我已经让这个查询运行了 2 年多，最近它开始抛出 ORA-01427 单行子查询返回多行错误。当有多个子查询时，最好的调试方法是什么？我应该为每个子查询添加一个 MAX 语句吗？我尝试将一些 = 运算符切换为 IN，但这不起作用，我也不相信它会给我正确的结果。
感谢这个社区可以提供的任何见解或帮助。我正在通过这个扯掉我的头发！
SELECT
NVL(
(SELECT
'Y'
FROM
PER_ASSIGNMENT_SUPERVISORS_F
WHERE
MANAGER_ID = PAPF.PERSON_ID
AND MANAGER_TYPE ='LINE_MANAGER'
AND TRUNC(SYSDATE) BETWEEN EFFECTIVE_START_DATE AND EFFECTIVE_END_DATE
AND ROWNUM = 1),'N') MANAGER_FLAG,
PAAM.ASSIGNMENT_STATUS_TYPE,
PAAM.EMPLOYMENT_CATEGORY,
TO_CHAR(PPOS.DATE_START,'YYYY-MM-DD') AS HIRE_DATE,
PER_EXTRACT_UTILITY.GET_STANDARD_WORKING_HOURS(PAAM.ASSIGNMENT_ID,TRUNC(SYSDATE)) AS STANDARD_WORKING_HOURS,
TO_CHAR(PAAM.EFFECTIVE_START_DATE,'YYYY-MM-DD') AS EFFECTIVE_START_DATE,
(
SELECT
PJFVL.JOB_CODE
FROM
PER_ALL_ASSIGNMENTS_M PAAM1,
PER_JOBS_F_VL PJFVL
WHERE
PAAM1.PERSON_ID = PASF.MANAGER_ID
AND TRUNC(SYSDATE) BETWEEN PAAM1.EFFECTIVE_START_DATE AND PAAM1.EFFECTIVE_END_DATE
AND TRUNC(SYSDATE) BETWEEN PJFVL.EFFECTIVE_START_DATE AND PJFVL.EFFECTIVE_END_DATE
and PAAM1.ASSIGNMENT_STATUS_TYPE='ACTIVE'
AND PAAM1.ASSIGNMENT_TYPE = 'E'
AND PAAM1.effective_latest_change = 'Y'
AND PJFVL.JOB_ID = PAAM1.JOB_ID
)as Manager_job_code,
(
SELECT
HOIF.ORG_INFORMATION1
FROM
PER_ALL_ASSIGNMENTS_M PAAM2,
HR_ORGANIZATION_INFORMATION_F HOIF
WHERE
PAAM2.PERSON_ID = PASF.MANAGER_ID
AND HOIF.ORG_INFORMATION_CONTEXT = 'DEPT_DET'
and PAAM2.ASSIGNMENT_STATUS_TYPE='ACTIVE'
AND PAAM2.ASSIGNMENT_TYPE = 'E'
AND PAAM2.effective_latest_change = 'Y'
AND TRUNC(SYSDATE) BETWEEN PAAM2.EFFECTIVE_START_DATE AND PAAM2.EFFECTIVE_END_DATE
AND TRUNC(SYSDATE) BETWEEN HOIF.EFFECTIVE_START_DATE AND HOIF.EFFECTIVE_END_DATE
AND HOIF.ORGANIZATION_ID = PAAM2.ORGANIZATION_ID
) as Manager_dep_code,
(SELECT
COUNT(PPOS.PERIOD_OF_SERVICE_ID)
FROM
PER_PERIODS_OF_SERVICE PPOS
WHERE
1 = 1
AND PAAM.PERSON_ID = PPOS.PERSON_ID
) AS INACTIVE_WORKRELATIONSHIP,
PAPF.PERSON_NUMBER as SAMACCOUNTNAME,
(SELECT CSB.NAME FROM
CMP_SALARY CS,
CMP_SALARY_BASES CSB
WHERE
CS.ASSIGNMENT_ID = PAAM.ASSIGNMENT_ID
AND CS.SALARY_BASIS_ID = CSB.SALARY_BASIS_ID
and TRUNC(SYSDATE) BETWEEN CS.DATE_FROM AND CS.DATE_TO
) AS hourly_salary_Paid,
TO_CHAR(PP.DATE_OF_BIRTH,'YYYY-MM-DD') AS DOB,
PPNFV.LAST_NAME,
PPNFV.FIRST_NAME,
HLA.LOCATION_NAME as Location,
HLA.ADDRESS_LINE_1 AS LOC_ADDRESS_1,
HLA.ADDRESS_LINE_2 AS LOC_ADDRESS_2,
HLA.TOWN_OR_CITY AS City,
HLA.POSTAL_CODE AS ZIP_CODE,
HLA.REGION_2 AS STATE,
PPNFV.KNOWN_AS AS PREFERRED_NAME,
TRIM((PPNFV.KNOWN_AS||' '||PPNFV.LAST_NAME)) AS PREFERRED_NAME_LAST_NAME,
(SELECT
PPNFV.DISPLAY_NAME
FROM per_person_names_f_v PPNFV
WHERE 1 = 1
AND PPNFV.PERSON_ID = PASF.MANAGER_ID
AND PPNFV.NAME_TYPE='GLOBAL'
AND TRUNC(SYSDATE) BETWEEN PPNFV.EFFECTIVE_START_DATE AND PPNFV.EFFECTIVE_END_DATE
) AS MANAGER_NAME,
(SELECT
PAPF.PERSON_NUMBER
FROM PER_ALL_PEOPLE_F PAPF
WHERE PAPF.PERSON_ID = PASF.MANAGER_ID
AND TRUNC(SYSDATE) BETWEEN PAPF.EFFECTIVE_START_DATE AND PAPF.EFFECTIVE_END_DATE
) AS MANAGER_NUMBER,
HAOUFVL.NAME AS DEPARTMENT,
PAAM.ASSIGNMENT_NAME AS JOB_TILE,
PLE.NAME as Company,
PJLG.INFORMATION1 AS FLSA,
SUBSTR(PNI.NATIONAL_IDENTIFIER_NUMBER,-4) AS SSN_NUMBER,
PAAM.ASS_ATTRIBUTE1 as Officer_TITLE,
(
select
bu.name
from
hr_all_organization_units_f_vl bu
where 1 = 1
and paam.business_unit_id = bu.organization_id
and trunc(sysdate) between bu.effective_start_date and bu.effective_end_date
) as BUS_UNIT,
TO_CHAR (PPOS.ORIGINAL_DATE_OF_HIRE,'YYYY-MM-DD') AS ORIGINAL_DATE_OF_HIRE1,
(
CASE WHEN PPLF.SEX = 'F' THEN
'TRUE'
ELSE
'FALSE'
END
) AS GENDER,
(
CASE WHEN PJFFVL.JOB_FAMILY_NAME = 'Executive' THEN
'ELT'
ELSE
' '
END
) AS ELT_DESIGNATION,
HOIF.ORG_INFORMATION1 as DEPATMENT_CODE,
PJFV.JOB_CODE AS JOB_CODE,
PAF.ADDRESS_LINE_1 AS HOME_ADDRESS_LINE_1,
PAF.ADDRESS_LINE_2 AS HOME_ADDRESS_LINE_2,
PAF.TOWN_OR_CITY AS HOW_ADDRESS_CITY,
PAF.REGION_2 AS HOME_ADDRESS_STATE,
PAF.POSTAL_CODE AS HOME_ADRESS_ZIP_CODE,
PGFTL.NAME as Grade_level,
(SELECT
distinct (per_extract_utility.get_decoded_lookup('JOB_FUNCTION_CODE',PJF.JOB_FUNCTION_CODE))
FROM
PER_JOB_SECURED_LIST_V job WHERE TRUNC(SYSDATE) BETWEEN effective_start_date AND effective_end_date
) as JOB_FUNCTION,
pp.attribute1 as PER_NETWORKID,
(SELECT
PPNFV.attribute1
FROM PER_PERSONS PPNFV
WHERE 1 = 1
AND PPNFV.PERSON_ID = PASF.MANAGER_ID
) AS MANAGER_NETWORKID,
HOIF.ORG_INFORMATION2 AS REGION,
to_char(paam.ass_attribute_date1,'MM/DD/YYYY') as OfficerPromoDate
FROM
PER_ALL_ASSIGNMENTS_M PAAM,
PER_ASSIGNMENT_SUPERVISORS_F PASF,
PER_PERIODS_OF_SERVICE PPOS,
PER_ALL_PEOPLE_F PAPF,
PER_PERSONS PP,
per_person_names_f_v PPNFV,
HR_LOCATIONS_ALL HLA,
HR_ALL_ORGANIZATION_UNITS_F_VL HAOUFVL,
PER_JOB_LEG_F PJLG,
PER_NATIONAL_IDENTIFIERS PNI,
PER_PEOPLE_LEGISLATIVE_F PPLF,
PER_JOB_FAMILY_F_VL PJFFVL,
PER_JOBS_F_V PJFV,
HR_ORGANIZATION_INFORMATION_F HOIF,
PER_ADDRESSES_F PAF,
PER_PERSON_ADDR_USAGES_F PPAUF,
PER_GRADES_F_TL PGFTL,
PER_JOBS_F PJF,
PER_LEGAL_EMPLOYERS PLE,
HR_ALL_ORGANIZATION_UNITS_F HAOUF
WHERE
PAAM.ASSIGNMENT_STATUS_TYPE='ACTIVE'
AND PAAM.ASSIGNMENT_TYPE = 'E'
AND PAAM.effective_latest_change = 'Y'
AND PAAM.ASSIGNMENT_ID = PASF.ASSIGNMENT_ID(+)
AND PASF.MANAGER_TYPE (+) = 'LINE_MANAGER'
AND PNI.PERSON_ID(+) = PAAM.PERSON_ID
AND PAAM.PERSON_ID = PPLF.PERSON_ID(+)
and PJFV.JOB_FAMILY_ID= PJFFVL.JOB_FAMILY_ID(+)
AND PJFV.JOB_ID(+) = PAAM.JOB_ID
AND HOIF.ORGANIZATION_ID(+)= PAAM.ORGANIZATION_ID
AND HOIF.ORG_INFORMATION_CONTEXT(+) = 'DEPT_DETAILS'
AND PPAUF.PERSON_ID(+)= PAPF.PERSON_ID
AND PPAUF.ADDRESS_TYPE (+) = 'HOME'
AND PPAUF.ADDRESS_ID= PAF.ADDRESS_ID(+)
AND PGFTL.GRADE_ID(+)= PAAM.GRADE_ID
AND PJF.JOB_ID(+)= PAAM.JOB_ID
AND PJLG.INFORMATION_CATEGORY='HRX_US_JOBS'
and HAOUF.ORGANIZATION_ID(+)=PLE.ORGANIZATION_ID
and PAAM.LEGAL_ENTITY_ID=PLE.ORGANIZATION_ID
AND TRUNC(SYSDATE) BETWEEN PAAM.EFFECTIVE_START_DATE(+) AND PAAM.EFFECTIVE_END_DATE (+)
AND PAAM.PERIOD_OF_SERVICE_ID = PPOS.PERIOD_OF_SERVICE_ID
AND PAPF.PERSON_ID = PAAM.PERSON_ID
AND PP.PERSON_ID = PAAM.PERSON_ID
AND PPNFV.PERSON_ID = PAAM.PERSON_ID
AND HLA.LOCATION_ID(+) = PAAM.LOCATION_ID
AND PJLG.JOB_ID(+) = PAAM.JOB_ID
AND HAOUFVL.ORGANIZATION_ID(+) = PAAM.ORGANIZATION_ID
AND PPNFV.NAME_TYPE = 'GLOBAL'
AND TRUNC(SYSDATE) BETWEEN PPNFV.EFFECTIVE_START_DATE AND PPNFV.EFFECTIVE_END_DATE
AND TRUNC(SYSDATE) BETWEEN PAPF.EFFECTIVE_START_DATE AND PAPF.EFFECTIVE_END_DATE
AND TRUNC(SYSDATE) BETWEEN HAOUFVL.EFFECTIVE_START_DATE(+) AND HAOUFVL.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PPLF.EFFECTIVE_START_DATE(+) AND PPLF.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PJFFVL.EFFECTIVE_START_DATE(+) AND PJFFVL.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PJFV.EFFECTIVE_START_DATE(+) AND PJFV.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN HOIF.EFFECTIVE_START_DATE(+) AND HOIF.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PAF.EFFECTIVE_START_DATE(+) AND PAF.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PPAUF.EFFECTIVE_START_DATE(+) AND PPAUF.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PGFTL.EFFECTIVE_START_DATE(+) AND PGFTL.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PJF.EFFECTIVE_START_DATE(+) AND PJF.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PLE.EFFECTIVE_START_DATE AND PLE.EFFECTIVE_END_DATE
AND TRUNC(SYSDATE) BETWEEN HAOUF.EFFECTIVE_START_DATE(+) AND HAOUF.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN HLA.EFFECTIVE_START_DATE(+) AND HLA.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PJLG.EFFECTIVE_START_DATE(+) AND PJLG.EFFECTIVE_END_DATE(+)
AND TRUNC(SYSDATE) BETWEEN PASF.EFFECTIVE_START_DATE(+) AND PASF.EFFECTIVE_END_DATE(+)
ORDER BY PAPF.PERSON_NUMBER