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Discovering SQL: A Hands-On Guide for Beginners by Alex Kriegel

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CONVENTIONS

To help you get the most from the text and keep track of what's happening, we used a number of conventions throughout the book.

TRY IT OUT

Try It Out is an exercise you should work through, following the text in the book.

  1. It usually consists of a set of steps.
  2. Each step has a number.
  3. Follow the steps through with your copy of the database.

How It Works

After each Try It Out, the code you typed will be explained in detail.

imagesBoxes with a warning icon like this one hold important, not-to-be-forgotten information that is directly relevant to the surrounding text.

imagesThe pencil icon indicates notes, tips, hints, tricks, or asides to the current discussion.

As for styles in the text:

  • We highlight new terms and important words when we introduce them.
  • We show keyboard strokes like this: Ctrl+A.
  • We show file names, URLs, and code within the text like so: INSERT INTO…SELECT FROM.

We present code in two different ways:

We use a monofont type with no highlighting for most code examples.
We use bold to emphasize code that is particularly important in the present context
or to show changes from a previous code snippet.

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