state 0, 1,2 // 未使用 更新 刪除
根據customerid寫一條sql (注意是一條)生成表的結構如下:
customerid state0 state1 state2
001 11 212 333
002 15 545 3
select customid,
count(case status when 0 then status else null end) as status-0,
count(case status when 1 then status else null end) as status-1,
count(case status when 2 then status else null end) as status-2
from custom group by customid.