CREATE TABLE caller (
	caller_no numeric(4) NOT NULL,
	pin numeric(4) NOT NULL,
	target character(1),
	sex character(6),
	birth_year numeric(4),
	dialect_area character(13),
	education numeric(1),
	ti numeric(1),
	payment_type character(5),
	amt_pd numeric(6),
	con character(1),
	remarks character(120),
	calls_deleted numeric(3),
	speaker_partition character(3)
);