The following conventions are used in this book:
- Italic
Used for file and directory names and URLs, and for the first mention of new terms under discussion.
Constant width
Used for code examples.
Constant width bold
In some code examples, highlights the statements being discussed (e.g., when a change occurs).
Constant width italic
In some code examples, indicates an element (e.g., a filename) that you supply.
- UPPERCASE
In code examples, indicates PL/SQL keywords.
- lowercase
In code examples, indicates user-defined items like variables and parameters.
- Punctuation
In code examples, enter exactly as shown.
- Indentation
In code examples, helps to show structure (but is not required).
- --
In code examples, begins a single-line comment, which extends to the end of a line.
- /* and */
In code examples, these characters delimit a multiline comment, which can extend from one line to another.
- .
In code examples and related discussions, periods qualify a reference by separating an object name from a component name. For example, dot notation is used to select fields in a record and to specify declarations within a package.
The web icon indicates that the code example described or shown in the text appears on the book’s web page.
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