Sub-Abfrage Rückkehr mehr als eine Zeile

Question

select id, first_name, family_name, eq_id, 
     date_of_birth, gender, indigenous, eal_d, 
     atsi, icp, disability_category, 
     (select raw_score 
     from path_maths_term0 as T0 
     where T0.eq_id=S.eq_id and year=2011 
     ) as raw_score_2011term1, 
     (select raw_score 
     from path_maths_term0 as T0 
     where T0.eq_id=S.eq_id and year=2011 
     ) as raw_score_2011term1, 
     (select scale_score 
     from path_maths_term0 as T0 
     where T0.eq_id=S.eq_id and year=2011 
     ) as scale_score_2011term1, 
     (select percentile 
     from path_maths_term0 as T0 
     where T0.eq_id=S.eq_id and year=2011 
     ) as percentile_2011term1, 
     (select stanine 
     from path_maths_term0 as T0 
     where T0.eq_id=S.eq_id and year=2011 
    ) as stanine_2011term1, 
     class 
     from student_details as S 
     where S.school_id ="SCH00001" and S.class = " 5B" 

Answer 1

Versuchen Sie, diese

select id, first_name, family_name, eq_id, date_of_birth, gender, indigenous, eal_d, atsi, icp, disability_category, 

(select raw_score from path_maths_term0 as T0 where T0.eq_id=S.eq_id and T0.year=2011) as raw_score_2011term1, 
(select scale_score from path_maths_term0 as T0 where T0.eq_id=S.eq_id and T0.year=2011) as scale_score_2011term1, 

(select percentile from path_maths_term0 as T0 where T0.eq_id=S.eq_id and T0.year=2011) as percentile_2011term1, 

(select stanine from path_maths_term0 as T0 where T0.eq_id=S.eq_id and T0.year=2011) as stanine_2011term1, 
class from student_details as S 
where S.school_id ="SCH00001" and S.class = " 5B" 

Answer 2

Verwenden LIMIT 1 in Ihre Unterabfragen wie

select raw_score from path_maths_term0 as T0 where T0.eq_id=S.eq_id and year=2011 LIMIT 1