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PostgreSQL create table if not exists
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CREATE TABLE myschema.mytable (i integer);
END IF;
END
$func$;
Call:
SELECT create_mytable(); -- call as many times as you want.
Notes:
The columns schemaname and tablename in pg_tables are case-sensitive. If you double-quote identifiers in the CREATE TABLE statement, you need ...
How to find unused images in an Xcode project?
Has anyone a one-line to find unused images in an Xcode project? (Assuming all the files are referenced by name in code or the project files - no code generated file names.)
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How do you configure Django for simple development and deployment?
...leased which is probably a better option for most people than doing it manually.
If you would prefer to do things manually, my earlier answer still applies:
I have multiple settings files.
settings_local.py - host-specific configuration, such as database name, file paths, etc.
settings_developme...
Why do most fields (class members) in Android tutorial start with `m`?
...art with a lower case letter.
Public static final fields (constants) are ALL_CAPS_WITH_UNDERSCORES.
Note that the linked style guide is for code to be contributed to the Android Open Source Project.
It is not a style guide for the code of individual Android apps.
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Can't install Ruby under Lion with RVM – GCC issues
...extra parameter rvm install 1.9.3 --with-gcc=clang --with-readline-dir=$rvm_path/usr it installed successfully.
– leandro
Nov 27 '11 at 13:01
7
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No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin '…' is therefor
...der Instead of using setHeader method,
response.addHeader("Access-Control-Allow-Origin", "*");
* in above line will allow access to all domains.
For allowing access to specific domain only:
response.addHeader("Access-Control-Allow-Origin", "http://www.example.com");
Check this blog post.
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How to initialize a two-dimensional array in Python?
...beginning python and I'm trying to use a two-dimensional list, that I initially fill up with the same variable in every place. I came up with this:
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eclipse won't start - no java virtual machine was found
Eclipse was running fine yesterday (and has been since I installed it about a year ago). Now all the sudden I'm getting the following error on startup:
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How to get current date & time in MySQL?
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You can use NOW():
INSERT INTO servers (server_name, online_status, exchange, disk_space, network_shares, c_time)
VALUES('m1', 'ONLINE', 'exchange', 'disk_space', 'network_shares', NOW())
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Call to undefined method mysqli_stmt::get_result
...r... if it isn't installed on your webspace you will have to work with BIND_RESULT & FETCH!
https://secure.php.net/manual/en/mysqli-stmt.bind-result.php
https://secure.php.net/manual/en/mysqli-stmt.fetch.php
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