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Add Foreign Key to existing table
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edited Jul 18 '15 at 22:38
Steen Schütt
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Is there a way for multiple processes to share a listening socket?
...forked child to have copies of all the parent's file descriptors. Any that it does not close will continue to be shared, and (for example with a TCP listening socket) can be used to accept() new sockets for clients. This is how many servers, including Apache in most cases, work.
On Windows the same...
Doing something before program exit
...u have a function or something that will be executed before your program quits? I have a script that will be constantly running in the background, and I need it to save some data to a file before it exits. Is there a standard way of doing this?
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Javascript - How to detect if document has loaded (IE 7/Firefox 3)
...ment loads, but the document may or may not have finished loading yet. If it did load, then I can just call the function. If it did NOT load, then I can attach an event listener. I can't add an eventlistener after onload has already fired since it won't get called. So how can I check if the docume...
Create or write/append in text file
I have a website that every time a user logs in or logs out I save it to a text file.
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JavaScript is in array
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edited Mar 13 '12 at 3:44
adeneo
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ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
... How am I supposed to query the DB if I'm not able to even connect to it??
– isabelle martz
May 12 '16 at 13:52
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Why should eval be avoided in Bash, and what should I use instead?
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There's more to this problem than meets the eye. We'll start with the obvious: eval has the potential to execute "dirty" data. Dirty data is any data that has not been rewritten as safe-for-use-in-situation-XYZ; in our case, it's any string that has not been formatted so as to be safe ...
Will the Garbage Collector call IDisposable.Dispose for me?
The .NET IDisposable Pattern implies that if you write a finalizer, and implement IDisposable, that your finalizer needs to explicitly call Dispose.
This is logical, and is what I've always done in the rare situations where a finalizer is warranted.
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What's the easiest way to escape HTML in Python?
cgi.escape seems like one possible choice. Does it work well? Is there something that is considered better?
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