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2749 - Delegate Question - defining MySQL table relationships as you create the tables
Q - Can define how tables are linked (joined together) when you set them up in MySQL, rather than having to specify the join each time that you SELECT data from the tables? What a great (and logical) idea, but it's not straightforward / automatically available. The current / default system in the ....

2748 - Monitoring the success and traffic of your web site
If you're looking after a shopping centre, a major store, or a specialist shop on Bank Street, you'll want to know roughly how many people you've got "in", roughly what they're doing, and whether there's going to be a rush in a few minutes. And so it should be with a website - be it a virtual shop w ....

2747 - Containment, Associative Objects, Inheritance, packages and modules
Containment is where one object contains other objects - and it happens all over the place. A "town" object may, in a program, contain a number of "hotel" objects, a "location" object, zero or more "leisure" objects, "public transport hub" objects and so on. Containment is different to inheritanc ....

2746 - Model - View - Controller demo, Sqlite - Python 3 - Qt4
The Model - View - Controller approach to application design keeps the Graphic User Interface (the view) separate from the database (the model), with the controller in between the two, describing how the data is displayed, and how changes to the data are saved away in the database. By separating th ....

2745 - Connecting Python to sqlite and MySQL databases
For developing a Python application, and for light use, the SQLite database may be a good choice ... but then you may want to be able to expand the system to use a central database with a more classic server such as MySQL at a later date. Using Polymorphism in Python, and with a careful choice of w ....

2744 - PyQt (Python and Qt) and wxPython - GUI comparison
We're running a tailored 3 day Python course at present, using Python 3 if it's practical, and today we compared the two contenders for the "Top GUI" prize - that's Python with Qt (PyQt) and wxPython. Now wxPython isn't yet available in Python 3, but PyQt is - although some of the documentation ref ....

2743 - Public Open Source Training Courses running this summer and autumn in Melksham
We've got a continuing series of Open Source courses scheduled through the summer ... as I write (late April) we still have availability on all public courses, although in one or two cases our rooms at Well House Manor are all spoken for. Python - 2 courses, each every 2 months - one for newcomers ....

2742 - A simple server benchmark script
Here's one of those examples where I found myself illustrating so many interesting features of PHP in one piece of code that I almost lost count! <?php # Web Site performance test page   if ($_REQUEST[pub] == "magpies") { $wowser = `ab -n100 -c5 http://www.example.net/robots.txt`; header("C ....

2741 - What is a factory?
A Factory is somewhere that takes raw material, and converts into objects of some value. And so it is in Object Oriented Programming, where a "factory method" takes a chunk of raw material and makes an object out of it. It may differ from a constructor in that we may not know what type of object ....

2740 - Melksham Hustings at George Ward School
For the first time in my life, I attended election hustings last night in Melksham - at George Ward School, where six of the eight candidates for MP in the Chippenham Constituency gave a three minute intro to themselves and their policies, then answered for a minute each on pre-selected questions fr ....

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This page is from the web site of Well House Consultants who provide Open Source computer training. Program written / developed as a demonstration during a PHP course. The example is in module H113

Training sample © 2024, WELL HOUSE CONSULTANTS LTD
This is http://www.wellho.net/demo/mqclim.php
See source code here • More examples - same topic here
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