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Why is there a difference in checking null against a value in VB.NET and C#?
...g the behaviour of NULL in (most if not all) SQL databases. This is also a more standard (than C#'s) interpretation of three-valued logic, as explained here.
The C# team made different assumptions about what NULL means, resulting in the behaviour difference you show. Eric Lippert wrote a blog about...
Why should I use document based database instead of relational database?
...ical kinds of applications or domains where the document based database is more suitable than the relational database?
7 An...
IIS7 Overrides customErrors when setting Response.StatusCode?
...t is set to false, custom errors module replaces text with its own text.
More information: What to expect from IIS7 custom error module
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How do you configure an OpenFileDialog to select folders?
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MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
... this is notoriously slow.
Only ever use IN with a fixed list of values.
More tips
If you want to make queries faster,
don't do a SELECT * only select
the fields that you really need.
Make sure you have an index on relevant_field to speed up the equi-join.
Make sure to group by on the primary ...
Difference between single and double square brackets in Bash
... expands to [ a b = 'a b' ]
x='*'; [ $x = 'a b' ]: syntax error if there's more than one file in the current directory.
x='a b'; [ "$x" = 'a b' ]: POSIX equivalent
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[[ ab = a? ]]: true, because it does pattern matching (* ? [ are magic). Does not glob expand to files in current directory.
[ ab =...
How to make a valid Windows filename from an arbitrary string?
...tead of a simple string; the original version will take longer and consume more memory.
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How to search for a string in cell array in MATLAB?
...ch, see stackoverflow.com/a/9433112/44737. If you need to match something more complex like a regex or a field in a structure, see stackoverflow.com/a/8061808/44737
– rob
Sep 26 '13 at 19:27
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How to insert newline in string literal?
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Get index of element as child relative to parent
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