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How to drop multiple columns in postgresql

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How do I delete/remove a shell function?

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Bash/sh - difference between && and ;

...ersion is more portable, e.g. will be supported by a bash-subset like Android's shell or so? 7 Answers ...
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git: How do I get the latest version of my code?

...eset the code git fetch origin git reset --hard origin/[tag/branch/commit-id usually: master] Solution 2: Delete the folder and clone again :D rm -rf [project_folder] git clone [remote_repo] Case 2: Care about local changes Solution 1: no conflicts with new-online version git fetch origin g...
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How to break out of a loop in Bash?

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Custom exception type

...ge: "Error detected. Please contact the <a href=\"mailto:sysadmin@acme-widgets.com\">system administrator</a>.", toString: function(){return this.name + ": " + this.message;} }; share | ...
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Difference between OperationCanceledException and TaskCanceledException?

...dn.microsoft.com/pfxteam/2012/03/05/… . Then if I throw an exception inside an await enumerable.ForEachAsync( async () => { throw new ApplicationException( "Test" ); } ); somehow it is 'changed' to a TaskCanceledException. Any idea how that might be? This is problem for me as I want to catch...
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What is the difference between 'git pull' and 'git fetch'?

...ng your working copy. I have even heard of people running git fetch periodically in a cron job in the background (although I wouldn't recommend doing this). A git pull is what you would do to bring a local branch up-to-date with its remote version, while also updating your other remote-tracking bran...
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Pretty-print C++ STL containers

... // Don't insert a delimiter if this is the first time the function is called if( _insertDelim ) (*_stream) << _delim; else _insertDelim = true; } (*_stream) << value; return *this; } pretty_ostr...
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Transmitting newline character “\n”

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