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What happens if you don't commit a transaction to a database (say, SQL Server)?
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As long as you don't COMMIT or ROLLBACK a transaction, it's still "running" and potentially holding locks.
If your client (application or user) closes the connection to the database before committing, any still running transactions will be rolled back...
What is the difference between #include and #include “filename”?
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In practice, the difference is in the location where the preprocessor searches for the included file.
For #include <filename> the preprocessor searches in an implementation dependent manner, normally in search directories pre-designated by the compiler/IDE. This method is normally us...
Convert Python program to C/C++ code? [closed]
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Yes. Look at Cython. It does just that: Converts Python to C for speedups.
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scp with port number specified
I'm trying to scp a file from a remote server to my local machine. Only port 80 is accessible.
11 Answers
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AngularJS and its use of Dollar Variables
...cross $scope.$value and $scope.value , then it will avoid checking the former since it's prefixed with a dollar character in its variable name?
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Why does python use 'else' after for and while loops?
I understand how this construct works:
21 Answers
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How do I get the computer name in .NET
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System.Environment.MachineName from a console or WinForms app.
HttpContext.Current.Server.MachineName from a web app
System.Net.Dns.GetHostName() to get the FQDN
See How to find FQDN of local machine in C#/.NET ? if the last doesn't give you the FQDN and you need it.
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How to get the Power of some Integer in Swift language?
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If you like, you could declare an infix operator to do it.
// Put this at file level anywhere in your project
infix operator ^^ { associativity left precedence 160 }
func ^^ (radix: Int, power: Int) -> Int {
return Int(pow(Double(radix), Double(power)))
}
// ......
How to get the filename without the extension in Java?
...ave thought of all special cases, such as what happens if you pass in null or dots in the path but not in the filename, you can use the following:
import org.apache.commons.io.FilenameUtils;
String fileNameWithOutExt = FilenameUtils.removeExtension(fileNameWithExt);
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Warning message: In `…` : invalid factor level, NA generated
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The warning message is because your "Type" variable was made a factor and "lunch" was not a defined level. Use the stringsAsFactors = FALSE flag when making your data frame to force "Type" to be a character.
> fixed <- data.frame("Type" = character(3), "Amount" = numeric(3))
> str(...