Oracle：为什么我的 MW 在基础视图中的数据更改后失效为 NEEDS_COMPILE 状态
Oracle: why is my MW invalidated to NEEDS_COMPILE state after data change in underlying views
我们正在使用以下物化视图和底层视图来实现一些报告。实体化视图完全由我们的应用程序手动刷新（通过 DBMS_SNAPSHOT.REFRESH( '"OVERALL_WEEKLY"','C');）。在此调用之后，视图处于 FRESH 状态，但在对基础表执行任何 DML 操作之后，物化视图将获得 NEEDS_COMPILE 状态。
视图的查询如下。
未更新的表 EBR_CYCLE_TIME 和 EBR_AREA 变化非常频繁。因此，提交时刷新不是我们的目的。
有什么办法可以避免NEEDS_COMPILE状态吗？或者更好的是，是什么导致了 NEED_COMPILE 状态？
CREATE OR REPLACE FORCE VIEW "OTD_WEEKLY" AS
SELECT
otd.WEEK,
otd.SITE_ID,
otd.AREA_ID,
otd.OTD_METRIC AS CT_METRIC,
ROUND(100 * (SUM(otd.SUCCESS) / SUM(otd.CT_TOTAL_COUNT)), 2) AS OTD_VALUE
FROM
(SELECT
FC.MFL_FISCAL_YR_NUM * 100 + FC.MFL_FISCAL_WK_NUM AS WEEK,
r.BUSINESS_UNIT_ID AS PAL2_ID,
a.site_id AS SITE_ID,
a.area_def_id AS AREA_ID,
a.PRIORITY AS PRIORITY,
r.EBR_BUILD_SUBTYPE AS NPI,
r.CORPORATE_TD AS CTD,
ctd.NAME AS OTD_METRIC,
COUNT(r.ebr_number) AS CT_TOTAL_COUNT,
COUNT(
CASE
WHEN (ct.TIME_ELAPSED) > (ct.TARGET * 86400)
THEN NULL
ELSE r.ebr_number
END) AS SUCCESS,
COUNT(
CASE
WHEN (ct.TIME_ELAPSED) > (ct.TARGET * 86400)
THEN r.ebr_number
ELSE NULL
END) AS MISSED,
COUNT(DISTINCT r.ebr_number) AS TOTAL_NUMBER_OF_EBR
FROM ebr_cycle_time ct
JOIN ebr_area a
ON (a.id = ct.ebr_area_id
AND ct.status = 'FINISHED'
AND a.ship_date IS NOT NULL)
JOIN ebr_request r
ON (a.ebr_id = r.id AND r.submit_date >= to_date((select STRING_VALUE from EBR_STATUS_TABLE where key = 'REPORT_DATE_FROM'),'DD.MM.YY'))
JOIN EBR_GROUP_CYCLE_TIME_DEF gctd
ON (ct.CYCLE_TIME_GROUP_DEF = gctd.ID)
JOIN EBR_CYCLE_TIME_DEF ctd
ON (ctd.ID = gctd.CYCLE_TIME_DEF_ID
AND ctd.OTD_METRIC = 'Y')
JOIN EBR_CYCLE_TIME_GROUP ctg
ON (ctg.id = gctd.CYCLE_TIME_GROUP_ID)
JOIN EEBR_MC_LCL_FISCAL FC
ON (FC.MFL_QUERY_DT = TRUNC(a.ship_date) AND fc.MFL_QUERY_DT > add_months(trunc(sysdate, 'MM'), -8) AND fc.MFL_QUERY_DT <= sysdate)
GROUP BY
r.BUSINESS_UNIT_ID,
a.site_id,
a.area_def_id,
ctd.name,
fc.mfl_fiscal_yr_num,
fc.mfl_fiscal_wk_num,
ct.target,
a.PRIORITY,
r.CORPORATE_TD,
r.EBR_BUILD_SUBTYPE
) otd
GROUP BY
otd.WEEK,
otd.PAL2_ID,
otd.SITE_ID,
otd.AREA_ID,
otd.OTD_METRIC;
CREATE OR REPLACE FORCE VIEW "LAGGING_SCORE_WEEKLY" AS
SELECT
dsc.SITE_ID,
dsc.AREA_ID,
dsc.CT_METRIC,
(dsc.ARCHIVE_YEAR * 100 + dsc.ARCHIVE_WEEK) AS WEEK,
ROUND(AVG(SCORE), 4) AS SCORE
FROM
(SELECT
cts.site_id AS SITE_ID,
ls.AREA_DEF_ID AS AREA_ID,
ctd.name AS CT_METRIC,
ctd.id AS CT_ID,
fc.MFL_QUERY_DT AS ARCHIVE_DAY,
fc.MFL_FISCAL_WK_NUM AS ARCHIVE_WEEK,
fc.MFL_FISCAL_MTH_NUM AS ARCHIVE_MONTH,
fc.MFL_FISCAL_YR_NUM AS ARCHIVE_YEAR,
(fc.MFL_FISCAL_YR_NUM * 100 + fc.MFL_FISCAL_WK_NUM) AS WEEK,
CASE
WHEN SUM(cts.PENALTY) > 0
THEN SUM(cts.PENALTY)
ELSE 0
END AS EBR_PENALTY,
COUNT(DISTINCT cts.ebr_number) AS NUMBER_OF_EBR,
COUNT(DISTINCT (
CASE
WHEN cts.LAGGING_TIME > 0
THEN cts.ebr_number
ELSE NULL
END)) AS NUMBER_OF_LAGGING_EBR,
CASE
WHEN SUM(cts.PENALTY) > 0
THEN greatest(100 - 100 * (SUM(cts.PENALTY) / COUNT(DISTINCT cts.ebr_number)), 0)
ELSE 100
END AS SCORE
FROM EBR_CYCLE_TIME_SNAPSHOT cts
JOIN EBR_REQUEST r
ON (r.ebr_number = cts.ebr_number AND r.submit_date >= to_date((select STRING_VALUE from EBR_STATUS_TABLE where key = 'REPORT_DATE_FROM'),'DD.MM.YY'))
RIGHT JOIN EBR_LAGGING_STATISTIC ls
ON ((TRUNC(ls.stat_date) = TRUNC(cts.SNAPSHOT_TIME))
AND ls.site_id = cts.site_id
AND cts.AREA_DEF_ID = ls.AREA_DEF_ID
AND ls.CT_DEF_ID = cts.CYCLE_TIME_DEF_ID)
JOIN EBR_CYCLE_TIME_DEF ctd
ON (ls.CT_DEF_ID = ctd.id
AND ctd.OTD_METRIC = 'Y')
JOIN EEBR_MC_LCL_FISCAL fc
ON (TRUNC(ls.STAT_DATE) = TRUNC(fc.MFL_QUERY_DT) AND fc.MFL_QUERY_DT > add_months(trunc(sysdate, 'MM'), -8))
GROUP BY
cts.site_id,
ls.AREA_DEF_ID,
ctd.name,
ctd.id,
fc.MFL_QUERY_DT,
fc.MFL_FISCAL_WK_NUM,
fc.MFL_FISCAL_MTH_NUM,
fc.MFL_FISCAL_YR_NUM,
ls.NUMBER_OF_EBR,
ls.NUMBER_OF_LAGGING_EBR,
TRUNC(ls.STAT_DATE)
) dsc
GROUP BY dsc.SITE_ID,
dsc.AREA_ID,
dsc.CT_METRIC,
dsc.ARCHIVE_WEEK,
dsc.ARCHIVE_MONTH,
dsc.ARCHIVE_YEAR;
CREATE OR REPLACE FORCE VIEW "START_COMPLIANCE_WEEKLY" AS
SELECT
'Starts Compliance' AS CT_METRIC,
a.site_id AS SITE_ID,
a.area_def_id AS AREA_ID,
((lstw.MFL_FISCAL_YR_NUM * 100) + lstw.MFL_FISCAL_WK_NUM) AS WEEK,
ROUND(AVG(
CASE
WHEN ((ct.START_DATE IS NOT NULL
AND TRUNC((ct.START_DATE AT TIME ZONE 'MST') AT TIME ZONE s.time_zone) >
TRUNC((a.FIRST_FIRM_START_DATE AT TIME ZONE 'MST') AT TIME ZONE s.time_zone))
OR (ct.START_DATE IS NULL
AND next_day(TRUNC(sysdate) - 7, 'Sun') >
TRUNC((a.FIRST_FIRM_START_DATE AT TIME ZONE 'MST') AT TIME ZONE s.time_zone)))
THEN 0
ELSE 100
END), 2) AS SCORE
FROM ebr_area a
JOIN ebr_request r
ON (a.ebr_id = r.id AND a.FIRST_FIRM_START_DATE IS NOT NULL
AND a.FIRST_FIRM_START_DATE <= next_day(TRUNC(sysdate) - 7, 'Sun') AND AND r.status <> 'CANCELLED'
AND r.submit_date >= to_date((select STRING_VALUE from EBR_STATUS_TABLE where key = 'REPORT_DATE_FROM'),'DD.MM.YY'))
JOIN ebr_site s
ON (s.id = a.site_id)
LEFT JOIN
(SELECT
ct.START_DATE AS START_DATE,
ct.ROUND AS ROUND,
ct.ebr_area_id AS area_id
FROM ebr_cycle_time ct
JOIN EBR_GROUP_CYCLE_TIME_DEF gctd
ON (ct.CYCLE_TIME_GROUP_DEF = gctd.ID
AND ct.status <> 'NEW')
JOIN EBR_CYCLE_TIME_DEF ctd
ON (ctd.ID = gctd.CYCLE_TIME_DEF_ID
AND ctd.code = 'SITE_PROCESSING')
) ct ON (ct.area_id = a.id)
JOIN EEBR_MC_LCL_FISCAL lstw
ON (lstw.MFL_QUERY_DT = TRUNC(FIRST_FIRM_START_DATE) AND lstw.MFL_QUERY_DT > add_months(trunc(sysdate, 'MM'), -8))
GROUP BY
a.site_id,
s.time_zone,
a.area_def_id,
lstw.MFL_FISCAL_YR_NUM,
lstw.MFL_FISCAL_WK_NUM;
CREATE MATERIALIZED VIEW "OVERALL_WEEKLY"
AS SELECT s.code AS SITE_CODE,
s.name AS SITE_NAME,
reports.SITE_ID,
ad.NAME AS AREA,
ad.CODE AS AREA_CODE,
reports.AREA_ID,
reports.REPORT_TYPE,
reports.CT_METRIC,
reports.WEEK,
reports.SCORE
FROM (
(SELECT 'Starts Compliance' AS REPORT_TYPE,
AREA_ID,
SITE_ID,
CT_METRIC,
WEEK,
SCORE
FROM START_COMPLIANCE_WEEKLY
)
UNION
(SELECT 'OTD' AS REPORT_TYPE,
AREA_ID,
SITE_ID,
OTD_WEEKLY.CT_METRIC,
OTD_WEEKLY.WEEK,
OTD_WEEKLY.OTD_VALUE AS SCORE
FROM OTD_WEEKLY
)
UNION
(SELECT 'Lagging' AS REPORT_TYPE,
AREA_ID,
SITE_ID,
LAGGING_SCORE_WEEKLY.CT_METRIC,
LAGGING_SCORE_WEEKLY.WEEK,
LAGGING_SCORE_WEEKLY.SCORE
FROM LAGGING_SCORE_WEEKLY
)) reports
JOIN EBR_SITE s
ON (s.id = reports.SITE_ID)
JOIN EBR_AREA_DEF ad
ON (ad.id = reports.area_id);
这是预期的行为。 NEEDS_COMPILE 状态表示 MView 数据与源数据不同。它仅供参考。如果refresh on commit不适合你的使用，那么你可以忽略处于NEEDS_COMPILE状态的MViews。
参见 MOS 文档 ID 264036.1：
Dependencies related to MVs are automatically maintained to ensure
correct operation. When an MV is created, the materialized view
depends on the master tables referenced in its definition. Any DML
operation, such as an INSERT, or DELETE, UPDATE, or DDL operation on
any dependency in the materialized view will cause it to become
invalid.
我们正在使用以下物化视图和底层视图来实现一些报告。实体化视图完全由我们的应用程序手动刷新（通过 DBMS_SNAPSHOT.REFRESH( '"OVERALL_WEEKLY"','C');）。在此调用之后，视图处于 FRESH 状态，但在对基础表执行任何 DML 操作之后，物化视图将获得 NEEDS_COMPILE 状态。 视图的查询如下。 未更新的表 EBR_CYCLE_TIME 和 EBR_AREA 变化非常频繁。因此，提交时刷新不是我们的目的。
有什么办法可以避免NEEDS_COMPILE状态吗？或者更好的是，是什么导致了 NEED_COMPILE 状态？
CREATE OR REPLACE FORCE VIEW "OTD_WEEKLY" AS
SELECT
otd.WEEK,
otd.SITE_ID,
otd.AREA_ID,
otd.OTD_METRIC AS CT_METRIC,
ROUND(100 * (SUM(otd.SUCCESS) / SUM(otd.CT_TOTAL_COUNT)), 2) AS OTD_VALUE
FROM
(SELECT
FC.MFL_FISCAL_YR_NUM * 100 + FC.MFL_FISCAL_WK_NUM AS WEEK,
r.BUSINESS_UNIT_ID AS PAL2_ID,
a.site_id AS SITE_ID,
a.area_def_id AS AREA_ID,
a.PRIORITY AS PRIORITY,
r.EBR_BUILD_SUBTYPE AS NPI,
r.CORPORATE_TD AS CTD,
ctd.NAME AS OTD_METRIC,
COUNT(r.ebr_number) AS CT_TOTAL_COUNT,
COUNT(
CASE
WHEN (ct.TIME_ELAPSED) > (ct.TARGET * 86400)
THEN NULL
ELSE r.ebr_number
END) AS SUCCESS,
COUNT(
CASE
WHEN (ct.TIME_ELAPSED) > (ct.TARGET * 86400)
THEN r.ebr_number
ELSE NULL
END) AS MISSED,
COUNT(DISTINCT r.ebr_number) AS TOTAL_NUMBER_OF_EBR
FROM ebr_cycle_time ct
JOIN ebr_area a
ON (a.id = ct.ebr_area_id
AND ct.status = 'FINISHED'
AND a.ship_date IS NOT NULL)
JOIN ebr_request r
ON (a.ebr_id = r.id AND r.submit_date >= to_date((select STRING_VALUE from EBR_STATUS_TABLE where key = 'REPORT_DATE_FROM'),'DD.MM.YY'))
JOIN EBR_GROUP_CYCLE_TIME_DEF gctd
ON (ct.CYCLE_TIME_GROUP_DEF = gctd.ID)
JOIN EBR_CYCLE_TIME_DEF ctd
ON (ctd.ID = gctd.CYCLE_TIME_DEF_ID
AND ctd.OTD_METRIC = 'Y')
JOIN EBR_CYCLE_TIME_GROUP ctg
ON (ctg.id = gctd.CYCLE_TIME_GROUP_ID)
JOIN EEBR_MC_LCL_FISCAL FC
ON (FC.MFL_QUERY_DT = TRUNC(a.ship_date) AND fc.MFL_QUERY_DT > add_months(trunc(sysdate, 'MM'), -8) AND fc.MFL_QUERY_DT <= sysdate)
GROUP BY
r.BUSINESS_UNIT_ID,
a.site_id,
a.area_def_id,
ctd.name,
fc.mfl_fiscal_yr_num,
fc.mfl_fiscal_wk_num,
ct.target,
a.PRIORITY,
r.CORPORATE_TD,
r.EBR_BUILD_SUBTYPE
) otd
GROUP BY
otd.WEEK,
otd.PAL2_ID,
otd.SITE_ID,
otd.AREA_ID,
otd.OTD_METRIC;
CREATE OR REPLACE FORCE VIEW "LAGGING_SCORE_WEEKLY" AS
SELECT
dsc.SITE_ID,
dsc.AREA_ID,
dsc.CT_METRIC,
(dsc.ARCHIVE_YEAR * 100 + dsc.ARCHIVE_WEEK) AS WEEK,
ROUND(AVG(SCORE), 4) AS SCORE
FROM
(SELECT
cts.site_id AS SITE_ID,
ls.AREA_DEF_ID AS AREA_ID,
ctd.name AS CT_METRIC,
ctd.id AS CT_ID,
fc.MFL_QUERY_DT AS ARCHIVE_DAY,
fc.MFL_FISCAL_WK_NUM AS ARCHIVE_WEEK,
fc.MFL_FISCAL_MTH_NUM AS ARCHIVE_MONTH,
fc.MFL_FISCAL_YR_NUM AS ARCHIVE_YEAR,
(fc.MFL_FISCAL_YR_NUM * 100 + fc.MFL_FISCAL_WK_NUM) AS WEEK,
CASE
WHEN SUM(cts.PENALTY) > 0
THEN SUM(cts.PENALTY)
ELSE 0
END AS EBR_PENALTY,
COUNT(DISTINCT cts.ebr_number) AS NUMBER_OF_EBR,
COUNT(DISTINCT (
CASE
WHEN cts.LAGGING_TIME > 0
THEN cts.ebr_number
ELSE NULL
END)) AS NUMBER_OF_LAGGING_EBR,
CASE
WHEN SUM(cts.PENALTY) > 0
THEN greatest(100 - 100 * (SUM(cts.PENALTY) / COUNT(DISTINCT cts.ebr_number)), 0)
ELSE 100
END AS SCORE
FROM EBR_CYCLE_TIME_SNAPSHOT cts
JOIN EBR_REQUEST r
ON (r.ebr_number = cts.ebr_number AND r.submit_date >= to_date((select STRING_VALUE from EBR_STATUS_TABLE where key = 'REPORT_DATE_FROM'),'DD.MM.YY'))
RIGHT JOIN EBR_LAGGING_STATISTIC ls
ON ((TRUNC(ls.stat_date) = TRUNC(cts.SNAPSHOT_TIME))
AND ls.site_id = cts.site_id
AND cts.AREA_DEF_ID = ls.AREA_DEF_ID
AND ls.CT_DEF_ID = cts.CYCLE_TIME_DEF_ID)
JOIN EBR_CYCLE_TIME_DEF ctd
ON (ls.CT_DEF_ID = ctd.id
AND ctd.OTD_METRIC = 'Y')
JOIN EEBR_MC_LCL_FISCAL fc
ON (TRUNC(ls.STAT_DATE) = TRUNC(fc.MFL_QUERY_DT) AND fc.MFL_QUERY_DT > add_months(trunc(sysdate, 'MM'), -8))
GROUP BY
cts.site_id,
ls.AREA_DEF_ID,
ctd.name,
ctd.id,
fc.MFL_QUERY_DT,
fc.MFL_FISCAL_WK_NUM,
fc.MFL_FISCAL_MTH_NUM,
fc.MFL_FISCAL_YR_NUM,
ls.NUMBER_OF_EBR,
ls.NUMBER_OF_LAGGING_EBR,
TRUNC(ls.STAT_DATE)
) dsc
GROUP BY dsc.SITE_ID,
dsc.AREA_ID,
dsc.CT_METRIC,
dsc.ARCHIVE_WEEK,
dsc.ARCHIVE_MONTH,
dsc.ARCHIVE_YEAR;
CREATE OR REPLACE FORCE VIEW "START_COMPLIANCE_WEEKLY" AS
SELECT
'Starts Compliance' AS CT_METRIC,
a.site_id AS SITE_ID,
a.area_def_id AS AREA_ID,
((lstw.MFL_FISCAL_YR_NUM * 100) + lstw.MFL_FISCAL_WK_NUM) AS WEEK,
ROUND(AVG(
CASE
WHEN ((ct.START_DATE IS NOT NULL
AND TRUNC((ct.START_DATE AT TIME ZONE 'MST') AT TIME ZONE s.time_zone) >
TRUNC((a.FIRST_FIRM_START_DATE AT TIME ZONE 'MST') AT TIME ZONE s.time_zone))
OR (ct.START_DATE IS NULL
AND next_day(TRUNC(sysdate) - 7, 'Sun') >
TRUNC((a.FIRST_FIRM_START_DATE AT TIME ZONE 'MST') AT TIME ZONE s.time_zone)))
THEN 0
ELSE 100
END), 2) AS SCORE
FROM ebr_area a
JOIN ebr_request r
ON (a.ebr_id = r.id AND a.FIRST_FIRM_START_DATE IS NOT NULL
AND a.FIRST_FIRM_START_DATE <= next_day(TRUNC(sysdate) - 7, 'Sun') AND AND r.status <> 'CANCELLED'
AND r.submit_date >= to_date((select STRING_VALUE from EBR_STATUS_TABLE where key = 'REPORT_DATE_FROM'),'DD.MM.YY'))
JOIN ebr_site s
ON (s.id = a.site_id)
LEFT JOIN
(SELECT
ct.START_DATE AS START_DATE,
ct.ROUND AS ROUND,
ct.ebr_area_id AS area_id
FROM ebr_cycle_time ct
JOIN EBR_GROUP_CYCLE_TIME_DEF gctd
ON (ct.CYCLE_TIME_GROUP_DEF = gctd.ID
AND ct.status <> 'NEW')
JOIN EBR_CYCLE_TIME_DEF ctd
ON (ctd.ID = gctd.CYCLE_TIME_DEF_ID
AND ctd.code = 'SITE_PROCESSING')
) ct ON (ct.area_id = a.id)
JOIN EEBR_MC_LCL_FISCAL lstw
ON (lstw.MFL_QUERY_DT = TRUNC(FIRST_FIRM_START_DATE) AND lstw.MFL_QUERY_DT > add_months(trunc(sysdate, 'MM'), -8))
GROUP BY
a.site_id,
s.time_zone,
a.area_def_id,
lstw.MFL_FISCAL_YR_NUM,
lstw.MFL_FISCAL_WK_NUM;
CREATE MATERIALIZED VIEW "OVERALL_WEEKLY"
AS SELECT s.code AS SITE_CODE,
s.name AS SITE_NAME,
reports.SITE_ID,
ad.NAME AS AREA,
ad.CODE AS AREA_CODE,
reports.AREA_ID,
reports.REPORT_TYPE,
reports.CT_METRIC,
reports.WEEK,
reports.SCORE
FROM (
(SELECT 'Starts Compliance' AS REPORT_TYPE,
AREA_ID,
SITE_ID,
CT_METRIC,
WEEK,
SCORE
FROM START_COMPLIANCE_WEEKLY
)
UNION
(SELECT 'OTD' AS REPORT_TYPE,
AREA_ID,
SITE_ID,
OTD_WEEKLY.CT_METRIC,
OTD_WEEKLY.WEEK,
OTD_WEEKLY.OTD_VALUE AS SCORE
FROM OTD_WEEKLY
)
UNION
(SELECT 'Lagging' AS REPORT_TYPE,
AREA_ID,
SITE_ID,
LAGGING_SCORE_WEEKLY.CT_METRIC,
LAGGING_SCORE_WEEKLY.WEEK,
LAGGING_SCORE_WEEKLY.SCORE
FROM LAGGING_SCORE_WEEKLY
)) reports
JOIN EBR_SITE s
ON (s.id = reports.SITE_ID)
JOIN EBR_AREA_DEF ad
ON (ad.id = reports.area_id);
这是预期的行为。 NEEDS_COMPILE 状态表示 MView 数据与源数据不同。它仅供参考。如果refresh on commit不适合你的使用，那么你可以忽略处于NEEDS_COMPILE状态的MViews。
参见 MOS 文档 ID 264036.1：
Dependencies related to MVs are automatically maintained to ensure correct operation. When an MV is created, the materialized view depends on the master tables referenced in its definition. Any DML operation, such as an INSERT, or DELETE, UPDATE, or DDL operation on any dependency in the materialized view will cause it to become invalid.