查询无法使用所需的输出

Question

我正在尝试编写查询以显示由逗号分隔的posterTitle和corrosponding AVERAGE SCORES。但我没有得到它。

SELECT submission.postertTtle, GROUP_CONCAT(judge_review.avgPoints) as 
avgPoints FROM submission,sub_judge,judge_review WHERE 
submission.submissionID=sub_judge.sub_id and 
sub_judge.judge_id=judge_review.j_ID GROUP by submission.postertTtle

 Desired Output:


posterTitle | avgpoints
Conference  | 5,3,1
new poster  |   1.5,2

Answer 1

 select submission.postertTtle, GROUP_CONCAT(judge_review.avgPoints) as avgPoints 
 FROM submission 
 INNER join judge_review ON submission.submissionID=judge_review.sub_ID 
 GROUP by submission.postertTtle