一段值得紀念的SQL語句

select m.dfhm,m.zbjlx,count(1),round(sum(m.thsc)/count(1),1)
  from T_ANALYS_PHONE_DETAIL m
 where m.dfhm in (select dfhm
                  from (select t.dfhm, t.zbjlx
                          from T_ANALYS_PHONE_DETAIL t
                         where pid = 'PM460100140000201111000001'
                         group by t.dfhm, t.zbjlx)
                 group by dfhm
                having count(1) < 2)
    and pid = 'PM460100140000201111000001'
                  group by m.dfhm,m.zbjlx
                having count(1)>=30

數據源參考

pid	dfhm(對方號碼)	zbjlx(主被呼叫類型)	thsc（通話時長）	......
PM460100140000201111000001	12345678	主叫	32
PM460100140000201111000001	22222222	被叫	123
PM460100140000201111000001	12345678	主叫	132
PM460100140000201111000002	22222222	主叫	234
PM460100140000201111000001	22222222	被叫	52
PM460100140000201111000001	87654321	主叫	57
PM460100140000201111000001	68787987	主叫	5
...	...	...	...

 

 

查詢結果參考

對方號碼（dfhm）	類型	次數（>30）	平均時長（秒）	選擇
12345678	只呼不應	60	35.5
22222222	只應不呼	40	23
87654321	只呼不應	35	222.4
...	...	...	...