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What is InnoDB and MyISAM in MySQL?
...MyISAM
InnoDB is a storage engine for MySQL,
included as standard in all current
binaries distributed by MySQL AB. Its
main enhancement over other storage
engines available for use with MySQL
is ACID-compliant transaction support
MyISAM is the default storage engine
for the MySQ...
JRuby on Rails vs. Ruby on Rails, what's difference?
...hem from within Ruby code with JRuby. In the other direction you can also call JRuby code from within Java. JRuby can also use the JVM and application server capabilities.
JRuby is usually hosted within Java application servers such as Sun's GlassFish or even the Tomcat web server.
Although you cann...
Difference in months between two dates
...r of 'average months' between the two dates, the following should work for all but very huge date differences.
date1.Subtract(date2).Days / (365.25 / 12)
Note, if you were to use the latter solution then your unit tests should state the widest date range which your application is designed to work...
Using a strategy pattern and a command pattern
...s encapsulate an algorithm and decouple implementation details from their calling classes. The only difference I can discern is that the Strategy pattern takes in parameters for execution, while the Command pattern doesn't.
...
Read file line by line using ifstream in C++
... read data from a file:
std::ifstream input( "filename.ext" );
If you really need to read line by line, then do this:
for( std::string line; getline( input, line ); )
{
...for each line in input...
}
But you probably just need to extract coordinate pairs:
int x, y;
input >> x >&g...
XML Validation with XSD in Visual Studio IDE
... Error List windows is visible (menu View > Error List). This will show all inconsistencies between XML and XSD schema definitions.
Once all of that is in place, the Visual Studio XML editor should highlight problems with your XML in the editor using blue squigglies:
...
COALESCE Function in TSQL
...not sure why you think the documentation is vague.
It simply goes through all the parameters one by one, and returns the first that is NOT NULL.
COALESCE(NULL, NULL, NULL, 1, 2, 3)
=> 1
COALESCE(1, 2, 3, 4, 5, NULL)
=> 1
COALESCE(NULL, NULL, NULL, 3, 2, NULL)
=> 3
COALESCE(6, 5, 4, ...
How do I install a NuGet package .nupkg file locally?
I have some .nupkg files from a C# book. How can I install them?
8 Answers
8
...
Can I get a list of files marked --assume-unchanged?
... unchanged files at the current directory and below. If you want a list of all "assume-unchanged" files in the repository, you'll need git ls-files -v `git rev-parse --show-toplevel` | grep "^[a-z]"
– Trebor Rude
May 15 '13 at 15:43
...
C++ static virtual members?
...
No, there's no way to do it, since what would happen when you called Object::GetTypeInformation()? It can't know which derived class version to call since there's no object associated with it.
You'll have to make it a non-static virtual function to work properly; if you also want to be...