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270 - NULL in MySQL
NULL is not a value - it's a condition. So if you try and write something "= NULL" you'll get an empty set rather than the results you're looking for. Try "IS NULL" instead. example Joining 2 tables connecting records that match mysql> select * from demo_people join demo_property on demo_peopl ....

269 - Free parking for short errands in Melksham
A bouquet for the local authority. Yes, that's not common I know, but I'm delighted that they've provided an hour of free parking in at least one of the local car parks as part of the generally upward price revision last weekend. I don't mind paying to park when I'm in town for a while, but the ol ....

268 - Information request forms, cleaning up spam
We've been discovered! Or rather ... our brochure request form has been discovered, just like the comment submission form to this diary has been discovered, by "spam engines". These "spam engines" locate web forms, then complete them with information about on line gaming, pharmacutical products, ....

267 - Searching security holes
You'll see from my post earlier this morning that I've added some "Out and about in Wiltshire" pages to our shared data system (Also known as a "wiki") on this site. And, I thought, "what better opportunity than to extend our site's search engine to include the database of information in that syste ....

266 - A beautiful place to live and learn
With the change of the clocks last weekend, it's now light into the evening. A lovely weekend had us visiting a number of local beauty spots and "snapping away" at some of the beautiful places that are within a few miles of here. I've added them so our shared data ("Wiki") system ... start in Melk ....

265 - Business practise, 2005 style
In the "bad old days", businesses had to spend far too much of their time chasing late and incorrect deliveries from their suppliers, and overdue payments from their customers. Perhaps it's just the business that we're in, but things do seem to have hugely improved on this front ... or perhaps we'r ....

264 - 100% Training
Just concluded a great week training ... all trainees arriving and departing by train. We're delighted to have a rail service to Melksham which, though sparse, fits our course schedule like a glove. 07:45 from Paddington => 09:12 Melksham, 17:02 Melksham => 18:44. Connections (this week) - Bristo ....

263 - Harmony
Some tasks have a natural positive harmony; I find that's the case with training where an enthusiastic tutor, trainees who are attending because they want to learn, a good piece of software as the subject for the course, and a quiet and well thought out learning environment all contribute to a posit ....

262 - A little bit of fun - the new Perl Quiz
How's your Perl knowledge? I've just updated our Perl Quiz where you can try 15 questions at a beginner, intermediate or advanced level and see how you get on. There's also a MySQL Quiz, a Tcl Quiz and a PHP Quiz available. We're styling the quizzes "just for fun". You're given 15 questions fro ....

261 - Putting a form online
I answered a question along the lines of "how much will it cost to put my [6 page] web form online" yesterday, and found myself coming up with a list of considerations, which I thought might be woth sharing as a checklist ... How many forms do you want your 6-pager converting into? (Don't do it all ....

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