| Letter |
An uppercase or lowercase alphabetic character ranging from A through Z. |
| Number |
A digit ranging from 0 through 9. Do not use commas when typing a number with more than 3 digits.
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| Word |
Keywords with variables.
- UPPERCASE LETTERS represent a keyword.
Syntax diagrams show all keywords in uppercase unless operating system restrictions require them to be in lowercase.
-
lowercase italic letters represent a variable such as a column or table name.
Substitute the variable with a proper value.
-
lowercase bold letters represent an excerpt from the diagram. The excerpt is defined immediately following the diagram that contains it.
-
UNDERLINED LETTERS represent the value assumed by default when no other value is given. This applies to both uppercase and lowercase words.
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| Spaces |
Use one space between items such as keywords or variables. |
| Punctuation |
Type all punctuation exactly as it appears in the diagram. |