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Dynamic SQL - EXEC(@SQL) versus EXEC SP_EXECUTESQL(@SQL)
...tesql, parameters are explicitly identified in the calling signature. This excellent article descibes this process.
The oft cited reference for many aspects of dynamic sql is Erland Sommarskog's must read: "The Curse and Blessings of Dynamic SQL".
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Weighted random numbers
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@Dan, Yes, that would be another excellent way to do it. If you code it up and answer with it, I'll vote for it. I think the code could be pretty similar to what I have above. You would just need to add one to the generated output. And the input to the d...
Class with single method — best approach?
...tatic methods. True utility classes that do not pose any risk to bloat are excellent cases for static methods - System.Convert as an example. If your project is a one-off with no requirements for future maintenance, the overall architecture really isn't very important - static or non static, doesn't...
Virtual functions and performance - C++
...places to look for performance improvements are in algorithms and I/O.
An excellent article that talks about virtual functions (and more) is Member Function Pointers and the Fastest Possible C++ Delegates.
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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
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This answer is excellent, it really deserves more upvotes considering that firejail is actively maintained with great documentation, encompasses most if not all of the other answers and is designed to be relatively easy to use.
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What is a practical use for a closure in JavaScript?
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The example you give is an excellent one. Closures are an abstraction mechanism that allow you to separate concerns very cleanly. Your example is a case of separating instrumentation (counting calls) from semantics (an error-reporting API). Other uses ...
How to use SVN, Branch? Tag? Trunk?
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The subversion book is an excellent source of information on strategies for laying out your repository, branching and tagging.
See also:
Do you continue development in a branch or in the trunk
Branching strategies
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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
...'s inline help:
\h ALTER TABLE
Also documented in the postgres docs (an excellent resource, plus easy to read, too).
ALTER TABLE tablename ADD CONSTRAINT constraintname UNIQUE (columns);
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What exactly is Apache Camel?
...);
}
See also this and this and Camel in Action (as others have said, an excellent book!)
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What is digest authentication?
...sent over the wire.
HA1 = MD5(username:realm:password)
Wikipedia has an excellent article on this topic
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