我在表
中有以下输入数据+-----------+-------+-----------------+-----------------+------------------+-------------------+
device_count| dmc_id| firmware_version| charging_group_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 | 1422 |RT1 |0000000000000000 |null | 7 |
| 1 | 1422 |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 |
| 2 | 3345 |FW.D |0000000000000000 |FW.C | 24028 |
| 8 | 3345 |FW.E |0000000000000000 |FW.D | 24028 |
| 4 | 3345 |FW.F |0000000000000000 |FW.E | 24028 |
+-----------+-------+-----------------+-----------------+------------------+-------------------+
我正在使用以下查询来创建firmware_version链并查找累积计数。
WITH t1 AS
(SELECT device_count,
dmc_id,
CASE
WHEN COUNT(image_prerequisite) OVER (PARTITION BY dmc_id, charging_group_id, image_prerequisite) > 1
THEN
MIN(firmware_version)
--WITHIN GROUP (ORDER BY firmware_version)
OVER (PARTITION BY dmc_id, charging_group_id, image_prerequisite) || '+N'
ELSE firmware_version
END firmware_version,
charging_group_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,
charging_group_id,
image_prerequisite,
count_within_dmcid
FROM t1
GROUP BY dmc_id,
firmware_version,
charging_group_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, charging_group_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 charging_group_id = charging_group_id
)
SELECT chain,
root_fw,
firmware_version AS fw,
device_count AS cnt,
dmc_id,
charging_group_id,
count_within_dmcid,
SUM(device_count) over(PARTITION BY dmc_id, charging_group_id, root_fw ORDER BY lev DESC) AS cumm,
lev,
rn
FROM t3
ORDER BY dmc_id,
charging_group_id,
lev DESC;
结果查询返回：它没有返回firmware_versions FW.D，FW.E，FW.F的链，因为我们使用START WITH image_prerequisite IS NULL。 请建议一种方法，我们可以解决没有起点（图像先决条件）为NULL的固件链。
CHAIN ROOT_FW FW CNT DMC_ID CG_ID LEV COUNT_WITHIN_DMCID RN CUMM
--------------------------------------------- ---------- --------------- ---------- ---------- ---------------- ---------- ------------------ ---------- ----------
/RT1/RT2/RT3/RT4 RT1 RT4 18 408 0000000000000000 4 24028 1 18
/RT1/RT2/RT3 RT1 RT3 24 408 0000000000000000 3 24028 1 42
/RT1/RT2 RT1 RT2 40 408 0000000000000000 2 24028 1 82
/SVP01 SVP01 SVP01 4 408 0000000000000000 1 24028 1 4
/RT1 RT1 RT1 2109 408 0000000000000000 1 24028 1 2191
/Sanity01 Sanity01 Sanity01 11 408 0000000000000000 1 24028 1 11
/Sanity1 Sanity1 Sanity1 1 408 0000000000000000 1 24028 1 1
/TB_HT01 TB_HT01 TB_HT01 6 408 0000000000000000 1 24028 1 6
/TEST_1 TEST_1 TEST_1 1 408 0000000000000000 1 24028 1 1
/TK_ST001 TK_ST001 TK_ST001 5 408 0000000000000000 1 24028 1 5
/RT1 RT1 RT1 1 408 HFOTA-0000000041 1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA-0000000334 1 2 1 1
/RT1 RT1 RT1 1 408 HFOTA-0000000359 1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA-0000000441 1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA-0000001885 1 2 1 1
/RT1/RT2 RT1 RT2 1 1422 0000000000000000 2 7 1 1
/RT1 RT1 RT1 1 1422 0000000000000000 1 7 1 2
/SU.A/SU.B/SU.C/SU.D+N/SU.F/SU.G+N/SU.I SU.A SU.I 20 3345 0000000000000000 7 93 1 20
/SU.A/SU.B/SU.C/SU.D+N/SU.F/SU.G+N SU.A SU.G+N 21 3345 0000000000000000 6 93 1 41
/SU.A/SU.B/SU.C/SU.D+N/SU.F SU.A SU.F 20 3345 0000000000000000 5 93 1 61
/SU.A/SU.B/SU.C/SU.D+N SU.A SU.D+N 16 3345 0000000000000000 4 93 1 77
/SU.A/SU.B/SU.C SU.A SU.C 6 3345 0000000000000000 3 93 1 83
/SU.A/SU.B SU.A SU.B 5 3345 0000000000000000 2 93 1 88
/SU.A SU.A SU.A 5 3345 0000000000000000 1 93 1 93
预期产出：
CHAIN ROOT_FW FW CNT DMC_ID CG_ID LEV COUNT_WITHIN_DMCID RN CUMM
--------------------------------------------- ---------- --------------- ---------- ---------- ---------------- ---------- ------------------ ---------- ----------
/RT1/RT2/RT3/RT4 RT1 RT4 18 408 0000000000000000 4 24028 1 18
/RT1/RT2/RT3 RT1 RT3 24 408 0000000000000000 3 24028 1 42
/RT1/RT2 RT1 RT2 40 408 0000000000000000 2 24028 1 82
/SVP01 SVP01 SVP01 4 408 0000000000000000 1 24028 1 4
/RT1 RT1 RT1 2109 408 0000000000000000 1 24028 1 2191
/Sanity01 Sanity01 Sanity01 11 408 0000000000000000 1 24028 1 11
/Sanity1 Sanity1 Sanity1 1 408 0000000000000000 1 24028 1 1
/TB_HT01 TB_HT01 TB_HT01 6 408 0000000000000000 1 24028 1 6
/TEST_1 TEST_1 TEST_1 1 408 0000000000000000 1 24028 1 1
/TK_ST001 TK_ST001 TK_ST001 5 408 0000000000000000 1 24028 1 5
/RT1 RT1 RT1 1 408 HFOTA-0000000041 1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA-0000000334 1 2 1 1
/RT1 RT1 RT1 1 408 HFOTA-0000000359 1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA-0000000441 1 1 1 1
/RT1 RT1 RT1 1 408 HFOTA-0000001885 1 2 1 1
/RT1/RT2 RT1 RT2 1 1422 0000000000000000 2 7 1 1
/RT1 RT1 RT1 1 1422 0000000000000000 1 7 1 2
/SU.A/SU.B/SU.C/SU.D+N/SU.F/SU.G+N/SU.I SU.A SU.I 20 3345 0000000000000000 7 93 1 20
/SU.A/SU.B/SU.C/SU.D+N/SU.F/SU.G+N SU.A SU.G+N 21 3345 0000000000000000 6 93 1 41
/SU.A/SU.B/SU.C/SU.D+N/SU.F SU.A SU.F 20 3345 0000000000000000 5 93 1 61
/SU.A/SU.B/SU.C/SU.D+N SU.A SU.D+N 16 3345 0000000000000000 4 93 1 77
/SU.A/SU.B/SU.C SU.A SU.C 6 3345 0000000000000000 3 93 1 83
/SU.A/SU.B SU.A SU.B 5 3345 0000000000000000 2 93 1 88
/SU.A SU.A SU.A 5 3345 0000000000000000 1 93 1 93
/FW.D/FW.E/FW.F FW.D FW.F 4 3345 0000000000000000 3 93 1 4
/FW.D/FW.E FW.D FW.E 8 3345 0000000000000000 2 93 1 12
/FW.D FW.D FW.D 2 3345 0000000000000000 1 93 1 14
答案 0 :(得分：1)
正如我在评论中所写，如果你以这种方式修改if (Url.IsLocalUrl(returnUrl))
return Redirect(returnUrl);
else
return RedirectToAction("Index", "Home");
子句：
START WITH然后START WITH image_prerequisite IS NULL
OR image_prerequisite NOT IN (
SELECT firmware_version FROM dm_temp_summing_dvc_by_fw
)
将作为链的开头
此查询：http://sqlfiddle.com/#!4/e4e13/3
得出以下结果：
FWDWITH t1 AS
(SELECT device_count,
dmc_id,
CASE
WHEN COUNT(image_prerequisite) OVER (PARTITION BY dmc_id, charging_group_id, image_prerequisite) > 1
THEN
MIN(firmware_version)
--WITHIN GROUP (ORDER BY firmware_version)
OVER (PARTITION BY dmc_id, charging_group_id, image_prerequisite) || '+N'
ELSE firmware_version
END firmware_version,
charging_group_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,
charging_group_id,
image_prerequisite,
count_within_dmcid
FROM t1
GROUP BY dmc_id,
firmware_version,
charging_group_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, charging_group_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
OR image_prerequisite NOT IN (
SELECT firmware_version FROM dm_temp_summing_dvc_by_fw
)
CONNECT BY nocycle PRIOR regexp_substr(firmware_version, '[^+]*') = image_prerequisite
AND PRIOR dmc_id = dmc_id
AND PRIOR charging_group_id = charging_group_id
)
SELECT chain,
root_fw,
firmware_version AS fw,
device_count AS cnt,
dmc_id,
charging_group_id,
count_within_dmcid,
SUM(device_count) over(PARTITION BY dmc_id, charging_group_id, root_fw ORDER BY lev DESC) AS cumm,
lev,
rn
FROM t3
ORDER BY 1;
与预期输出的唯一差异是| CHAIN | ROOT_FW | FW | CNT | DMC_ID | CHARGING_GROUP_ID | COUNT_WITHIN_DMCID | CUMM | LEV | RN |
|-----------------------------------------|----------|----------|------|--------|-------------------|--------------------|------|-----|----|
| /FW.D | FW.D | FW.D | 2 | 3345 | 0000000000000000 | 24028 | 14 | 1 | 1 |
| /FW.D/FW.E | FW.D | FW.E | 8 | 3345 | 0000000000000000 | 24028 | 12 | 2 | 1 |
| /FW.D/FW.E/FW.F | FW.D | FW.F | 4 | 3345 | 0000000000000000 | 24028 | 4 | 3 | 1 |
| /RT1 | RT1 | RT1 | 2109 | 408 | 0000000000000000 | 24028 | 2191 | 1 | 1 |
| /RT1 | RT1 | RT1 | 1 | 1422 | 0000000000000000 | 7 | 2 | 1 | 1 |
| /RT1 | RT1 | RT1 | 1 | 408 | HFOTA-0000000041 | 1 | 1 | 1 | 1 |
| /RT1 | RT1 | RT1 | 1 | 408 | HFOTA-0000000334 | 2 | 1 | 1 | 1 |
| /RT1 | RT1 | RT1 | 1 | 408 | HFOTA-0000001885 | 2 | 1 | 1 | 1 |
| /RT1 | RT1 | RT1 | 1 | 408 | HFOTA-0000000441 | 1 | 1 | 1 | 1 |
| /RT1 | RT1 | RT1 | 1 | 408 | HFOTA-0000000359 | 1 | 1 | 1 | 1 |
| /RT1/RT2 | RT1 | RT2 | 1 | 1422 | 0000000000000000 | 7 | 1 | 2 | 1 |
| /RT1/RT2 | RT1 | RT2 | 40 | 408 | 0000000000000000 | 24028 | 82 | 2 | 1 |
| /RT1/RT2/RT3 | RT1 | RT3 | 24 | 408 | 0000000000000000 | 24028 | 42 | 3 | 1 |
| /RT1/RT2/RT3/RT4 | RT1 | RT4 | 18 | 408 | 0000000000000000 | 24028 | 18 | 4 | 1 |
| /SU.A | SU.A | SU.A | 5 | 3345 | 0000000000000000 | 93 | 93 | 1 | 1 |
| /SU.A/SU.B | SU.A | SU.B | 5 | 3345 | 0000000000000000 | 93 | 88 | 2 | 1 |
| /SU.A/SU.B/SU.C | SU.A | SU.C | 6 | 3345 | 0000000000000000 | 93 | 83 | 3 | 1 |
| /SU.A/SU.B/SU.C/SU.D+N | SU.A | SU.D+N | 16 | 3345 | 0000000000000000 | 93 | 77 | 4 | 1 |
| /SU.A/SU.B/SU.C/SU.D+N/SU.F | SU.A | SU.F | 20 | 3345 | 0000000000000000 | 93 | 61 | 5 | 1 |
| /SU.A/SU.B/SU.C/SU.D+N/SU.F/SU.G+N | SU.A | SU.G+N | 21 | 3345 | 0000000000000000 | 93 | 41 | 6 | 1 |
| /SU.A/SU.B/SU.C/SU.D+N/SU.F/SU.G+N/SU.I | SU.A | SU.I | 20 | 3345 | 0000000000000000 | 93 | 20 | 7 | 1 |
| /SVP01 | SVP01 | SVP01 | 4 | 408 | 0000000000000000 | 24028 | 4 | 1 | 1 |
| /Sanity01 | Sanity01 | Sanity01 | 11 | 408 | 0000000000000000 | 24028 | 11 | 1 | 1 |
| /Sanity1 | Sanity1 | Sanity1 | 1 | 408 | 0000000000000000 | 24028 | 1 | 1 | 1 |
| /TB_HT01 | TB_HT01 | TB_HT01 | 6 | 408 | 0000000000000000 | 24028 | 6 | 1 | 1 |
| /TEST_1 | TEST_1 | TEST_1 | 1 | 408 | 0000000000000000 | 24028 | 1 | 1 | 1 |
| /TK_ST001 | TK_ST001 | TK_ST001 | 5 | 408 | 0000000000000000 | 24028 | 5 | 1 | 1 |
列中的值，我真的不了解它们的计算方式。