Re: table join

On Tuesday, September 04, 2012 06:27:43 PM David McGlone wrote: > Hi everyone > > I'm having a whole lot of fun playing with this project. It just keeps > expanding and taking me to new territory and I'm really enjoying it. I got a > quick question though. I've been playing around with table joins and I > tried to join based on the ID but I quickly realized this is not a good > solutions, because the ID's in each table aren't always going to match. > This is a simple join that I was messing around with: > > $sql = 'SELECT * FROM inventory, extended_info WHERE inventory.id = > extended_info.id'; > > So I'm wondering if I should figure a way to always make my ID's in each > table match, which is probably not possible or I'm thinking a unique field > for both tables and use that to match up the records, but I know zilch > about cars (funny considering what I chose to start with) and I couldn't > think of 1 thing that would be unique to match up... LOL so what would be a > wise way to go about this type of thing. > > PS I'm not looking for code, just some feedback on logic. I don't think I should reply to my own post, but I had a light bulb go off and I'm thinking maybe I should get the last inserted record and work it from there. Is that smart? -- Regards David M.