[Lazarus] Lazarus, Jedi etc.
Michael Van Canneyt
michael at freepascal.org
Mon Jul 15 17:42:59 CEST 2013
On Mon, 15 Jul 2013, Henry Vermaak wrote:
> On Mon, Jul 15, 2013 at 03:44:42PM +0100, Graeme Geldenhuys wrote:
>> On 2013-07-15 15:06, Henry Vermaak wrote:
>> > Could you explain why the above is bad for those of us that aren't DB
>> > experts? To my untrained eye it looks fairly plausible, so I'm
>> > obviously missing something.
>> I never inserted data into column C, so MySQL decided on its own that it
>> should magically contain the value 0 — inventing data! Last time I
>> checked 0 <> null in SQL terms either.
> I seem to remember something about table columns having default values
> in the definition, so perhaps column C defaults to 0?
It should only do that when specifically instructed.
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