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Should each and every table have a primary key?

... Always best to have a primary key. This way it meets first normal form and allows you to continue along the database normalization path. As stated by others, there are some reasons not to have a primary key, but most will not be ha...
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Do a “git export” (like “svn export”)?

... This one is the option I like best. It has the additional benefit that it also works on bare repositories. – innaM Aug 31 '09 at 14:34 ...
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What is the difference between task and thread?

...ing can lead to a complex code management I will suggest to read from MSDN(Best in world) always Task Thread
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Unit testing void methods?

What is the best way to unit test a method that doesn't return anything? Specifically in c#. 11 Answers ...
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How to change max_allowed_packet size

...now how to find the my.ini file on your PC. For windows users, I think the best way is as follows: Win+R(shortcut for 'run'), type services.msc, Enter You could find an entry like 'MySQL56', right click on it, select properties You could see sth like "D:/Program Files/MySQL/MySQL Server 5.6/bin\my...
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AngularJS - wait for multiple resource queries to complete

... The solution from Ben Lesh is the best but it's not complete. If you need to handle error conditions--and, yes, you do--then you must use the catch method on the promise API like this: $q.all([ doQuery('billing'), doQuery('shipping') ]).then(function(d...
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CATALINA_OPTS vs JAVA_OPTS - What is the difference?

... if you're setting environment variables for use only by Tomcat, you'll be best advised to use CATALINA_OPTS, whereas if you're setting environment variables to be used by other java applications as well, such as by JBoss, you should put your settings in JAVA_OPTS. Source: CATALINA_OPTS v JAVA_OPTS...
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How does one generate a random number in Apple's Swift language?

...wift book provided an implementation of a random number generator. Is the best practice to copy and paste this implementation in one's own program? Or is there a library that does this that we can use now? ...
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Difference between Ctrl+Shift+F and Ctrl+I in Eclipse

... i think this is the correct answer because this is best used when you specify a formatter in eclipse. – Lou Morda Oct 27 '14 at 4:39 ...
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Using Server.MapPath() inside a static field in ASP.NET MVC

...cture Lucene.Net usage in an ASP.NET MVC application and was told that the best method is to declare the my IndexWriter as public static , so that it can be re-used. ...