drop table constraints¶

BEGIN
  FOR ind IN
    (SELECT index_name FROM user_indexes WHERE table_name = upper('comm_attch_file') AND index_name NOT IN
       (SELECT unique index_name FROM user_constraints WHERE
          table_name = upper('comm_attch_file') AND index_name IS NOT NULL))
  LOOP
      execute immediate 'DROP INDEX '||ind.index_name;
  END LOOP;
END;