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Why are Oracle table/column/index names limited to 30 characters?
I can understand that many years ago there would be this kind of limitation, but nowadays surely this limit could easily be increased. We have naming conventions for objects, but there is always a case that turns up where we hit this limit - especially in naming foreign keys.
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How to clone all remote branches in Git?
I have a master and a development branch, both pushed to GitHub . I've clone d, pull ed, and fetch ed, but I remain unable to get anything other than the master branch back.
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Stopping fixed position scrolling at a certain point?
...certain point, say when it is 250px from the top of the page, is this possible? Any help or advice would be helpful thanks!
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Will strlen be calculated multiple times if used in a loop condition?
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Yes, strlen() will be evaluated on each iteration. It's possible that, under ideal circumstances, the optimiser might be able to deduce that the value won't change, but I personally wouldn't rely on that.
I'd do something like
for (int i = 0,...
What resources are shared between threads?
Recently, I have been asked a question in an interview what's the difference between a process and a thread. Really, I did not know the answer. I thought for a minute and gave a very weird answer.
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Collection versus List what should you use on your interfaces?
The code looks like below:
8 Answers
8
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Check if a string contains a substring in SQL Server 2005, using a stored procedure
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CHARINDEX() searches for a substring within a larger string, and returns the position of the match, or 0 if no match is found
if CHARINDEX('ME',@mainString) > 0
begin
--do something
end
Edit or from daniels answer, if you're wanting to find a w...
window.onload vs document.onload
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When do they fire?
window.onload
By default, it is fired when the entire page loads, including its content (images, CSS, scripts, etc.).
In some browsers it now takes over the role of document.onload and fires when the DOM is ready as well.
document.onloa...
Is there StartsWith or Contains in t sql with variables?
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StartsWith
a) left(@edition, 15) = 'Express Edition'
b) charindex('Express Edition', @edition) = 1
Contains
charindex('Express Edition', @edition) >= 1
Examples
left function
set @isExpress = case when left(@edition, 15) = 'Express Edition' then 1 else 0 end
iif fun...
Calculate number of hours between 2 dates in PHP
How do I calculate the difference between two dates in hours?
16 Answers
16
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