The RENAME SYNONYM statement (rename_synonym_statement) changes the name of a synonym.
RENAME [PUBLIC] SYNONYM <old_synonym_name> TO <new_synonym_name>
<old_synonym_name> ::= <synonym_name>
<new_synonym_name> ::= <synonym_name>
The old synonym name old_synonym_name must have been generated by the current user.
If PUBLIC is specified, the old synonym must be defined as PUBLIC.
A table of the current user with the new synonym name must not exist already.