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Select Row number in postgres

How to select row number in postgres. 1 Answer 1 ...
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Removing array item by value

... It can be accomplished with a simple one-liner. Having this array: $arr = array('nice_item', 'remove_me', 'another_liked_item', 'remove_me_also'); You can do: $arr = array_diff($arr, array('remove_me', 'remove_me_also')); And the value of $arr will be: array(...
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Error Code: 2013. Lost connection to MySQL server during query

I got the Error Code: 2013. Lost connection to MySQL server during query error when I tried to add an index to a table using MySQL Workbench. I noticed also that it appears whenever I run long query. ...
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How can I return NULL from a generic method in C#?

...his (dummy) code (yes I'm aware IList has predicates, but my code is not using IList but some other collection, anyway this is irrelevant for the question...) ...
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Where are $_SESSION variables stored?

... The location of the $_SESSION variable storage is determined by PHP's session.save_path configuration. Usually this is /tmp on a Linux/Unix system. Use the phpinfo() function to view your particular settings if not 100% sure by creating a file with this content in the DocumentRoot...
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One Activity and all other Fragments [closed]

I am thinking of implementing one screen with Activity and all other sreens with Fragments and managing all the fragments thru the activity . ...
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Squash the first two commits in Git? [duplicate]

With git rebase --interactive <commit> you can squash any number of commits together into a single one. 9 Answers ...
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How do I delete specific lines in Notepad++?

I'm cleaning up some code files (C#) and want to remove the regions. And I would like to delete all the lines that have the string '#region'. That's just an example, and I can think of several more uses, but is that even possible? ...
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Cancel split window in Vim

I have split my windows horizontally. Now how can I return to normal mode, i.e. no split window just one window without cancelling all of my open windows. I have 5 and do not want to "quit", just want to get out of split window. ...
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Why don't structs support inheritance?

I know that structs in .NET do not support inheritance, but its not exactly clear why they are limited in this way. 10 An...