drop table employee;
drop table department;
drop table address;
drop table comp_key_employee;
drop table comp_key_department;
drop table comp_key_address;

drop table smallint_table;
drop table integer_table;
drop table bigint_table;
drop table decimal_table;
drop table real_table;
drop table double_table;
drop table char_table;
drop table char_bit_table;
drop table varchar_table;
drop table varchar_bit_table;
drop table long_varchar_table;
drop table long_varchar_bit_table;
drop table clob_table;
drop table blob_table;
drop table date_table;
drop table time_table;
drop table timestamp_table;
drop table テーブル;

DROP PROCEDURE PROC_DTO_PARAM;