drop table EMPLOYEE; drop table ADDRESS; drop table BIG_DECIMAL_ENTITY; drop table BIG_INTEGER_ENTITY; drop table BOOLEAN_ENTITY; drop table BYTE_ARRAY_ENTITY; drop table BYTE_ENTITY; drop table CALENDAR_ENTITY; drop table CHARACTER_ENTITY; drop table DATE_ENTITY; drop table DEPARTMENT; drop table DOUBLE_ENTITY; drop table ENUM_ENTITY; drop table FLOAT_ENTITY; drop table INTEGER_ENTITY; drop table LONG_ENTITY; drop table SERIALIZABLE_ENTITY; drop table SHORT_ENTITY; drop table SQL_DATE_ENTITY; drop table STRING_ENTITY; drop table TIME_ENTITY; drop table TIMESTAMP_ENTITY;