How not to select lines with values from an informed list of values

Question

Instead of using the logical operator of different !=, would like to use a code that performs the query disregarding a list of values as in In only that the reverse.

Select from teste where teste1 (código) ('x','y','a','g')

I’m using the != but I need to write many command lines to bring what I need, because there are several data that I do not need to be consulted.

Answer 1

Use Not In

Select from Tabela where Coluna Not In ('x', 'y', 'a', 'g')