SELECT DISTINCT name FROM Reviewer AS T1 JOIN Rating AS T2 ON T1.rID  =  T2.rID WHERE ratingDate  =  "null"
What are the different names of all reviewers whose ratings do not have a date field?
SELECT DISTINCT name FROM Reviewer AS T1 JOIN Rating AS T2 ON T1.rID = T2.rID WHERE ratingDate = `` null ''
select distinct name from reviewer as t1 join rating as t2 on t1 . rid = t2 . rid where ratingdate = value
What are the different names of all reviewers whose ratings do not have a date field ?