@Override public void writeExternalIndexDropStmt(Table table,IIndex index,StringBuilder ddl){
  ddl.append("DROP INDEX ");
  printIdentifier(getIndexName(index),ddl);
  printEndOfStatement(ddl);
}

@ Override public void writeExternalIndexDropStmt ( Table table , IIndex index , StringBuilder ddl ) { ddl . append ( "DROP INDEX " ) ; printIdentifier ( getIndexName ( index ) , ddl ) ; printEndOfStatement ( ddl ) ; }
index names in oracle are unique to a schema and hence oracle does not use the on < tablename > clause
