MySQL Forums
Forum List  »  Newbie

Re: conditional return of data in SELECT
Posted by: Edward Lipchus
Date: January 26, 2021 11:26PM

The second table is only those towns that really are part of a larger town. Most towns will not have an entry in the second table. For example, people in Boston will say they live in Dorchester, but while Dorchester used to be a separate town but is now really a part of Boston. If a person moves to another town, no additional entry is required. Either the new town is self-sufficient, or it is a sub-town. If it is a sub-town, it has to be added only if that sub-town has never been used before.

Phil, in a parallel reply, gave me the code answer, and it works. Thank you very much for your help.

EdL

Options: ReplyQuote


Subject
Written By
Posted
Re: conditional return of data in SELECT
January 26, 2021 11:26PM


Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.