CREATE INDEX my_new_index
ON gl_code_combinations (segment1,segment4,segment5);
Is that what you were looking for?
Please move your thread to the Sql and PL/SQL forum.
This forum is ONLY for Sql Developer questions/issues.
when you say "operating in a cloud and not EBS" - does that mean you are using fusion apps? If so, there's no option of adding custom indexes to tables - it's Software as a Service. Or do you mean you are using an Oracle Clouded hosted EBS environment?