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What does “#pragma comment” mean?
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These link in the libraries selected in MSVC++.
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Are PostgreSQL column names case-sensitive?
...ife: ("first_Name")
So, yes, PostgreSQL column names are case-sensitive:
SELECT * FROM persons WHERE "first_Name" = 'xyz';
Also fix the incorrect double-quotes around 'xyz'. Values (string literals) are enclosed in single quotes.
Read the manual here.
My standing advice is to use legal, lower...
Avoiding SQL injection without parameters
...ion is wrong. You need to put apostrophes around the text:
string sql = "SELECT * FROM Users WHERE Name='" + SafeDBString(name) & "'";
SqlCommand getUser = new SqlCommand(sql, connection);
So that's one other thing parameters do for you: you don't need to worry about whether or not a value ...
How to implement Enums in Ruby?
...a aren't interchangeable). There are many ways to itemize objects in Ruby; selecting the right one depends on the problem being solved. Slavishly replicating features you don't need is misguided. The correct answer has to depend on the context.
– user1164178
Fe...
How to Turn Off Showing Whitespace Characters in Visual Studio IDE
...and later versions
Ctrl + P to open and then writing Whitespace,
you can select the View: Toggle Render Whitespace
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What is the difference between Strategy pattern and Dependency Injection?
...rn) is a particular software
design pattern, whereby algorithms can
be selected at runtime.
The strategy pattern is intended to
provide a means to define a family of
algorithms, encapsulate each one as an
object, and make them interchangeable.
The strategy pattern lets the
algorit...
A std::map that keep track of the order of insertion?
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Thats great! Boost even has a member-selector to do the job!
– xtofl
Jul 8 '09 at 14:19
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XML parsing of a variable string in JavaScript
...at JQuery does not support XML namespaces. See zachleat.com/web/2008/05/10/selecting-xml-with-javascript
– mikemaccana
Jan 24 '11 at 14:58
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JavaScript: Check if mouse button down?
...semove='handleMove(this);'>Click and drag me!</div>
The :active selector handles the mouse click much better than mouse up/down, you just need a way of reading that state in the onmousemove event. For that I needed to cheat and relied on the fact that the default cursor is "auto" and I ju...
Replace None with NaN in pandas dataframe
... dtype fields in your df and then replace the None:
obj_columns = list(df.select_dtypes(include=['object']).columns.values)
df[obj_columns] = df[obj_columns].replace([None], np.nan)
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