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mysql Foreign key constraint is incorrectly formed error
...ISAM engine. It's a silly mistake, which I fixed with:
ALTER TABLE parent_table ENGINE=InnoDB;
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how to read System environment variable in Spring applicationContext
...use
<util:properties id="dbProperties"
location="classpath:config_#{systemProperties['env']}/db.properties" />
Combined with java ... -Denv=QA should solve your problem.
Note also a comment by @yiling:
In order to access system environment variable, that is OS level
variables a...
How do I extract the contents of an rpm?
... rpm2cpio commmand? See the example below:
$ rpm2cpio php-5.1.4-1.esp1.x86_64.rpm | cpio -idmv
/etc/httpd/conf.d/php.conf
./etc/php.d
./etc/php.ini
./usr/bin/php
./usr/bin/php-cgi
etc
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Set android shape color programmatically
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Thanks .. saved my world.
– sid_09
May 4 '16 at 10:20
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Array to String PHP?
... This is good unless you have nested arrays - which can happen with $_POST if you're using array-named form inputs.
– Leith
Oct 24 '16 at 4:47
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List of All Locales and Their Short Codes?
I'm looking for a list of all locales and their short codes for a PHP application I am writing. Is there much variation in this data between platforms?
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How do I replace a git submodule with another repo?
... file
Delete the relevant section from .git/config
Run git rm --cached path_to_submodule (no trailing slash)
Commit and delete the now untracked submodule files
Now, add the new submodule with the --name flag. This will give git an alternate name to reference in .git/config for the submodule, to ...
What's the difference between an argument and a parameter?
... the parameter.
A bit more info on:
http://en.wikipedia.org/wiki/Parameter_(computer_science)#Parameters_and_arguments
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普通码农和CTO之间的差距，就是这7点了 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...那么我们的沟通能力应该足够我们搞定“萌妹子”的。^_^
学习技术而不是工具
在新框架，新方法，新工具横行的今天我们很难判断出哪些是“技术”，哪些是“工具”。我个人认为程序员不存在——Java程序员、Python程序员、A...
How to insert a SQLite record with a datetime set to 'now' in Android application?
...QL so you can enter a raw SQL query.
mDb.execSQL("INSERT INTO "+DATABASE_TABLE+" VALUES (null, datetime()) ");
Or the java date time capabilities :
// set the format to sql date time
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = new Date();
ContentValue...