How to delete duplicate rows from a MySQL table

Question

I have a MySQL table like:

ID, Col1, Col2, Col3, Col4, etc...

ID is a primary key and has been w

Answer 1

You can try this with the help of join : Like that way:

DELETE e1 FROM emp_tbl AS e1 JOIN emp_tbl AS e2 WHERE 
e1.Col1=e2.Col1 AND e1.Col2=e2.Col2 AND e1.Col3=e2.Col3 AND e1.Col4=e2.Col4
AND e1.id < e2.id;