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How to avoid the “divide by zero” error in SQL?
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In order to avoid a "Division by zero" error we have programmed it like this:
Select Case when divisor=0 then null
Else dividend / divisor
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But here is a much nicer way of doing it:
Select dividend / NULLIF(divisor, 0...
What is the difference between Session.Abandon() and Session.Clear()
...is called. He has to explicitly set the ASPNET_SessionID cookie to null in order to get a new Session ID.
– Zo Has
Nov 25 '13 at 5:27
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SQL Server IN vs. EXISTS Performance
...e).
Both forms can be converted to join forms internally, have the join order reversed, and run as loop, hash or merge--based on the estimated row counts (left and right) and index existence in left, right, or both sides.
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How can I return to a parent activity correctly?
... using two things:
call:
NavUtils.navigateUpFromSameTask(this);
Now, in order for this to work, you need to have your manifest file state that activity A
has a parent activity B. The parent activity doesn't need anything. In version 4 and above you will get a nice back arrow with no additional ef...
Understanding FFT output
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Why does dividing two int not yield the right value when assigned to double?
... division version of operator/, which takes 2 ints and returns an int. In order to use the double version, which returns a double, at least one of the ints must be explicitly casted to a double.
c = a/(double)b;
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Why am I not getting a java.util.ConcurrentModificationException in this example?
... remove = Integer.valueOf(3);
A solution:
Traverse the array in reverse order if you are going to remove a list element. Simply by going backwards through the list you avoid visiting an item that has been removed, which removes the exception.
//To remove items from the list, start from the end ...
Meaning of “[: too many arguments” error from if [] (square brackets)
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Detect if stdin is a terminal or pipe?
... is a file or a pipe\n");
(On windows they're prefixed with underscores: _isatty, _fileno)
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Generic List - moving an item within the list
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You should remove before inserting ... your order may cause the list to do an allocation.
– Jim Balter
Nov 6 '18 at 15:47
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