-- find SELECT * FROM availability WHERE dayofweek = "Thursday" AND DAYOFWEEK(startTime) <> 5; --fix UPDATE availability SET dayofweek = CASE DAYOFWEEK(startTime) WHEN 1 THEN 'Sunday' WHEN 2 THEN 'Monday' WHEN 3 THEN 'Tuesday' WHEN 4 THEN 'Wednesday' WHEN 5 THEN 'Thursday' WHEN 6 THEN 'Friday' WHEN 7 THEN 'Saturday' END WHERE dayofweek != CASE DAYOFWEEK(startTime) WHEN 1 THEN 'Sunday' WHEN 2 THEN 'Monday' WHEN 3 THEN 'Tuesday' WHEN 4 THEN 'Wednesday' WHEN 5 THEN 'Thursday' WHEN 6 THEN 'Friday' WHEN 7 THEN 'Saturday' END;