Update data using IF in mysql and define 'dont do anything' when if false

Question

Im trying to use IF query in update some entire row in my mysql table. As known IF query have 3 parameters. Part 1 of what you looking for, part 2 if its found / true and part 3

Answer 1

You can reassign the same value of column in FALSE part to do nothing.

Try this:

UPDATE tableA SET COL1 = IF(a=b, c, COL1)