Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "To convert a .unv Universe, let's perform the following steps:"

A block of code is set as follows:

SELECT A.CUSTOMER_ID, COUNT (C.CREDIT_CARD_NO), COUNT (B.ACCOUNT_NUMBER)
FROM CUSTOMERS A, CURRENT_ACCOUNTS B, CREDIT_CARDS C
WHERE A.CUSTOMER_ID =B.CUSTOMER_ID
AND A.CUSTOMER_ID = C.CUSTOMER_ID
GROUP BY A.CUSTOMER_ID

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

EMPLOYEES.AGE BETWEEN "AGE BUCKET".AGE_LOWER_BOUND AND "AGE BUCKET".AGE_UPPER_BOUND

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Navigate to Administrative Tools, and then double-click on Data Sources (ODBC)."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.