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Primary key or Unique index?
...ble1 (foo, bar) VALUES (2, 2); -- OK
INSERT INTO table1 (foo, bar) VALUES (3, 1); -- OK
INSERT INTO table1 (foo, bar) VALUES (1, 4); -- Fails!
Duplicate entry '1' for key 'ux_table1_foo'
The last insert fails because it violates the unique index on column foo when it tries to insert the value 1 i...
Moving Files into a Real Folder in Xcode
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brandonscriptbrandonscript
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Is there a built in function for string natural sort?
Using Python 3.x, I have a list of strings for which I would like to perform a natural alphabetical sort.
18 Answers
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How do you use an identity file with rsync?
...val $(ssh-agent) # Create agent and environment variables
ssh-add ~/.ssh/1234-identity
ssh-agent is a user daemon which holds unencrypted ssh keys in memory. ssh finds it based on environment variables which ssh-agent outputs when run. Using eval to evaluate this output creates the environment v...
Is there a job scheduler library for node.js? [closed]
...ary that would let me schedule some function to be ran at certain time (15:30 for example, not x hours from now etc)? If there isn't this kind of library how this should be implemented? Should I just set callback to be called every second and check the time and start jobs scheduled for the time or w...
Easier way to create circle div than using an image?
...{
width: 100px;
height: 100px;
background: yellow;
border: 3px solid red;
}
.type2 {
width: 50px;
height: 50px;
background: #ccc;
border: 3px solid #000;
}
.type3 {
width: 500px;
height: 500px;
background: aqua;
border: 30px solid blue;
}
HTML:
<...
Best way to parse command line arguments in C#? [closed]
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324
votes
I would strongly suggest using NDesk.Options (Documentation) and/or Mono.Op...
How to restart Activity in Android
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edited Aug 20 '13 at 23:07
answered Oct 20 '10 at 4:44
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in_array() and multidimensional array
...writing my own :)
– Liam W
Jul 19 '13 at 14:42
1
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scp with port number specified
...ow POSIX standard applications parse command line options using the getopt(3) set of C functions.
For more details with regard to command line ordering and processing, please read the getopt(1) manpage using:
man 1 getopt
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