如何通过mysql解决计数不同的组

Question

我有一个关于distinct和group by的问题，请帮帮我

KTP            KECAMATAN          
1111111        PARIAMAN
1111111        PARIAMAN
2222222        PAYAKUMBUH
1111111        PAYAKUMBUH

我想要像这样的结果

KECAMATAN        KTP        TOTAL
PARIAMAN         1111111    2
PAYAKUMBUH       1111111    1
PAYAKUMBUH       2222222    1


select KTP, KECAMATAN, COUNT(distinct KTP) as TOTAL 
from TABLE_A 
group by kecamatan

Answer 1

试试这个：

SELECT KTP, KECAMATAN, COUNT(KECAMATAN) as TOTAL
FROM TABLE_A 
GROUP BY KTP,KECAMATAN;