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

I'd do it following way, in MSSQL, but I think it should work with slight modifications in MySQL. Not executable, but should show the way.

CREATE TEMPORARY TABLE #Table (Col1, Col2, Col3);
INSERT INTO #Table (Col1, Col2, Col3) SELECT DISTINCT Col1, Col2, Col3 FROM Table;
DELETE FROM Table;
INSERT INTO Table (Col1, Col2, Col3) SELECT Col1, Col2, Col3 FROM #Table;
DROP TABLE #Table;