All RMAN commands in Chapter 2, "RMAN Commands" are organized into the following sections:
Caution:Not all keywords and parameters are valid in all circumstances. Be sure to refer to the "Semantics" section of each statement and clause to learn about any restrictions on the syntax.
Semantics This section describes the purpose of the keywords, parameter, and clauses that make up the syntax, as well as restrictions and other usage notes that may apply to them. The conventions for keywords and parameters used in this chapter are explained in "Conventions".
Optional sections following the examples provide more information on how and when to use the statement.