2009/2/4 tedd <tedd@xxxxxxxxxxxx>: > Hi gang: > > I need some fog removed. > > I have a problem where I have an unlimited number of tutors teaching an > unlimited number of courses. When I call upon a tutor, I want to see all the > courses they teach. > > In my old days, I would just set up a linked list of courses and attach it > to the tutor (another linked list). As a tutor adds courses, I would just > add the course to the end of the linked list. If the tutor deletes a course, > then I would remove it from the list by changing a single pointer. If I > needed a list of all the courses the tutor taught, I would just run down the > linked list pulling them out as needed. > > But now I have to think in terms of records in a database. I'll eventually > figure it out, but what are your suggestions/solutions? > > I understand that I can have one record set up for each tutor, and another > record set up for each course, and then tie the two together by another > record like an assignment. That way I can have as many assignments as I want > tying courses to tutors. > > It that the way you guys would do it? > > Thanks, > > tedd > -- > ------- > http://sperling.com http://ancientstones.com http://earthstones.com > Hi, tedd! Though you might think that this is a stupid task I can recommend you to draw a little entity-relationship model. It quite helps you to overlook the structure of the database that you want to design. It has got different relations between the data and defines a way to represent those in the database. If you are interested in this you can look in wikipedia here: http://en.wikipedia.org/wiki/Entity-relationship_model Since I heard from these models the first time I always use them and I had no more database changes after I started coding since then. Greetings -- Currently developing a browsergame... http://www.p-game.de Trade - Expand - Fight Follow me at twitter! http://twitter.com/moortier -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
