SQL/MX Queuing and Publish/Subscribe Services

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Notation Conventions
Notation Conventions
UPPERCASE LETTERS. Uppercase letters indicate keywords and reserved words. These
items are not case sensitive; enter in uppercase or lowercase. Items not enclosed in
brackets are required. For example:
BEGIN DECLARE SECTION;
lowercase italic letters. Lowercase italic letters indicate variable items that you supply.
Items not enclosed in brackets are required. For example, :hostvar is required:
:hostvar [[INDICATOR] :indicator_var]
[ ] Brackets. Brackets enclose optional syntax items. For example, INDICATOR is
optional:
[INDICATOR] :indicator_var
A list of items enclosed in brackets indicates you can choose one item or none. For
example, you can choose either ASC or DESC or none:
[ASC | DESC]
{ } Braces. A list of items enclosed in braces indicates you are required to choose one
item. Braces are used only as required for grouping. For example, you must choose
either SHARE or EXCLUSIVE:
[IN] {SHARE | EXCLUSIVE} MODE
| Vertical Line. A vertical line separates alternatives in a horizontal list that is enclosed in
brackets or braces. For example, you can choose either GLOBAL or LOCAL:
[GLOBAL | LOCAL] value-specification
A vertical line also separates alternatives in a vertical list. For example, you choose
either PRIMARY KEY or (key-column-list) or ENTRY ORDER:
PRIMARY KEY
| (key-column-list)
| ENTRY ORDER
… Ellipsis. An ellipsis immediately following a pair of brackets or braces indicates that you
can repeat the enclosed sequence of syntax items any number of times. For example:
SET TRANSACTION transaction-mode [,transaction-mode]...
Punctuation. Parentheses, commas, semicolons, and other symbols not previously
described must be entered as shown. For example:
DATEFORMAT (TIMESTAMP '1996-06-20 14:20:20.00', USA)