Terdapat dua jadual, Jadual 1 ->T1:
jenis masa nama id
1 A hh 1
2 B kk 1
3 c vv 2
Jadual 2- > ; T2：
id pid setiap
1 1 20
2 1 10
3 1 5
4 2 15
5 2 10
6 3 25
7 3 35
pid jadual 2 dikaitkan dengan id jadual 1, apabila taip =1 , berharap untuk mendapatkan dua keping data berikut:
1 A hh 20 10 5 (35)
2 B kk 15 10 (25)
Tolong beritahu saya cara menulis pernyataan sql, terima kasih! PS: Rangka kerja thinkPHP digunakan
2
0
0
select t1.id, t1.name, t1.time, sum(t2.every)
from t1
inner join t2 on t1.id=t2.pid
group by t1.id, t1.name, t1.time
SELECT T1.id,T1.name,T1.time,SUM(T2.every)
FROM T1
INNER JOIN T2 ON T1.id = T2.pid
GROUP BY T1.id;
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