salix/db/changes/231601/00-updateIsVies.sql

    UPDATE vn.supplier s
            JOIN vn.country c ON c.id = s.countryFk
        SET s.nif = MID(REPLACE(s.nif, ' ', ''), 3, LENGTH(REPLACE(s.nif, ' ', '')) - 1)
        WHERE s.isVies = TRUE 
            AND c.code = LEFT(REPLACE(s.nif, ' ', ''), 2);