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1 Introduction : 1.1 Typographical Conventions Used in this Guide

In the following descriptions a term refers to any word or group of words which may be language keywords, user-supplied values, literals, etc. A term’s exact meaning depends upon the context in which it is used.
Italic font introduces a new term, typically, in the sentence that defines it for the first time.
Fixed-width (mono-spaced) font is used for terms that must be given literally such as SQL commands, specific table and column names used in the examples, programming language keywords, etc. For example, SELECT * FROM emp;
Italic fixed-width font is used for terms for which the user must substitute values in actual usage. For example, DELETE FROM table_name;
Square brackets [ ] denote that one or none of the enclosed term(s) may be substituted. For example, [ a | b ], means choose one of “a” or “b” or neither of the two.
Braces {} denote that exactly one of the enclosed alternatives must be specified. For example, { a | b }, means exactly one of “a” or “b” must be specified.
Ellipses ... denote that the proceeding term may be repeated. For example, [ a | b ] ... means that you may have the sequence, “b a a b a”.

1 Introduction : 1.1 Typographical Conventions Used in this Guide

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