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Generating a UUID in Postgres for Insert statement?
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Without extensions (cheat)
SELECT uuid_in(md5(random()::text || clock_timestamp()::text)::cstring);
output>> c2d29867-3d0b-d497-9191-18a9d8ee7830
(works at least in 8.4)
Thanks to @Erwin Brandstetter for clock_timestamp() explanation.
If you need a valid v4 UUID
SELECT uuid_in(o...
What languages are Windows, Mac OS X and Linux written in?
I was just wondering who knows what programming languages Windows, Mac OS X and Linux are made up from and what languages are used for each part of the OS (ie: Kernel, plug-in architecture, GUI components, etc).
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How to convert byte array to string and vice versa?
I have to convert a byte array to string in Android, but my byte array contains negative values.
22 Answers
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Use Expect in a Bash script to provide a password to an SSH command
I'm trying to use Expect in a Bash script to provide the SSH password. Providing the password works, but I don't end up in the SSH session as I should. It goes back strait to Bash.
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How to pass data from 2nd activity to 1st activity when pressed back? - android
I've 2 activities, Activity1 and Activity2 .
9 Answers
9
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Should I use a class or dictionary?
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The dict is 1.5 times faster than the namedtuple and twice as fast as a class without slots. Check my post on this answer.
– alexpinho98
Apr 30 '13 at 19:57
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How to create a GUID/UUID using iOS
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It change every time I run app in simulator.
– Gajendra K Chauhan
Apr 29 '16 at 12:47
add a comment
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How to set session timeout in web.config
I have tried very hard but cannot find a solution on how to set session timeout value for in-process session for an ASP.Net web application.
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Difference between a Structure and a Union
...g your only going to need to use one but you don't know which one until runtime - so the union allows you to do that. Thanks
– user12345613
Feb 21 '12 at 0:49
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Calling method using JavaScript prototype
Is it possible to call the base method from a prototype method in JavaScript if it's been overridden?
14 Answers
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