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Fastest way to check if string contains only digits
...urn false;
}
return true;
}
Will probably be the fastest way to do it.
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How to create composite primary key in SQL Server 2008
I want to create tables in SQL Server 2008, but I don't know how to create composite primary key. How can I achieve this?
8...
How to fix Git error: object file is empty?
...for me... at least temporarily.
Step 1: Make a backup of .git (in fact I do this in between every step that changes something, but with a new copy-to name, e.g. .git-old-1, .git-old-2, etc.):
cp -a .git .git-old
Step 2: Run git fsck --full
nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ ...
Remove elements from collection while iterating
...books.removeAll(found);
This is supposing that the operation you want to do is "delete".
If you want to "add" this approach would also work, but I would assume you would iterate over a different collection to determine what elements you want to add to a second collection and then issue an addAll...
Removing duplicate rows from table in Oracle
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Use the rowid pseudocolumn.
DELETE FROM your_table
WHERE rowid not in
(SELECT MIN(rowid)
FROM your_table
GROUP BY column1, column2, column3);
Where column1, column2, and column3 make up the identifying key for each record. You might list al...
Disable Rails SQL logging in console
... .irbrc, which is basically .bashrc for the Rails console. in fact you can do just about anything in .irbrc if you want, e.g., syntax coloring, history, edit code in vi and then execute it in the Rails console, etc. check my gem utility_belt if you're on Ruby 1.8 or the Ruby 1.9 port called flyrb
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UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
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viewDidLoad is things you have to do once. viewWillAppear gets called every time the view appears. You should do things that you only have to do once in viewDidLoad - like setting your UILabel texts. However, you may want to modify a specific part of the view...
What is the difference between g++ and gcc?
...hich libraries they link against automatically.
According to GCC's online documentation link options and how g++ is invoked, g++ is equivalent to gcc -xc++ -lstdc++ -shared-libgcc (the 1st is a compiler option, the 2nd two are linker options). This can be checked by running both with the -v option ...
Plugin execution not covered by lifecycle configuration (JBossas 7 EAR archetype)
...o need to add additional config information for M2E that tells M2E what to do when the build is run in Eclipse, e.g. should the plugin execution be ignored or executed by M2E, should it be also done for incremental builds, ... If that information is missing, M2E complains about it by showing this er...
How to post pictures to instagram using API
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Well if there is NO way of doing it, then I don't suppose there is 'another' way.
– Albzi
Sep 17 '13 at 9:08
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