我有一个带有以下列和样本数据的oracle表DM_TEMP_SUMMING_DVC_BY_FW。以下数据显示
-dmc_id ='408'有2109个设备有firmware_version ='RT1'，它是第一个firmware_version，因为此firmware_image的image_prerequisite为null。
-dmc_id ='408'有40个设备将firmware_version ='RT2'从“RT1”移开，依此类推。
要求是创建firmware_versions链和移动链的设备数量。例如：
Firmware_version movement is RT1-->RT2-->RT3-->RT4
so the count of devices moved from RT1 to RT4 is (RT1+RT2+RT3+RT4)
count of devices moved from RT2 to RT4 is (RT2+RT3+RT4)
count of devices moved from RT3 to RT4 is (RT3+RT4)
count of devices at last firmware_version is RT4
以下是表DM_TEMP_SUMMING_DVC_BY_FW中的输入数据
+-----------+-------+-----------------+-----------------+------------------+-------------------+
device_count| dmc_id| firmware_version| cg_id |image_prerequisite| count_within_dmcid|
+-----------+-------+-----------------+-----------------+------------------+-------------------+
| 40 | 408 |RT2 |0 |RT1 | 24028 |
| 24 | 408 |RT3 |0 |RT2 | 24028 |
| 18 | 408 |RT4 |0 |RT3 | 24028 |
| 2109 | 408 |RT1 |0 |null | 24028 |
| 1 | 1422 |RT1 |0 |null | 7 |
| 1 | 1422 |RT2 |0 |RT1 | 7 |
| 1 | 408 |RT1 |HFOTA-0000000041 |null | 1 |
| 1 | 408 |RT1 |HFOTA-0000000334 |null | 2 |
| 1 | 408 |RT1 |HFOTA-0000000359 |null | 1 |
| 1 | 408 |RT1 |HFOTA-0000000441 |null | 1 |
| 1 | 408 |RT1 |HFOTA-0000001885 |null | 2 |
| 4 | 408 |SVP01 |0 |null | 24028 |
| 11 | 408 |Sanity01 |0 |null | 24028 |
| 1 | 408 |Sanity1 |0 |null | 24028 |
| 6 | 408 |TB_HT01 |0 |null | 24028 |
| 1 | 408 |TEST_1 |0 |null | 24028 |
| 5 | 408 |TK_ST001 |0 |null | 24028 |
+-----------+-------+-----------------+-----------------+------------------+-------------------+
查询我已执行：
SELECT
chain,
firmware_version as fw,
device_count as cnt,
dmc_id,
cg_id,
count_within_dmcid,
sum( device_count ) over ( partition by dmc_id, cg_id order by lev desc ) as cumm
FROM (
select t.* , level lev,
sys_connect_by_path( firmware_version, '/' ) as chain
from DM_TEMP_SUMMING_DVC_BY_FW t
START WITH image_prerequisite IS null
CONNECT BY nocycle PRIOR firmware_version=image_prerequisite
AND PRIOR dmc_id = dmc_id
AND PRIOR cg_id = cg_id
) x
order by dmc_id, cg_id, lev desc
;
结果查询返回：
+-----------------+---------+-----+------+----------------+------------------+----+
chain |fw |cnt |dmc_id| cg_id |count_within_dmcid|cumm|
+-----------------+---------+-----+------+----------------+------------------+----+
|/RT1/RT2/RT3/RT4 | RT4 | 18| 408 | 0 | 24028 | 18|
|/RT1/RT2/RT3 | RT3 | 24| 408 | 0 | 24028 | 42|
|/RT1/RT2 | RT2 | 40| 408 | 0 | 24028 | 82|
|/Sanity1 |Sanity1 | 1 | 408 | 0 | 24028 |2219|
|/TB_HT01 |TB_HT01 | 6 | 408 | 0 | 24028 |2219|
|/Sanity01 |Sanity01 | 11| 408 | 0 | 24028 |2219|
|/SVP01 |SVP01 | 4 | 408 | 0 | 24028 |2219|
|/RT1 | RT1 |2109 | 408 | 0 | 24028 |2219|
|/TEST_1 |TEST_1 | 1 | 408 | 0 | 24028 |2219|
|/TK_ST001 |TK_ST001 | 5 | 408 | 0 | 24028 |2219|
|/RT1 |RT1 | 1 | 408 |HFOTA-0000000041| 1 | 1 |
|/RT1 |RT1 |1 | 408 |HFOTA-0000000334| 2 | 1 |
|/RT1 |RT1 |1 | 408 |HFOTA-0000000359| 1 | 1 |
|/RT1 |RT1 |1 | 408 |HFOTA-0000000441| 1 | 1 |
|/RT1 |RT1 |1 | 408 |HFOTA-0000001885| 2 | 1 |
|/RT1/RT2 |RT2 |1 |1422 | 0 | 7 | 1 |
|/RT1 |RT1 |1 |1422 | 0 | 7 | 2 |
+-----------------+---------+-----+------+----------------+------------------+----+
预期结果：
+-----------------+---------+-----+------+----------------+------------------+----+
chain |fw |cnt |dmc_id| cg_id |count_within_dmcid|cumm|
+-----------------+---------+-----+------+----------------+------------------+----+
|/RT1/RT2/RT3/RT4 | RT4 | 18| 408 | 0 | 24028 | 18|
|/RT1/RT2/RT3 | RT3 | 24| 408 | 0 | 24028 | 42|
|/RT1/RT2 | RT2 | 40| 408 | 0 | 24028 | 82|
|/Sanity1 |Sanity1 | 1 | 408 | 0 | 24028 | 1 |
|/TB_HT01 |TB_HT01 | 6 | 408 | 0 | 24028 | 6 |
|/Sanity01 |Sanity01 | 11| 408 | 0 | 24028 | 11 |
|/SVP01 |SVP01 | 4 | 408 | 0 | 24028 | 4 |
|/RT1 | RT1 |2109 | 408 | 0 | 24028 |2191|
|/TEST_1 |TEST_1 | 1 | 408 | 0 | 24028 | 1 |
|/TK_ST001 |TK_ST001 | 5 | 408 | 0 | 24028 | 5 |
|/RT1 |RT1 | 1 | 408 |HFOTA-0000000041| 1 | 1 |
|/RT1 |RT1 |1 | 408 |HFOTA-0000000334| 2 | 1 |
|/RT1 |RT1 |1 | 408 |HFOTA-0000000359| 1 | 1 |
|/RT1 |RT1 |1 | 408 |HFOTA-0000000441| 1 | 1 |
|/RT1 |RT1 |1 | 408 |HFOTA-0000001885| 2 | 1 |
|/RT1/RT2 |RT2 |1 |1422 | 0 | 7 | 1 |
|/RT1 |RT1 |1 |1422 | 0 | 7 | 2 |
+-----------------+---------+-----+------+----------------+------------------+----+
请为此问题提出任何解决方案。
提前致谢！
拆分链的另一种情况 -
在DM_TEMP_SUMMING_DVC_BY_FW表中输入数据。
+-----------+-------+-----------------+-----------------+------------------+-------------------+
device_count| dmc_id| firmware_version| cg_id |image_prerequisite| count_within_dmcid|
+-----------+-------+-----------------+-----------------+------------------+-------------------+
| 5 | 3345 |SU.B |0000000000000000 |SU.A | 93 |
| 6 | 3345 |SU.C |0000000000000000 |SU.B | 93 |
| 8 | 3345 |SU.D |0000000000000000 |SU.C | 93 |
| 8 | 3345 |SU.E |0000000000000000 |SU.C | 93 |
| 20 | 3345 |SU.F |0000000000000000 |SU.D | 93 |
| 20 | 3345 |SU.F |0000000000000000 |SU.E | 93 |
| 10 | 3345 |SU.G |0000000000000000 |SU.F | 93 |
| 11 | 3345 |SU.H |0000000000000000 |SU.F | 93 |
| 20 | 3345 |SU.I |0000000000000000 |SU.G | 93 |
| 20 | 3345 |SU.I |0000000000000000 |SU.H | 93 |
| 5 | 3345 |SU.A |0000000000000000 |null | 93 |
| 40 | 408 |RT2 |0000000000000000 |RT1 | 24028 |
| 24 | 408 |RT3 |0000000000000000 |RT2 | 24028 |
| 18 | 408 |RT4 |0000000000000000 |RT3 | 24028 |
| 2109 | 408 |RT1 |0000000000000000 |null | 24028 |
| 1 | 142 |RT1 |0000000000000000 |null | 7 |
| 1 | 142 |RT2 |0000000000000000 |RT1 | 7 |
| 1 | 408 |RT1 |HFOTA-0000000041 |null | 1 |
| 1 | 408 |RT1 |HFOTA-0000000334 |null | 2 |
| 1 | 408 |RT1 |HFOTA-0000000359 |null | 1 |
| 1 | 408 |RT1 |HFOTA-0000000441 |null | 1 |
| 1 | 408 |RT1 |HFOTA-0000001885 |null | 2 |
| 4 | 408 |SVP01 |0000000000000000 |null | 24028 |
| 11 | 408 |Sanity01 |0000000000000000 |null | 24028 |
| 1 | 408 |Sanity1 |0000000000000000 |null | 24028 |
| 6 | 408 |TB_HT01 |0000000000000000 |null | 24028 |
| 1 | 408 |TEST_1 |0000000000000000 |null | 24028 |
| 5 | 408 |TK_ST001 |0000000000000000 |null | 24028 |
+-----------+-------+-----------------+-----------------+------------------+-------------------+
此查询在路径拆分方案数据中打破。
SU.A (5) -- Level 1
|
SU.B (5) -- Level 2
|
SU.C (6) -- Level 3
/ \
(8) SU.D SU.E (8) -- Level 4
\ /
SU.F (20) -- Level 5
/ \
(10) SU.G SU.H (11) -- Level 6
\ /
SU.I (20) -- Level 7
使用的查询：
SELECT chain,
root_fw,
firmware_version,
device_count,
dmc_id,
charging_group_id,
count_within_dmcid,
SUM(device_count) over(PARTITION BY dmc_id, cg_id, root_fw ORDER BY lev DESC),
lev
FROM (SELECT t.*,
LEVEL lev,
sys_connect_by_path(firmware_version, '/') AS chain,
connect_by_root(firmware_version) root_fw
FROM dm_temp_summing_dvc_by_fw t
START WITH image_prerequisite IS NULL
CONNECT BY nocycle PRIOR firmware_version = image_prerequisite
AND PRIOR dmc_id = dmc_id
AND PRIOR cg_id = cg_id) x
ORDER BY dmc_id,
cg_id,
lev DESC;
输出输出：
+-----------------------------------+--------+--------+-------------+------+----------------+------------------+----+---+
chain |root_fw |fw |device_count |dmc_id| cg_id |count_within_dmcid|cumm|lev|
+-----------------------------------+--------+--------+-------------+------+----------------+------------------+----+---+
|/SU.A/SU.B/SU.C/SU.D/SU.F/SU.G/SU.I|SU.A |SU.I | 20 |3345 |0000000000000000|93 |80 |7 |
|/SU.A/SU.B/SU.C/SU.E/SU.F/SU.H/SU.I|SU.A |SU.I | 20 |3345 |0000000000000000|93 |80 |7 |
|/SU.A/SU.B/SU.C/SU.E/SU.F/SU.G/SU.I|SU.A |SU.I | 20 |3345 |0000000000000000|93 |80 |7 |
|/SU.A/SU.B/SU.C/SU.D/SU.F/SU.H/SU.I|SU.A |SU.I | 20 |3345 |0000000000000000|93 |80 |7 |
|/SU.A/SU.B/SU.C/SU.E/SU.F/SU.G |SU.A |SU.G | 10 |3345 |0000000000000000|93 |122 |6 |
|/SU.A/SU.B/SU.C/SU.D/SU.F/SU.G |SU.A |SU.G | 10 |3345 |0000000000000000|93 |122 |6 |
|/SU.A/SU.B/SU.C/SU.D/SU.F/SU.H |SU.A |SU.H | 11 |3345 |0000000000000000|93 |122 |6 |
|/SU.A/SU.B/SU.C/SU.E/SU.F/SU.H |SU.A |SU.H | 11 |3345 |0000000000000000|93 |122 |6 |
|/SU.A/SU.B/SU.C/SU.E/SU.F |SU.A |SU.F | 20 |3345 |0000000000000000|93 |162 |5 |
|/SU.A/SU.B/SU.C/SU.D/SU.F |SU.A |SU.F | 20 |3345 |0000000000000000|93 |162 |5 |
|/SU.A/SU.B/SU.C/SU.E |SU.A |SU.E | 8 |3345 |0000000000000000|93 |178 |4 |
|/SU.A/SU.B/SU.C/SU.D |SU.A |SU.D | 8 |3345 |0000000000000000|93 |178 |4 |
|/SU.A/SU.B/SU.C |SU.A |SU.C | 6 |3345 |0000000000000000|93 |184 |3 |
|/SU.A/SU.B |SU.A |SU.B | 5 |3345 |0000000000000000|93 |189 |2 |
|/SU.A |SU.A |SU.A | 5 |3345 |0000000000000000|93 |194 |1 |
|/RT1/RT2/RT3/RT4 |RT1 |RT4 | 18 |408 |0000000000000000|24028 |18 |4 |
|/RT1/RT2/RT3 |RT1 |RT3 | 24 |408 |0000000000000000|24028 |42 |3 |
|/RT1/RT2 |RT1 |RT2 | 40 |408 |0000000000000000|24028 |82 |2 |
|/Sanity1 |Sanity1 |Sanity1 | 1 |408 |0000000000000000|24028 |1 |1 |
|/TB_HT01 |TB_HT01 |TB_HT01 | 6 |408 |0000000000000000|24028 |6 |1 |
|/Sanity01 |Sanity01|Sanity01| 11 |408 |0000000000000000|24028 |11 |1 |
|/SVP01 |SVP01 |SVP01 | 4 |408 |0000000000000000|24028 |4 |1 |
|/RT1 |RT1 |RT1 | 2109 |408 |0000000000000000|24028 |2191|1 |
|/TEST_1 |TEST_1 |TEST_1 | 1 |408 |0000000000000000|24028 |1 |1 |
|/TK_ST001 |TK_ST001|TK_ST001| 5 |408 |0000000000000000|24028 |5 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000000041|1 |1 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000000334|2 |1 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000000359|1 |1 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000000441|1 |1 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000001885|2 |1 |1 |
|/RT1/RT2 |RT1 |RT2 | 1 |1422 |0000000000000000|7 |1 |2 |
|/RT1 |RT1 |RT1 | 1 |1422 |0000000000000000|7 |2 |1 |
+-----------------------------------+--------+--------+-------------+------+----------------+------------------+----+---+
链式和累积计数对于回归链A - B-C-D来说是正确的，但如果我们有分裂链，则它会对所有生成的链进行总结。
SU.A - 93 A+B+C+D+E+F+G+H+I
SU.B - 88 B+C+D+E+F+G+H+I
SU.C - 83 C+D+E+F+G+H+I
SU.D - 0 (Cummulative count will be zero if we have two or more FW at same level)
SU.E - 0 (Cummulative count will be zero if we have two or more FW at same level)
SU.F - 61 F+G+H+I
SU.G - 0 Cummulative count will be zero if we have two or more FW at same level)
SU.H - 0 Cummulative count will be zero if we have two or more FW at same level)
SU.I - 20 I
此拆分方案中的预期输出：
+---------------------------------------------+--------+--------+-------------+------+----------------+------------------+----+---+
chain |root_fw |fw |device_count |dmc_id| cg_id |count_within_dmcid|cumm|lev|
+---------------------------------------------+--------+--------+-------------+------+----------------+------------------+----+---+
|/SU.A/SU.B/SU.C/SU.D/SU.E/SU.F/SU.G/SU.H/SU.I|SU.A |SU.I | 20 |3345 |0000000000000000|93 |20 |7 |
|/SU.A/SU.B/SU.C/SU.D/SU.E/SU.F/SU.G/SU.H/ |SU.A |SU.H | 11 |3345 |0000000000000000|93 |0 |6 |
|/SU.A/SU.B/SU.C/SU.D/SU.E/SU.F/SU.G |SU.A |SU.G | 10 |3345 |0000000000000000|93 |0 |6 |
|/SU.A/SU.B/SU.C/SU.D/SU.E/SU.F |SU.A |SU.F | 20 |3345 |0000000000000000|93 |61 |5 |
|/SU.A/SU.B/SU.C/SU.D/SU.E |SU.A |SU.E | 8 |3345 |0000000000000000|93 |0 |4 |
|/SU.A/SU.B/SU.C/SU.D |SU.A |SU.D | 8 |3345 |0000000000000000|93 |0 |4 |
|/SU.A/SU.B/SU.C |SU.A |SU.C | 6 |3345 |0000000000000000|93 |83 |3 |
|/SU.A/SU.B |SU.A |SU.B | 5 |3345 |0000000000000000|93 |88 |2 |
|/SU.A |SU.A |SU.A | 5 |3345 |0000000000000000|93 |93 |1 |
|/RT1/RT2/RT3/RT4 |RT1 |RT4 | 18 |408 |0000000000000000|24028 |18 |4 |
|/RT1/RT2/RT3 |RT1 |RT3 | 24 |408 |0000000000000000|24028 |42 |3 |
|/RT1/RT2 |RT1 |RT2 | 40 |408 |0000000000000000|24028 |82 |2 |
|/Sanity1 |Sanity1 |Sanity1 | 1 |408 |0000000000000000|24028 |1 |1 |
|/TB_HT01 |TB_HT01 |TB_HT01 | 6 |408 |0000000000000000|24028 |6 |1 |
|/Sanity01 |Sanity01|Sanity01| 11 |408 |0000000000000000|24028 |11 |1 |
|/SVP01 |SVP01 |SVP01 | 4 |408 |0000000000000000|24028 |4 |1 |
|/RT1 |RT1 |RT1 | 2109 |408 |0000000000000000|24028 |2191|1 |
|/TEST_1 |TEST_1 |TEST_1 | 1 |408 |0000000000000000|24028 |1 |1 |
|/TK_ST001 |TK_ST001|TK_ST001| 5 |408 |0000000000000000|24028 |5 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000000041|1 |1 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000000334|2 |1 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000000359|1 |1 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000000441|1 |1 |1 |
|/RT1 |RT1 |RT1 | 1 |408 |HFOTA-0000001885|2 |1 |1 |
|/RT1/RT2 |RT1 |RT2 | 1 |1422 |0000000000000000|7 |1 |2 |
|/RT1 |RT1 |RT1 | 1 |1422 |0000000000000000|7 |2 |1 |
+---------------------------------------------+--------+--------+-------------+------+----------------+------------------+----+---+
答案 0 :(得分：1)
看起来你缺少的就是对root firmware_version进行分区，你可以使用connect_by_root()进行分区，如下所示：
WITH dm_temp_summing_dvc_by_fw AS (SELECT 40 device_count, 408 dmc_id, 'RT2' firmware_version, '0000' cg_id, 'RT1' image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 24 device_count, 408 dmc_id, 'RT3' firmware_version, '0000' cg_id, 'RT2' image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 18 device_count, 408 dmc_id, 'RT4' firmware_version, '0000' cg_id, 'RT3' image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 2109 device_count, 408 dmc_id, 'RT1' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 1422 dmc_id, 'RT1' firmware_version, '0000' cg_id, NULL image_prerequisite, 7 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 1422 dmc_id, 'RT2' firmware_version, '0000' cg_id, 'RT1' image_prerequisite, 7 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA1' cg_id, NULL image_prerequisite, 1 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA2' cg_id, NULL image_prerequisite, 2 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA3' cg_id, NULL image_prerequisite, 1 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA4' cg_id, NULL image_prerequisite, 1 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA5' cg_id, NULL image_prerequisite, 2 count_within_dmcid FROM dual UNION ALL
SELECT 4 device_count, 408 dmc_id, 'SVP01' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 11 device_count, 408 dmc_id, 'Sanity01' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'Sanity1' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 6 device_count, 408 dmc_id, 'TB_HT01' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'TEST_1' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 5 device_count, 408 dmc_id, 'TK_ST001' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual)
SELECT chain,
root_fw,
firmware_version AS fw,
device_count AS cnt,
dmc_id,
cg_id,
lev,
count_within_dmcid,
SUM(device_count) over(PARTITION BY dmc_id, cg_id, root_fw ORDER BY lev DESC) AS cumm
FROM (SELECT t.*,
LEVEL lev,
sys_connect_by_path(firmware_version, '/') AS chain,
connect_by_root(firmware_version) root_fw
FROM dm_temp_summing_dvc_by_fw t
START WITH image_prerequisite IS NULL
CONNECT BY nocycle PRIOR firmware_version = image_prerequisite
AND PRIOR dmc_id = dmc_id
AND PRIOR cg_id = cg_id) x
ORDER BY dmc_id,
cg_id,
lev DESC;
结果如下：
CHAIN ROOT_FW FW CNT DMC_ID CG_ID LEV COUNT_WITHIN_DMCID CUMM
----------------- -------- -------- ---------- ---------- ------ ---------- ------------------ ----------
/RT1/RT2/RT3/RT4 RT1 RT4 18 408 0000 4 24028 18
/RT1/RT2/RT3 RT1 RT3 24 408 0000 3 24028 42
/RT1/RT2 RT1 RT2 40 408 0000 2 24028 82
/Sanity1 Sanity1 Sanity1 1 408 0000 1 24028 1
/TB_HT01 TB_HT01 TB_HT01 6 408 0000 1 24028 6
/Sanity01 Sanity01 Sanity01 11 408 0000 1 24028 11
/SVP01 SVP01 SVP01 4 408 0000 1 24028 4
/RT1 RT1 RT1 2109 408 0000 1 24028 2191
/TEST_1 TEST_1 TEST_1 1 408 0000 1 24028 1
/TK_ST001 TK_ST001 TK_ST001 5 408 0000 1 24028 5
/RT1 RT1 RT1 1 408 HFOTA1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA2 1 2 1
/RT1 RT1 RT1 1 408 HFOTA3 1 1 1
/RT1 RT1 RT1 1 408 HFOTA4 1 1 1
/RT1 RT1 RT1 1 408 HFOTA5 1 2 1
/RT1/RT2 RT1 RT2 1 1422 0000 2 7 1
/RT1 RT1 RT1 1 1422 0000 1 7 2
ETA：
由于额外要求处理firmeware彼此处于同一水平的情况，我认为*这样做符合您的要求：
WITH dm_temp_summing_dvc_by_fw AS (SELECT 40 device_count, 408 dmc_id, 'RT2' firmware_version, '0000' cg_id, 'RT1' image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 24 device_count, 408 dmc_id, 'RT3' firmware_version, '0000' cg_id, 'RT2' image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 18 device_count, 408 dmc_id, 'RT4' firmware_version, '0000' cg_id, 'RT3' image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 2109 device_count, 408 dmc_id, 'RT1' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 1422 dmc_id, 'RT1' firmware_version, '0000' cg_id, NULL image_prerequisite, 7 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 1422 dmc_id, 'RT2' firmware_version, '0000' cg_id, 'RT1' image_prerequisite, 7 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA1' cg_id, NULL image_prerequisite, 1 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA2' cg_id, NULL image_prerequisite, 2 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA3' cg_id, NULL image_prerequisite, 1 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA4' cg_id, NULL image_prerequisite, 1 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'RT1' firmware_version, 'HFOTA5' cg_id, NULL image_prerequisite, 2 count_within_dmcid FROM dual UNION ALL
SELECT 4 device_count, 408 dmc_id, 'SVP01' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 11 device_count, 408 dmc_id, 'Sanity01' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'Sanity1' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 6 device_count, 408 dmc_id, 'TB_HT01' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 1 device_count, 408 dmc_id, 'TEST_1' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 5 device_count, 408 dmc_id, 'TK_ST001' firmware_version, '0000' cg_id, NULL image_prerequisite, 24028 count_within_dmcid FROM dual UNION ALL
SELECT 5 device_count, 3345 dmc_id, 'SU.B' firmware_version, '0000' cg_id, 'SU.A' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 6 device_count, 3345 dmc_id, 'SU.C' firmware_version, '0000' cg_id, 'SU.B' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 8 device_count, 3345 dmc_id, 'SU.D' firmware_version, '0000' cg_id, 'SU.C' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 8 device_count, 3345 dmc_id, 'SU.E' firmware_version, '0000' cg_id, 'SU.C' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 20 device_count, 3345 dmc_id, 'SU.F' firmware_version, '0000' cg_id, 'SU.D' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 20 device_count, 3345 dmc_id, 'SU.F' firmware_version, '0000' cg_id, 'SU.E' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 10 device_count, 3345 dmc_id, 'SU.G' firmware_version, '0000' cg_id, 'SU.F' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 11 device_count, 3345 dmc_id, 'SU.H' firmware_version, '0000' cg_id, 'SU.F' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 20 device_count, 3345 dmc_id, 'SU.I' firmware_version, '0000' cg_id, 'SU.G' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 20 device_count, 3345 dmc_id, 'SU.I' firmware_version, '0000' cg_id, 'SU.H' image_prerequisite, 93 count_within_dmcid FROM dual UNION ALL
SELECT 5 device_count, 3345 dmc_id, 'SU.A' firmware_version, '0000' cg_id, NULL image_prerequisite, 93 count_within_dmcid FROM dual),
t1 AS (SELECT device_count,
dmc_id,
CASE WHEN COUNT(image_prerequisite) OVER (PARTITION BY dmc_id, cg_id, image_prerequisite) > 1
THEN listagg(firmware_version, '~') WITHIN GROUP (ORDER BY firmware_version) OVER (PARTITION BY dmc_id, cg_id, image_prerequisite)
ELSE firmware_version
END firmware_version,
cg_id,
image_prerequisite,
count_within_dmcid
FROM dm_temp_summing_dvc_by_fw),
t2 AS (SELECT sum(device_count) device_count,
dmc_id,
firmware_version,
cg_id,
image_prerequisite,
count_within_dmcid
FROM t1
GROUP BY dmc_id,
firmware_version,
cg_id,
image_prerequisite,
count_within_dmcid),
t3 AS (SELECT t.*,
LEVEL lev,
sys_connect_by_path(firmware_version, '/') AS chain,
connect_by_root(firmware_version) root_fw,
row_number() OVER (PARTITION BY dmc_id, cg_id, firmware_version, connect_by_root(firmware_version) ORDER BY LEVEL DESC, sys_connect_by_path(firmware_version, '/')) rn
FROM t2 t
START WITH image_prerequisite IS NULL
CONNECT BY nocycle PRIOR regexp_substr(firmware_version, '[^~]*') = image_prerequisite
AND PRIOR dmc_id = dmc_id
AND PRIOR cg_id = cg_id)
SELECT chain,
root_fw,
firmware_version AS fw,
device_count AS cnt,
dmc_id,
cg_id,
lev,
count_within_dmcid,
rn,
SUM(device_count) over(PARTITION BY dmc_id, cg_id, root_fw ORDER BY lev DESC) AS cumm
FROM t3
ORDER BY dmc_id,
cg_id,
lev DESC;
给了我们：
CHAIN ROOT_FW FW CNT DMC_ID CG_ID LEV COUNT_WITHIN_DMCID RN CUMM
--------------------------------------------- ---------- --------------- ---------- ---------- ------ ---------- ------------------ ---------- ----------
/RT1/RT2/RT3/RT4 RT1 RT4 18 408 0000 4 24028 1 18
/RT1/RT2/RT3 RT1 RT3 24 408 0000 3 24028 1 42
/RT1/RT2 RT1 RT2 40 408 0000 2 24028 1 82
/SVP01 SVP01 SVP01 4 408 0000 1 24028 1 4
/RT1 RT1 RT1 2109 408 0000 1 24028 1 2191
/Sanity01 Sanity01 Sanity01 11 408 0000 1 24028 1 11
/Sanity1 Sanity1 Sanity1 1 408 0000 1 24028 1 1
/TB_HT01 TB_HT01 TB_HT01 6 408 0000 1 24028 1 6
/TEST_1 TEST_1 TEST_1 1 408 0000 1 24028 1 1
/TK_ST001 TK_ST001 TK_ST001 5 408 0000 1 24028 1 5
/RT1 RT1 RT1 1 408 HFOTA1 1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA2 1 2 1 1
/RT1 RT1 RT1 1 408 HFOTA3 1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA4 1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA5 1 2 1 1
/RT1/RT2 RT1 RT2 1 1422 0000 2 7 1 1
/RT1 RT1 RT1 1 1422 0000 1 7 1 2
/SU.A/SU.B/SU.C/SU.D~SU.E/SU.F/SU.G~SU.H/SU.I SU.A SU.I 20 3345 0000 7 93 1 20
/SU.A/SU.B/SU.C/SU.D~SU.E/SU.F/SU.G~SU.H SU.A SU.G~SU.H 21 3345 0000 6 93 1 41
/SU.A/SU.B/SU.C/SU.D~SU.E/SU.F SU.A SU.F 20 3345 0000 5 93 1 61
/SU.A/SU.B/SU.C/SU.D~SU.E SU.A SU.D~SU.E 16 3345 0000 4 93 1 77
/SU.A/SU.B/SU.C SU.A SU.C 6 3345 0000 3 93 1 83
/SU.A/SU.B SU.A SU.B 5 3345 0000 2 93 1 88
/SU.A SU.A SU.A 5 3345 0000 1 93 1 93
这个最新查询的作用是首先找出是否存在彼此处于同一级别的固件，如果是，我们将它们列在一起（这里，我使用~作为结果清晰的分隔符 - 没有什么可以阻止你使用与在sys_connect_by_path中使用相同的分隔符。
一旦我们有了，我们可以进行连接，但是我们只需要查看新计算的固件列中的第一个条目（否则我们不会在image_prerequisite列中找到匹配项）。然后它就像上一次查询一样计算结果。