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Is there any difference between “!=” and “” in Oracle Sql?
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According to this article, != performs faster
http://www.dba-oracle.com/t_not_equal_operator.htm
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Selecting only first-level elements in jquery
... of an element E.
Tells JQuery to look only for explicit children.
http://www.w3.org/TR/CSS2/selector.html
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How do you install Boost on MacOS?
... current macOS as of this writing:
Download the the .tar.gz from https://www.boost.org/users/download/#live
Unpack and go into the directory:tar -xzf boost_1_50_0.tar.gz
cd boost_1_50_0
Configure (and build bjam):
./bootstrap.sh --prefix=/some/dir/you/would/like/to/prefix
Build:
./b2
Install:./b...
SQL Server Management Studio, how to get execution time down to milliseconds
... thing and stumbled across the following link which was brilliant:
http://www.sqlserver.info/management-studio/show-query-execution-time/
It shows three different ways of measuring the performance. All good for their own strengths. The one I opted for was as follows:
DECLARE @Time1 DATETIME
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Why are private fields private to the type, not the instance?
...o reason to choose one way or the other (esp. when considering that Eiffel.NET can do this with IL, even with multiple inheritance, there's no inherent reason not to provide this feature).
Of course, it's a matter of taste and as others already mentioned, quite some methods might be harder to write...
How do I update devDependencies in NPM?
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Install npm-check-updates (https://www.npmjs.org/package/npm-check-updates), then jump into your project folder and run:
npm-check-updates
And to update and save changes to your package.json file:
npm-check-updates -u
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How to show current time in JavaScript in the format HH:MM:SS?
...TimeString();
This will display e.g.:
"11:33:01"
I found it on http://www.w3schools.com/jsref/jsref_tolocaletimestring.asp
var d = new Date();
var n = d.toLocaleTimeString();
alert("The time is: \n"+n);
sha...
ItemsControl with horizontal orientation
... link, including an example on how to do the scrolling vertically:
http://www.technical-recipes.com/2017/how-to-orient-wrappanel-items-within-itemscontrol-lists-vertically-and-horizontally/
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Refreshing web page by WebDriver when waiting for specific condition
...cuteScript("history.go(0)");
For live code, please refer the link http://www.ufthelp.com/2014/11/Methods-Browser-Refresh-Selenium.html
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How to pass optional arguments to a method in C++?
... 1 2 3
Values: 1 2 30
Values: 1 20 30
Values: 10 20 30
Reference: http://www.learncpp.com/cpp-tutorial/77-default-parameters/
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