SAS 9.4 SQL Procedure User's Guide, Second Edition, 2nd Edition

=

an equal sign identifies a value for a literal in some language elements such as

system options.

In this example of the MAPS system option, the equal sign sets the value of MAPS:

MAPS=location-of-maps

< >

angle brackets identify optional arguments. A required argument is not enclosed in

angle brackets.

In this example of the CAT function, at least one item is required:

CAT (item-1 <, item-2, …>)

|

a vertical bar indicates that you can choose one value from a group of values. Values

that are separated by the vertical bar are mutually exclusive.

In this example of the CMPMODEL= system option, you can choose only one of the

arguments:

CMPMODEL=BOTH | CATALOG | XML

...

an ellipsis indicates that the argument can be repeated. If an argument and the ellipsis ...