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How to export table as CSV with headings on Postgresql?
...an also write a query for getting only selected column data.
COPY (select id,name from tablename) TO 'filepath/aa.csv' DELIMITER ',' CSV HEADER;
with admin privilege
\COPY (select id,name from tablename) TO 'filepath/aa.csv' DELIMITER ',' CSV HEADER;
...
Function passed as template argument
...t;< "Result is " << temp << std::endl;
}
which can now be called as either:
doOperation(add2);
doOperation(add3());
See it live
The problem with this is that if it makes it tricky for the compiler to inline the call to add2, since all the compiler knows is that a function pointe...
How to flip windows in vim? [duplicate]
If I have 2 horizontally split windows, how to rotate them to get 2 vertically split windows?
4 Answers
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How would one write object-oriented code in C? [closed]
...ou can, we were doing that sort of stuff years before C++ came about.
Basically you use a struct to hold both the data and a list of function pointers to point to the relevant functions for that data.
So, in a communications class, you would have an open, read, write and close call which would be ...
Writing files in Node.js
...ree ways to write a file:
fs.write(fd, buffer, offset, length, position, callback)
You need to wait for the callback to ensure that the buffer is written to disk. It's not buffered.
fs.writeFile(filename, data, [encoding], callback)
All data must be stored at the same time; you cannot perform se...
How can I use console logging in Internet Explorer?
...t(false, 'YOU FAIL');
</script>
Also, you can clear the Console by calling console.clear().
NOTE: It appears you must launch the Developer Tools first then refresh your page for this to work.
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Bootstrap combining rows (rowspan)
...n 2</div>
</div>
</div>
<div class="container-fluid">
<div class="row-fluid">
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<div class="short-div" style="background-color:#999">Span 6</div>
<div class="short-div">Sp...
How do I enable/disable log levels in Android?
...writable, it will likely be ignored.
Finally, you can set them programmatically using the System.setProperty() method.
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How to properly override clone method?
...ly, as others have also suggested, you can perhaps implement clone without calling super.clone.
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What does “|=” mean? (pipe equal operator)
...
so
myFlags |= DEFAULT_LIGHTS;
simply means we add a flag.
And symmetrically, we test a flag is set using & :
boolean hasVibrate = (DEFAULT_VIBRATE & myFlags) != 0;
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