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Oracle “Partition By” Keyword
...turn every record in the emp table.)
emp_no dept_no DEPT_COUNT
1 10 3
2 10 3
3 10 3 <- three because there are three "dept_no = 10" records
4 20 2
5 20 2 <- two because there are two "dept_no = 20" records
If there was another co...
how do i block or restrict special characters from input fields with jquery?
...ut').on('keypress', function (event) {
var regex = new RegExp("^[a-zA-Z0-9]+$");
var key = String.fromCharCode(!event.charCode ? event.which : event.charCode);
if (!regex.test(key)) {
event.preventDefault();
return false;
}
});
...
Select N random elements from a List in C#
...e probability of selection = (number needed)/(number left)
So if you had 40 items, the first would have a 5/40 chance of being selected. If it is, the next has a 4/39 chance, otherwise it has a 5/39 chance. By the time you get to the end you will have your 5 items, and often you'll have all of them...
How to post pictures to instagram using API
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edited Sep 3 '18 at 7:10
answered Sep 17 '13 at 8:22
Alb...
Is it a bad practice to use negative margins in Android?
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In 2010, @RomainGuy (core Android engineer) stated that negative margins had unspecified behavior.
In 2011, @RomainGuy stated that you can use negative margins on LinearLayout and RelativeLayout.
In 2016, @RomainGuy stated that...
Algorithm to calculate the number of divisors of a given number
...he divisors together and apply those numbers into the formula above.
Not 100% sure about my algo description but if that isn't it it's something similar .
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Find a pair of elements from an array whose sum equals a given number
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How are parameters sent in an HTTP POST request?
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edited Jun 6 '15 at 1:05
answered Jan 27 '13 at 19:32
G...
“[notice] child pid XXXX exit signal Segmentation fault (11)” in apache error.log [closed]
...d then look at the backtrace. Do something like this:
$ ps -ef|grep httpd
0 681 1 0 10:38pm ?? 0:00.45 /Applications/MAMP/Library/bin/httpd -k start
501 690 681 0 10:38pm ?? 0:00.02 /Applications/MAMP/Library/bin/httpd -k start
...
Now attach gdb to one of the chi...
How to set Oracle's Java as the default Java in Ubuntu?
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edited Mar 30 at 15:27
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