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How do I use variables in Oracle SQL Developer?
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Reference:
http://www.oracle.com/technetwork/testcontent/sub-var-087723.html SQL*Plus Substitution Variables, Christopher Jones, 2004
UPDATE substitution variables are a bit tricky to use, look:
define phone = '+38097666666';
select &phone from dual; -- plus is stripped as it is a number
s...
Ruby get object keys as array
...turns the array of keys of your Hash:
http://ruby-doc.org/core-1.9.3/Hash.html#method-i-keys
You'll find all the different methods available for each class.
If you don't know what you're dealing with:
puts my_unknown_variable.class.to_s
This will output the class name.
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How can one change the timestamp of an old commit in Git?
... See "DATE FORMATS" kernel.org/pub/software/scm/git/docs/git-commit.html
– Dustin
Mar 14 '13 at 21:31
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Fully custom validation error message with Rails
...if not in the comments? Here's the I18n guide: guides.rubyonrails.org/i18n.html
– Tyler Rick
Dec 15 '11 at 20:45
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SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...about the RIGHT place. cs.dartmouth.edu/~campbell/cs65/lecture05/lecture05.html
– Yousha Aleayoub
Apr 5 '16 at 13:12
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How can I present a file for download from an MVC controller?
...://acanozturk.blogspot.com/2019/03/custom-actionresult-for-files-in-aspnet.html
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Dealing with multiple Python versions and PIP?
...om/pypa/pip/issues/200
http://www.pip-installer.org/docs/pip/en/0.8.3/news.html#id4
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How to handle back button in activity
...oid-developers.blogspot.com/2009/12/back-and-other-hard-keys-three-stories.html
If you are using an older version to compile the code, replace android.os.Build.VERSION_CODES.ECLAIR by 5 (you can add a private int named ECLAIR for example)
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INSTALL_FAILED_NO_MATCHING_ABIS when install apk
...dragon 808 is actually based on ARM: tomshardware.com/reviews/lg-g4,4353-2.html ]. I fixed the error entering the AVD manager, selecting the simulated device that was giving me the error and clicking on Edit button where I set up an ARM (armeabi-v7a) architecture. After this change plus emulator reb...
搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
...以运行的，参考这个文章http://www.itpub.net/thread-1740982-1-1.html。后来突然看了一篇stackoverflow的文章终于顿悟了，mongodb本身设计的就是一个可以跨IDC的分布式数据库，所以我们应该把它放到大的环境来看。
假设四个节点被分成两个...