mysql重点テーマ--「01」課程が「02」課程より成績の高い学生の情報と課程点数を照会する

select 
st.*,
sc.s_score '  ',
sc2.score2 '  ',
inner join score sc on sc.s_id =st.s_id and sc.c_id='01'
inner join score sc2 on sc2.s_id =st.s_id and sc2.c_id='02'
where sc.s_score> sc2.s_score

SELECT  
st.*,
sc.s_score AS '  ',
sc2.s_score AS '  '

FROM 
student st
 LEFT JOIN score sc ON sc.s_id=st.s_id AND sc.c_id='01'
 LEFT JOIN score sc2 ON sc2.s_id=st.s_id AND sc2.c_id='02'
WHERE sc.s_score>sc2.s_score