Ja, du kan skapa synonymer för ett schema.
select ksppinm, ksppstvl from x$ksppi a, x$ksppsv b where a.indx=b.indx and ksppinm like '%schema%synonym%'
ALTER SYSTEM SET "_enable_schema_synonyms" = true SCOPE=SPFILE;
STARTUP FORCE
show parameter synonym
Förutsatt att du redan har ett schema som heter ORA...
CREATE SCHEMA SYNONYM ORASYN for ORA; -- create synonym for schema
CREATE TABLE ORASYN.TAB1(id number(10)); -- create table in schema
Mer information här:http://oracle- network.com/database/how-to-create-synonym-for-a-schema/