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Difference between Select Unique and Select Distinct
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SELECT UNIQUE is old syntax supported by Oracle's flavor of SQL. It is synonymous with SELECT DISTINCT.
Use SELECT DISTINCT because this is standard SQL, and SELECT UNIQUE is non-standard, and in database brands other than Oracle, SELECT UNIQUE may not be recog...
What is lexical scope?
... access its outer levels.
There is another way, called dynamic scope used by the first implementation of Lisp, again in a C-like syntax:
void fun()
{
printf("%d", x);
}
void dummy1()
{
int x = 5;
fun();
}
void dummy2()
{
int x = 10;
fun();
}
Here fun can either access x i...
SQLite error 'attempt to write a readonly database' during insert?
... Also the db file and the directory it resides in must be owned by 'www-data' on linux boxes.
– anisbet
Jan 8 '15 at 21:28
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Best way to specify whitespace in a String.Split operation
...cters are assumed to be the delimiters. White-space characters are defined by the Unicode standard and return true if they are passed to the Char.IsWhiteSpace method.
Always, always, always read the documentation!
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Relatively position an element without it taking up space in document flow
...ning. On the other hand, you can, however, make a pseudo-relative element, by creating a zero-width, zero-height, relatively positioned element, essentially solely for the purpose of creating a reference point for position, and an absolutely positioned element within that:
<div style="position: ...
Multi-Line Comments in Ruby?
How can I comment multiple lines in Ruby?
10 Answers
10
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Get jQuery version from inspecting the jQuery object
Is there a way to find out what version of jQuery is being used by inspecting the jQuery object? jQuery is dynamically getting added to my page and I cannot see any reference to it in my markup. If I inspect it in my browser's console, it's there.
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What is the advantage of using Restangular over ngResource?
...ruct the $resource object for this manually. Restangular helps you in this by "remembering" the URLs.
So if you do in some place
Restangular.one("users", 123).get().then(function(user) {
$scope.user = user;
});
// Some other code
//Automatically does the request to /users/123/cars as it rememb...
What are allowed characters in cookies?
...to be OK in browsers I've got here; where are you having trouble with it?
By implication of the above:
= is legal to include, but potentially ambiguous. Browsers always split the name and value on the first = symbol in the string, so in practice you can put an = symbol in the VALUE but not the NA...
Word-wrap in an HTML table
...ozilla.org/en-US/docs/Web/CSS/table-layout Table and column widths are set by the widths of table and col elements or by the width of the first row of cells. Cells in subsequent rows do not affect column widths. Sounds like this is good for performance also.
– Sam Barnum
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