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Delete duplicate rows from small table
...ename) t
WHERE t.rnum > 1);
provided by Postgres wiki:
https://wiki.postgresql.org/wiki/Deleting_duplicates
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What is the best way to tell if a character is a letter or number in Java without using regexes?
...space
if ((ch == ' ') || (ch =='\n') || (ch == '\t'))
// ...
Source: https://docs.oracle.com/javase/tutorial/i18n/text/charintro.html
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C++, copy set to vector
...
back_inserter may be used but it will invoke push_back() on the vector
(https://en.cppreference.com/w/cpp/iterator/back_insert_iterator).
emplace_back() is more efficient because it avoids creating a temporary when using push_back(). It is not a problem with trivially
constructed types but will b...
Python: What OS am I running on?
... and architectures (x86, x64, Itanium, power pc, sparc) is available here: https://github.com/hpcugent/easybuild/wiki/OS_flavor_name_version
Ubuntu 12.04 server for example gives:
Python version: ['2.6.5 (r265:79063, Oct 1 2012, 22:04:36) ', '[GCC 4.4.3]']
dist: ('Ubuntu
Spring RestTemplate GET with parameters
....com/hotels/{hotel}/rooms/{room}",
String.class, vars);
Reference: https://docs.spring.io/spring/docs/current/spring-framework-reference/integration.html#rest-resttemplate-uri
If you look at the JavaDoc for RestTemplate and search for "URI Template", you can see which methods you can use pl...
Android - get children inside a View?
...or the children. The code is small and simple and can be found at github: https://github.com/jkincali/Android-LinearLayout-Parser
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windows下捕获dump之Google breakpad_client的理解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...入门级demo。
（4）、breakpad服务端dump处理的开源代码：https://github.com/mozilla/socorro（我没看，不确定是否靠谱）
（5）、breakpad官网的文档估计比较旧了，但是思路还是正确的。符号文件部分没有看，因为比较深，而我目前又没...
HTML table td meaning
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
rmagick gem install “Can't find Magick-config”
...izing a script for ImageMagick installation on github.
magick-installer ( https://github.com/maddox/magick-installer )
It made a fresh install of ImageMagick, and the RMagick 2.12.2 gem then installed perfectly via bundler.
Thanks to Hulihan Applications for confirming that it was most likely a m...
Transaction marked as rollback only: How do I find the cause
...
Found a good explanation with solutions: https://vcfvct.wordpress.com/2016/12/15/spring-nested-transactional-rollback-only/
1) remove the @Transacional from the nested method if it does not really require transaction control. So even it has exception, it just bubbl...