用s q l實現留存率的實現。

DROP TABLE IF EXISTS bigdata2c.temp_shihuo_shoe_daidai_1118_04 ;
CREATE TABLE IF NOT EXISTS bigdata2c.temp_shihuo_shoe_daidai_1118_04 AS
SELECT  temp.order_month 
        ,COUNT(distinct user_id_month_0) AS month_01
        ,COUNT(distinct user_id_month_1) AS month_02
        ,COUNT(distinct
 
 user_id_month_2) AS month_03
        ,COUNT(distinct user_id_month_3) AS month_04
        ,COUNT(distinct user_id_month_4) AS month_05
        ,COUNT(distinct user_id_month_5) AS month_06
        ,COUNT(distinct user_id_month_6) AS month_07
        ,COUNT(distinct user_id_month_7) AS month_08
        ,COUNT
 
(distinct user_id_month_8) AS month_09
        ,COUNT(distinct user_id_month_9) AS month_10
        ,COUNT(distinct user_id_month_10) AS month_11
        ,COUNT(distinct user_id_month_11) AS month_12
        ,COUNT(distinct user_id_month_12) AS month_13
FROM    (
            SELECT  distinct a.order_month
                    ,a.user_id_month_0
                    ,b.client_str 
 
AS user_id_month_1
                    ,c.client_str AS user_id_month_2
                    ,d.client_str AS user_id_month_3
                    ,f.client_str AS user_id_month_4
                    ,g.client_str AS user_id_month_5
                    ,h.client_str AS user_id_month_6
                    ,i.client_str AS user_id_month_7
                    ,j.client_str AS user_id_month_8
                    ,k.client_str AS user_id_month_9
                    ,l.client_str AS user_id_month_10
                    ,m.client_str AS user_id_month_11
                    ,n.client_str AS user_id_month_12
            FROM    (
                       SELECT  distinct  SUBSTR(create_time,1,6) as order_month
                                ,client_str AS user_id_month_0
                        FROM    bigdata2c.temp_shihuo_shoe_daidai_1118_01
                        where client_str is not NULL 
                        and create_time is not NULL 
                        and SUBSTR(create_time,1,6) >=201910
                        and SUBSTR(create_time,1,6) <=202010
                    ) a
            LEFT JOIN bigdata2c.temp_shihuo_shoe_daidai_1118_02 b
            ON      DATEDIFF( to_date(b.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 1
            AND     a.user_id_month_0 = b.client_str 
            LEFT JOIN    bigdata2c.temp_shihuo_shoe_daidai_1118_02 c
            ON      DATEDIFF( to_date(c.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 2
            AND     a.user_id_month_0 = c.client_str
            LEFT JOIN bigdata2c.temp_shihuo_shoe_daidai_1118_02 d
            ON      DATEDIFF( to_date(d.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 3
            AND     a.user_id_month_0 = d.client_str LEFT
            JOIN    bigdata2c.temp_shihuo_shoe_daidai_1118_02 f
            ON      DATEDIFF( to_date(f.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 4
            AND     a.user_id_month_0 = f.client_str
            LEFT JOIN bigdata2c.temp_shihuo_shoe_daidai_1118_02 g
            ON      DATEDIFF( to_date(g.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 5
            AND     a.user_id_month_0 = g.client_str LEFT
            JOIN    bigdata2c.temp_shihuo_shoe_daidai_1118_02 h
            ON      DATEDIFF( to_date(h.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 6
            AND     a.user_id_month_0 = h.client_str
            LEFT JOIN bigdata2c.temp_shihuo_shoe_daidai_1118_02 i
            ON      DATEDIFF( to_date(i.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 7
            AND     a.user_id_month_0 = i.client_str LEFT
            JOIN    bigdata2c.temp_shihuo_shoe_daidai_1118_02 j
            ON      DATEDIFF( to_date(j.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 8
            AND     a.user_id_month_0 = j.client_str
            LEFT JOIN bigdata2c.temp_shihuo_shoe_daidai_1118_02 k
            ON      DATEDIFF( to_date(k.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 9
            AND     a.user_id_month_0 = k.client_str LEFT
            JOIN    bigdata2c.temp_shihuo_shoe_daidai_1118_02 l
            ON      DATEDIFF( to_date(l.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 10
            AND     a.user_id_month_0 = l.client_str
            LEFT JOIN bigdata2c.temp_shihuo_shoe_daidai_1118_02 m
            ON      DATEDIFF( to_date(m.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 11
            AND     a.user_id_month_0 = m.client_str LEFT
            JOIN    bigdata2c.temp_shihuo_shoe_daidai_1118_02 n
            ON      DATEDIFF( to_date(n.order_month,'yyyymm'),to_date(a.order_month,'yyyymm'),'mm') = 12
            AND     a.user_id_month_0 = n.client_str
        ) temp
group by temp.order_month
;