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Notational conventions Preface
22 U929-J-Z125-9-76
1.6 Notational conventions
This section provides an explanation of the notational conventions used to describe syntax
rules.
1.6.1 Warnings and notes
1.6.2 Non-SDF notational conventions
Points out particularly important information
CAUTION! Warnings
Language element Explanation Example
KEYWORD
Keywords are shown in underlined uppercase
letters. You may enter either the underlined parts
of the keyword exactly as shown or the complete
keyword.
DATABASE-KEY
MANUAL
OPTIONAL WORD Optional words are shown in uppercase letters
without underlining. Such words may be omitted
without altering the meaning of a statement.
NAME IS
ALLOWED
PAGES
variable Variables are shown in italic lowercase letters. In
a format which contains variables, a current value
must be entered in place of each variable.
item-name
literal-3
integer
⎧Either⎫
⎨ ⎬
⎩or ⎭
Exactly one of the expressions enclosed in braces
must be specified.
Indented lines belong to the preceding
expression.
The braces themselves must not be specified.
⎧CALC ⎫
⎨ ⎬
⎩INDEX⎭
⎧VALUE IS ⎫
⎨ ⎬
⎩VALUES ARE ⎭
[optional] The expression in square brackets can be
omitted. UDS/SQL then uses the default value
The brackets themselves must no be specified.
[IS integer]
[WITHIN realm-name]
Table 3: Notational conventions (part 1 of 2)
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