Question

The update statement is like this

UPDATE table_name
SET column1=value, column2=value2,...
WHERE some_column=some_value

However
for a simple table

cola colb colc cold cole

I would like not to update colc and cole

but i do not know the exact structue (I can not tell how many col there, may be colf exist too)

So how to update the column that exclude colc and cole? Thank you

Answer 1

You do not have to define all columns of a table when you do a UPDATE statement in MySQL. Only the columns that you tell it to update will be updated.

UPDATE your_table
SET
  cola='New Value'
  ,colb='Another'
  ,cold='And Another'
WHERE id_column = 1234

This will not change the value of colc or cole.