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Should each and every table have a primary key?

...ll fields involved in the link. Thus you ensure that you don't have two or more records describing one link. Besides the logical consistency issues, most RDBMS engines will benefit from including these fields in a unique index. And since any primary key involves creating a unique index, you should...
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How to use ? : if statements with Razor and inline code blocks

...t cases the solution of CD.. will work perfectly fine. However I had a bit more twisted situation: @(String.IsNullOrEmpty(Model.MaidenName) ? " " : Model.MaidenName) This would print me " " in my page, respectively generate the source  . Now there is a function Htm...
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Lock Android phone application to Portrait mode

...can edit your answer to format properly the code you posted, so it will be more human-readable. To do so, the code and the previous paragraph must be split by at least two linebreaks, and every line in the code block must be indented with at least 4 spaces. Please try this out by editing your answer...
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Save file to specific folder with curl command

... current directory and curls file to specificed location. Second one seems more simple. – Henry Zhu Mar 8 '15 at 6:46 ...
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The difference between Classes, Objects, and Instances

... I really appreciate your answer sir, and I almost got it, just one more question. We say-"Whenever the compiler hits the 0 argument constructor it creates a instance of a class.". In this context what is really created an instance or an object? An object I guess and we use the word "insta...
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PostgreSQL: Modify OWNER on all tables simultaneously in PostgreSQL

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How to use subprocess popen Python

...upplied data. But I am prepared to call a truce on that item. My point was more that there is no reason not to use shell=True except when using untrusted input. Simply stating that shell=True is not recommended is misleading. – Hans Then Sep 26 '12 at 16:52 ...
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What should I use Android AccountManager for?

... a Service / Alarm only available from API >= 7 (this doesn't matter anymore) Finally, if you use a SyncAdapter, seriously consider Firebase Cloud Messaging (previously Google Cloud Messaging) aka "push notifications" to have fresher updates and optimized battery usage. ...
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Regular expression to return text between parenthesis

... What if you'll have "(some text (some text in inner parenthesis) some more text)"? – Igor Pomaranskiy Jul 13 '16 at 12:17 5 ...
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Pythonic way to check if a list is sorted or not

... Looks like Python 3.x does not have xrange anymore, just use range. I get NameError: name 'xrange' is not defined when I run that code. I switched it to just use range instead of xrange and that works fine. See: stackoverflow.com/questions/15014310/… ...