อยากทราบคำสั่ง sql เพื่อที่จะ select ข้อมูลล่าสุดของแต่ละ filed ครับ

SELECT tb_dsa.t_id,tb_dsa.t_date,max(tb_dsa.income) FROM tb_dsa where income is not null group by tb_dsa.income order by tb_dsa.t_date desc limit 1

SELECT tb_dsa.t_id, tb_dsa.t_date, max(tb_dsa.`like`) FROM tb_dsa where tb_dsa.`like` is not null group by tb_dsa.`like` order by tb_dsa.t_date desc limit 1

SELECT tb_dsa.t_id,tb_dsa.t_date, max(tb_dsa.employee) FROM tb_dsa where tb_dsa.employee is not null group by tb_dsa.employee order by tb_dsa.t_date desc limit 1