The SELECT statement is without question the most complex amongst MySQL’s data manipulation statements. Not surprising when you consider that the foremost purpose of structured query language (SQL) is to retrieve information from a relational database which adheres to a given criteria. Entire books have been written about how to construct a query to fetch the data that you’re after. That’s not the purpose of this article. Our goal will be to cover the syntax of the SELECT statement and gain an understanding of its many optional clauses. We’ll start at the beginning and work our way through them. When we’re done, you’ll understand which clauses to use for different purposes. We’ll leave the twenty table joins for another day.

This application can easily be coded in Python with performance levels of thousands of transactions per second on a desktop PC. Simple sample programs for the server and client sides are listed below, with discussions following

'dialog' is a utility for building console-based 'front ends' in UNIX like operating systems.

In this brief tutorial I am mentioning the usage of few important basic controls available with this 'dialog' utility and later I have created a very simple front end application in UNIX bash scripting using dialog.

• Part 1: Combine HTML5, geolocation APIs, and Web services to create mobile mashups
  
• Part 2: Unlock local storage for mobile Web applications with HTML5
  
• Part 3: Make mobile Web applications work offline with HTML5
  
• Part 4: Using Web Workers to speed up your mobile Web applications
  
• Part 5: Develop new visual UI features in HTML 5

The core of any perl one-liner is the -e switch, which lets you pass a snippet of code on the command-line:

perl -e 'print "hi\n"' prints "hi" to the console.

The second standard trick to perl one-liners are the -n and -p flags. Both of these make perl put an implicit loop around your program, running it once for each line of input, with the line in the $_ variable. -p also adds an implicit print at the end of each iteration.

$ cat arraymanip.sh
#! /bin/bash
Unix[0]='Debian'
Unix[1]='Red hat'
Unix[2]='Ubuntu'
Unix[3]='Suse'

echo ${Unix[1]}

$./arraymanip.sh
Red hat

This tutorial series steps you through the process of creating a 3D shoot'em'up game using the popular and powerful Ogre 3D engine. The tutorials compile on both Windows and Linux.