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Authentication versus Authorization
...nt, but both are central to security design, and the failure to get either one correct opens up the avenue to compromise.
In terms of web apps, very crudely speaking, authentication is when you check login credentials to see if you recognize a user as logged in, and authorization is when you look u...
How to use GROUP_CONCAT in a CONCAT in MySQL
...
I think its important to warn peoples that using only one kind of separator could be disadvantageous. I suggest making the "name" separator as semicolon ( ; ), and the values separator can remain as comma ( , )
– Fandi Susanto
Jul 28 '15 at...
How can I solve a connection pool problem between ASP.NET and SQL Server?
... being closed. Instead of closing your connection, this line creates a new one and tries to close it.
If you use SqlDataReader or a OleDbDataReader, close them. Even though closing the connection itself seems to do the trick, put in the extra effort to close your data reader objects explicitly when ...
How do I check if a variable exists?
... has some value before use:
try:
myVar
except NameError:
myVar = None
# Now you're free to use myVar without Python complaining.
However, I'm still not convinced that's a good idea - in my opinion, you should try to refactor your code so that this situation does not occur.
...
Why is “import *” bad?
...
Yeah, I really hate at my job when someone uses * import, because then I can't just run pyflakes and be happy, but have to repair those imports. It's nice though, that with that pyflakes helps me to :-)
– gruszczy
Mar 5 '10 a...
C++ equivalent of StringBuffer/StringBuilder?
...h.resize(0);
}
return main;
}
};
It uses two strings one for the majority of the string and the other as a scratch area for concatenating short strings. It optimise's appends by batching the short append operations in one small string then appending this to the main string, th...
How to print time in format: 2009‐08‐10 18:17:54.811
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The answer is definitely wrong in at least one case (Linux) as "struct tm" used by localtime() doesn't hold any time information below the seconds. Instead "struct timeval" used by gettimeofday() has microseconds which, divided by 1000 will yield the milliseconds. All...
What is the (function() { } )() construct in JavaScript?
...
last one 31.new' is invalid syntax
– cat
Mar 1 '16 at 2:39
...
Python exit commands - why so many and when should each be used?
...ctionality was included to help people who do not know Python. After all, one of the most likely things a newbie will try to exit Python is typing in quit.
Nevertheless, quit should not be used in production code. This is because it only works if the site module is loaded. Instead, this function...
Can I store images in MySQL [duplicate]
...+ employees. In my 13 years of professional experience, I've never seen anyone store images in a database. I say this to support the statement it is an uncommon practice.
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