INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('001', 0.9);
INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('002', 0.9);
INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('003', 0.9);
INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('004', 0.9);
INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('005', 0.9);
INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('006', 0.9);
INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('007', 0.9);
INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('008', 0.9);
INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('009', 0.9);
INSERT INTO mydata.discount_rules (M_id, discount) VALUES ('010', 0.9);