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Adding 'serial' to existing column in Postgres
I have a small table (~30 rows) in my Postgres 9.0 database with an integer ID field (the primary key) which currently contains unique sequential integers starting at 1, but which was not created using the 'serial' keyword.
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How can Perl's print add a newline by default?
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Perl 6 has the say function that automatically appends \n.
You can also use say in Perl 5.10 or 5.12 if you add
use feature qw(say);
to the beginning of your program. Or you can use Modern::Perl to get this and other features.
See perldoc feature for more detai...
psql: FATAL: database “” does not exist
... it in the past on other machines but it's giving me some trouble when installing on my macbook. I've installed the application and I ran:
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PHP calculate age
...is not safe to rely on the system's timezone settings, even when I add date_default_timezone_set('Europe/Brussels');
– stef
Sep 23 '10 at 9:01
1
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NoSQL - MongoDB vs CouchDB [closed]
...~2.5Gb
Text search integrated
GridFS to store big data + metadata (not actually an FS)
Data center aware
Best used: If you need dynamic queries. If you prefer to define indexes, not map/reduce functions. If you need good performance on a big DB. If you wanted CouchDB, but your data changes too muc...
How to write character & in android strings.xml
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For special character I normally use the Unicode definition, for the '&' for example: \u0026 if I am correct. Here is a nice reference page: http://jrgraphix.net/research/unicode_blocks.php?block=0
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ManyRelatedManager object is not iterable
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Try
matches = [val for val in Store.attribute_answers.all() if val in WishList.attribute_answers.all()]
Notice the parenthesis at the end of WishList.attribute_answers.all(). Adding the parenthesis invokes the all function to return an iterable.
If you include the parenthesi...
Remove first element from $@ in bash [duplicate]
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Use shift?
http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_09_07.html
Basically, read $1 for the first argument before the loop (or $0 if what you're wanting to check is the script name), then use shift, then loop over the remaining $@.
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NPM doesn't install module dependencies
...ere are several open issues for this case in the npm repository:
npm install should recursively check/install dependencies https://github.com/npm/npm/issues/1341 (closed)
local private module dependencies https://github.com/npm/npm/issues/2442 (closed)
In the first one people list several workar...
Git: can I suppress listing of 'modified content'/dirty submodule entries in status, diff, etc?
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For the .gitignore file, there is a private version called exclude, located in .git/info/, which is not version handled. Is there a corresponding file for the .gitmodules file, that will let you suppress changes in the submodule only in your instance of the parent repository, w...