MySQL Forums
Forum List  »  Newbie

Re: Delete in IF or CASE function
Posted by: Vemsom Helst
Date: June 30, 2017 06:35AM

No there is a composite key. So one for System column and one for Signal_id column as if there wasn't for two columns there would be missing data.
Ah,like I said I don't have access to the network and cant log in now. But I know for a fact there was more than one key (believe when its more than one its Composite Key. Sorry for my bad SQL lingo..)

Options: ReplyQuote


Subject
Written By
Posted
Re: Delete in IF or CASE function
June 30, 2017 06:35AM


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.