ORA-01427 单行子查询返回多行 - 如何解决？

Posted 2023-05-08

【中文标题】ORA-01427 单行子查询返回多行 - 如何解决？

【英文标题】：ORA-01427 Single-Row Subquery Returns More than One Row - how to resolve?

【发布时间】：2020-01-23 01:32:26

【问题描述】：

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？我已经尝试将一些 = 运算符切换到 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

【问题讨论】：

我的猜测是您的基础数据最近发生了变化，导致其中一个子查询返回了多条记录。

谢谢蒂姆，这就是我的猜测。我不确定如何查明它是什么数据或哪个子查询。有什么建议吗？

尝试在没有子查询的情况下运行查询，然后将数据单独放入子查询中，查看它们是否返回单个或多个记录。

这是很多子查询。我会尽量不做那些。如果您使用联接，则更容易诊断问题。

【参考方案1】：

在 SQL 客户端中运行查询，将生成更详细的错误消息。例如，下面的代码在 SQL*Plus 中运行，它正确地表明问题出在第 3 行的子查询上。

SQL> select
  2     (select 1 from dual) this_will_work,
  3     (select 1 from dba_objects) this_will_fail,
  4     (select 1 from dual) this_will_work
  5  from dual;
   (select 1 from dba_objects) this_will_fail,
    *
ERROR at line 3:
ORA-01427: single-row subquery returns more than one row