Posts Tagged ‘for next’
The case against i, j, and k
September 16th, 2009 | 
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One of the greatest programming books of all time is Code Complete by Steve McConnell. I often recommend this book to new programmers and when I was running the IT department of the Dot Com I was working for, I made it required reading.
In it, Steve makes a great case against using i, j, and k for incrementing variables as in, for(i =0, i < 20;i++) because it describes nothing about what the code is doing.
What I intend to do today is to demonstrate from a real-life example that he’s right.
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SQL WHILE – SQL For Programmers
The IF statement we looked at on Tuesday was pretty tame compared to the WHILE construct.
Actually, the main thing you need to keep in mind is that WHILE is all you have. There is no such thing as a FOR loop or a DO WHILE loop. So, you have to force WHILE to do those for you.
The basic syntax of WHILE looks like this:
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