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Select n random rows from SQL Server table
...t. I want to select about 5,000 of those rows at random. I've thought of a complicated way, creating a temp table with a "random number" column, copying my table into that, looping through the temp table and updating each row with RAND() , and then selecting from that table where the random number ...
Should I use Java's String.format() if performance is important?
...te a small class to test which has the better performance of the two and + comes ahead of format. by a factor of 5 to 6.
Try it your self
import java.io.*;
import java.util.Date;
public class StringTest{
public static void main( String[] args ){
int i = 0;
long prev_time = System.curr...
How to have comments in IntelliSense for function in Visual Studio?
...on the line before your function and hit Enter:
C#: ///
VB: '''
See Recommended Tags for Documentation Comments (C# Programming Guide) for more info on the structured content you can include in these comments.
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Is storing a delimited list in a database column really that bad?
...heck boxes (any or all of them can be selected). I chose to save them in a comma separated list of values stored in one column of the database table.
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Is it possible to write data to file using only JavaScript?
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How do I exit the Vim editor?
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Hit the Esc key to enter "Normal mode". Then you can type : to enter "Command-line mode". A colon (:) will appear at the bottom of the screen and you can type in one of the following commands. To execute a command, press the Enter key.
:q to quit (short for :quit)
:q! to quit without saving ...
Utility classes are evil? [closed]
...lity classes aren't exactly evil, but they can violate the principles that compose a good object-oriented design. In a good object-oriented design, most classes should represent a single thing and all of its attributes and operations. If you are operating on a thing, that method should probably be a...
Checking Bash exit status of several commands efficiently
Is there something similar to pipefail for multiple commands, like a 'try' statement but within bash. I would like to do something like this:
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Execute command on all files in a directory
...o standard out. I need a script that will go into a directory, execute the command on each file, and concat the output into one big output file.
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Can you split a stream into two streams?
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