Question

I want to select a row (that appears multiple times) from a table ONLY if the column ‘WRONG’ never reads “YES”.That means if the row exists 100 times and only one time WRONG=yes, then do no display ANY rows in the result.

*And if possible no variables and while loops please. If it can’t be done, then go ahead and post a solution with a variable.

Here is an example of table structure:

table 1

USER--WRONG--otherColumns
bob              data   
bob              data 
bob              data 
bob              data     
bob              data
bob   YES        data
bob              data 
bob              data 
jon              data 

RESULT should be:
jon (because one time Wrong was equal to yes for the user bob)

This code ofcourse doesn’t omit all bobs. Only one is omitted:

SELECT USER FROM table1 WHERE wrong <> 'yes'

Answer 1

SELECT *
FROM table1 t1
WHERE NOT EXISTS
  (SELECT 1
   FROM table1 t2
   WHERE t1.user = t2.user
   AND wrong = 'yes');