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Throw an error in a MySQL trigger
... before insert on trigger_test
for each row
begin
declare msg varchar(128);
if new.id < 0 then
set msg = concat('MyTriggerError: Trying to insert a negative value in trigger_test: ', cast(new.id as char));
signal sqlstate '45000' set message_text = msg;
end if;
end
//
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Is there a case insensitive jQuery :contains selector?
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edited Dec 20 '11 at 16:54
answered Feb 8 '11 at 17:11
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Application Skeleton to support multiple screens
...escription Nominal value
ldpi low density 120 ppi
mdpi medium density 160 ppi
hdpi high density 240 ppi
xhdpi extra high density 320 ppi
Typically:
screen size has most impact on your app layouts
screen dens...
Is there a way to detect if a browser window is not currently active?
...mmunity refactoring it?
– Jacob
Apr 20 '17 at 11:24
1
@Jacob I'm happy you liked my solution. Fee...
Unusual shape of a textarea?
...many solutions, proposed in other posts. I think this one is currently (in 2013) the one which can be compatible with the largest number of browsers, because it doesn't need any CSS3 properties. However, the method will not work on browsers which doesn't support contentdeditable, be careful.
Soluti...
Seeking clarification on apparent contradictions regarding weakly typed languages
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209
UPDATE: This question was the subject of my blog on the 15th of October, 2012. Thanks for the ...
Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Apr 2 '09 at 6:22
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Javascript regex returning true.. then false.. then true.. etc [duplicate]
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/^[^-_]([a-z0-9-_]{4,20})[^-_]$/gi;
You're using a g (global) RegExp. In JavaScript, global regexen have state: you call them (with exec, test etc.) the first time, you get the first match in a given string. Call them again and you get the next...
Are static class variables possible in Python?
...ass value (e.g., u.i==6)
– Mark
Aug 20 '14 at 13:48
2
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Css height in percent not working [duplicate]
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20
height: 100% works if you give a fixed size to the parent element.
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