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How to export table as CSV with headings on Postgresql?
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COPY products_273 TO '/tmp/products_199.csv' WITH (FORMAT CSV, HEADER);
as described in the manual.
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C/C++ check if one bit is set in, i.e. int variable
...if you want to hide bit manipulation, you can write a macro:
#define CHECK_BIT(var,pos) ((var) & (1<<(pos)))
and use it this way to check the nth bit from the right end:
CHECK_BIT(temp, n - 1)
In C++, you can use std::bitset.
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Razor view engine, how to enter preprocessor(#if debug)
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This didn't work for me at all- it produced "True" regardless of compilation mode. Jordan Gray's answer worked perfectly.
– Timothy Kanski
Feb 9 '17 at 16:14
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How can I detect if a browser is blocking a popup?
Occasionally, I've come across a webpage that tries to pop open a new window (for user input, or something important), but the popup blocker prevents this from happening.
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What is the equivalent of 'describe table' in SQL Server?
...u want, though unfortunately you have to query the views and join them manually.
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How to get IntPtr from byte[] in C#
... the Fixed keyword instead of using the GC
– goodguys_activate
Dec 17 '12 at 21:59
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Why does JQuery have dollar signs everywhere?
...ring your using noConflict (more below)
var divs = $("div"); // Find all divs
var divs = jQuery("div"); // Also find all divs, because
console.log($ === jQuery); // "true"
If you don't want to use the alias, you don't have to. And if you want $ to not be an alias for jQuery, you can use noC...
R: rJava package install failing
When installing rJava using the install.packages("rJava") command I get the following error:
16 Answers
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When is TCP option SO_LINGER (0) required?
...void large numbers of connections sitting in the TIME_WAIT state, tying up all the available resources on a server.
When a TCP connection is closed cleanly, the end that initiated the close ("active close") ends up with the connection sitting in TIME_WAIT for several minutes. So if your protocol i...
Convert Array to Object
...bject.assign:
The Object.assign() method is used to copy the values of all
enumerable own properties from one or more source objects to a target
object. It will return the target object.
Object.assign({}, ['a','b','c']); // {0:"a", 1:"b", 2:"c"}
The own length property of the array is no...