Declarative Objectivity (DO) Language : Schema Statements : SHOW CLASSES Statement
SHOW CLASSES Statement
A SHOW CLASSES statement returns a list of the classes currently in the federated database’s schema.
Syntax 
showClassesStatement : SHOW CLASSES; 
Quick Look 
Show the schema classes in the federated database:
SHOW CLASSES;
See also 
SHOW CLASS
SHOW SCHEMA
Discussion 
A SHOW CLASSES statement returns the namespace-qualified name of every class defined in the federated database’s schema. (To return descriptions of all classes, use the SHOW SCHEMA statement.)