LeBurt

ERDs are always a tad difficult when you haven't done that many. I'd be glad to help but first could you please give more details on what a "Project Allocation System" is? What does the system do? Who uses it?

I understand the problem differently. Here's my view, not in pseudo-code but just giving the overall logic. Problem 1: Get from the user a list of students but no test scores. When the student name is ZZZ, write the student names to a file along with 0,0,0 for test scores. …

I'll help, what's your issue?

Hi all, (this is a repost from [URL="http://www.daniweb.com/forums/thread112412.html"]here[/URL]) I'm working on a relational data model in which I'd like to store boolean expressions. I'm a little rusty so I'm humbly asking for a little push. For example, let's say I have the following boolean expression: [code]((A = 8 OR A …

Hi all, I'm using exec() to launch external commands from a web application under OS X Leopard. To put my problem in context, when I launch this: exec ("export", $output); I get this: export OLDPWD export PATH="/usr/bin:/bin:/usr/sbin:/sbin" export PWD="/Library/WebServer/Documents" export SHLVL="1" My problem is with PATH, I need to include …

Since it's the only place left with no error detection, how about trying: if (!mysql_select_db("users", $con)) die ("Database 'users' not found");

Did you give you file a .php extension or .htm? It needs .php in order to work.

As a brief introduction, my name is Burt, French Canadian (thus LeBurt), I live in Québec City, previously lived in Las Vegas 'coz my wife performs with Cirque du Soleil. I'm a computer scientist by training, telecom engineer by trade, programming enthusiast by default. I'm waaay behind in my science …

Joe, welcome to the field! I'll be glad to provide my 2¢ worth of experience. My first question to you: where (and I mean this in the geographical sense) do you see yourself working? Is it in an office, a hospital, a research facility, the government, outside in the wild?

Do you have any knowledge of web programming? Database design? I suggest you buy yourself a good book to get started, something like [URL="http://www.oreilly.com/catalog/webdbapps2/"]this[/URL] or [URL="http://books.google.com/books?id=u9cbIgaewfMC&printsec=frontcover&dq=web+development&sig=H5QEBJ92dxC7F-3Huk3E2pc0IUk#PPR13,M1"]this[/URL]. Read it all, complete the exercises, see if that gives you any ideas.

A good way to debug this is to run this command before you run the mysql_query: die ($query); It will list the content of the $query variable and stop the script. Could you post the result?

Here's a few questions in an attempt to clarify your problem: 1) Can a given User also be a Client and a Service Provider at certain times? 2) Inversely, are Service providers and Clients [U]always[/U] Users of the system? 3) Was there a reason to put the Personal Info in …

Further on the StudentSubjects table... You have a one-to-many relationship between StudentSubject and ExamResults. Is that a true representation of life, in other words can one student, for one subject, have more than one exam result (mid-term, finals, etc.)? If yes (which I suspect), the ExamResults table needs one more …