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How to do 3 table JOIN in UPDATE query?
... it had something to do with ON UPDATE CURRENT_TIMESTAMP, I just added manually the update and it fixed it, just saying if it happens to anyone else
– eric.itzhak
Jun 6 '16 at 13:35
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How do you test a public/private DSA keypair?
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This solution seems to work for all types of SSH-keys. I even managed to recover a misplaced public key with this approach.
– Jari Turkia
Jun 13 '18 at 6:37
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Detecting design mode from a Control's constructor
...ses field, but (i think) static classes fields initialized when you first called them, so not a safe solution..
– Ibrahim Ozdemir
Feb 19 '17 at 15:25
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How to convert an NSString into an NSNumber
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Use an NSNumberFormatter:
NSNumberFormatter *f = [[NSNumberFormatter alloc] init];
f.numberStyle = NSNumberFormatterDecimalStyle;
NSNumber *myNumber = [f numberFromString:@"42"];
If the string is not a valid number, then myNumber will be nil. If it is a valid number, then you now have all of...
http to https apache redirection
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I have actually followed this example and it worked for me :)
NameVirtualHost *:80
<VirtualHost *:80>
ServerName mysite.example.com
Redirect permanent / https://mysite.example.com/
</VirtualHost>
<VirtualHost _de...
Cleanest way to toggle a boolean variable in Java?
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That's...really obvious—oops! Don't know why I didn't think of it. Thanks.
– Kevin Griffin
Oct 22 '08 at 2:46
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Is there a /dev/null on Windows?
...file.
(I believe the same is true if you try to create a file programmatically, but I haven't tried it.)
In PowerShell, you want $null:
echo 1 > $null
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git pull aborted with error filename too long
...ates, looks like there is some additional script you need to run after installing mysysgit github.com/msysgit/git/pull/122#issuecomment-43653756
– Adam Grant
Aug 1 '14 at 18:36
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How can I get a favicon to show up in my django app?
... works well as an easy trick for getting favicons working when you don't really have other static content to host.
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How to check if a variable is not null?
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This check is actually not safe. If myvar is 0, false or any other falsy value the test will fail (if you only intend to check for not null). So only use this to check for not null if the variable can never have another falsy value.
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