我们使用以下物化视图和基础视图来实现一些报告 . 物化视图完全从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，实例化视图将获得NEEDS_COMPILE状态 . 对视图的查询如下 . 不确定的表EBR_CYCLE_TIME和EBR_AREA正在经常变化 . 因此，提交时刷新不是我们的目的 .

有没有办法避免NEEDS_COMPILE状态？或者更好的是导致NEED_COMPILE状态的原因？

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);