SELECT DISTINCT(object_TYPE) from user_objects;
select 'drop table '||object_name||' cascade constraints PURGE;' from user_objects where object_TYPE='TABLE';
--select 'drop INDEX '||object_name ||' ;' from user_objects where object_TYPE='INDEX';
select 'drop VIEW '||object_name ||' ;' from user_objects where object_TYPE='VIEW';
select 'drop PACKAGE '||object_name ||' ;' from user_objects where object_TYPE='PACKAGE';
--select 'drop PACKAGE BODY '||object_name ||' ;' from user_objects where object_TYPE='PACKAGE BODY';
select 'drop SEQUENCE '||object_name ||' ;' from user_objects where object_TYPE='SEQUENCE';