amount) VALUES ( 26, 2, 2003, 7, 3364.84);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 2, 2003, 8, 4334.82);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 2, 2003, 9, 4654.57);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 2, 2003, 10, 3454.19);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 2, 2003, 11, 4429.19);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 2, 2003, 12, 4334.84);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 1, 2434.84);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 2, 2544.65);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 3, 5337.83);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 4, 5457.45);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 5, 4314.56);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 6, 3364.64);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 7, 3264.84);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 8, 4734.82);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 9, 2354.57);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 10, 4354.34);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 11, 2432.73);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 3, 2003, 12, 4534.84);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 1, 3164.23);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 2, 3144.65);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 3, 6337.83);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 4, 2357.45);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 5, 4314.564);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 6, 4364.64);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 7, 2264.84);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 8, 4234.82);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 9, 2454.57);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 10, 1554.19);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 11, 2429.73);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 26, 4, 2003, 12, 3334.85);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 21, 5, 2003, 1, NULL);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 21, 5, 2003, 2, NULL);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 21, 5, 2003, 3, NULL);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES ( 21, 5, 2003, 4, NULL);INSERT INTO all_sales ( emp_id, prd_type_id, year, month, amount) VALUES