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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...
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...
apache redirect from non www to www
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Greg HewgillGreg Hewgill
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How to Join to first row
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edited May 30 at 23:35
Braiam
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a...
How to use 'cp' command to exclude a specific directory?
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edited Apr 24 '19 at 13:32
JorgeM
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answered Feb 9 '13 at 15:04
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Easy way to convert Iterable to Collection
In my application I use 3rd party library (Spring Data for MongoDB to be exact).
19 Answers
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Removing duplicate objects with Underscore for Javascript
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13 Answers
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How do I grant myself admin access to a local SQL Server instance?
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edited May 30 '19 at 14:52
Jim G.
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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...