[英]SQL Server Pivot on two columns
你想要条件聚合:
select id,
sum(case when name = 'A' then eng end) as a_eng,
sum(case when name = 'A' then mat end) as a_mat,
. . . ,
sum(case when name = 'B' then eng end) as b_eng,
sum(case when name = 'B' then mat end) as b_mat,
. . .
from t
group by id;
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