this instance, ? represents any alpha character, * represents any character, and #-## represents all numbers between and including # & ## (so, N1 - N99).
I've gotten as far as stripping out the first part of a postcode from a string, but I don't really know the best angle to come at this from. I'd guess the first thing I need to do is break up the lookup list and check each entry individually against the postcode, but I'm at a bit of a loss as to where I should go from there.
I've attached a list of IDs and their associated...