Question

我是Oracle SQL的新手，想知道是否有人有任何关于如何执行以下操作的示例：

我想返回下面列出的以下SQL语句中存在的行数。这个SQL将成为更大的SQL语句的一部分，我将把EMPLID标识符传递给子查询。结果必须是一个值，显示与下面的SQL匹配的记录总数。 'xyz'最终将使用父SQL的引用传递员工的工作职位编号...即：jbe.POSITION_NBR
我的SQL：

从PS_JOB中选择cjbe.EMPLID cjbe
在哪里cjbe.POSITION_NBR ='xyz'
GROUP BY cjbe.EMPLID
我想知道如何将POSITION_NBR（我想我使用jbe.POSITION_NBR）的poarent值传递到我的子查询中，然后返回在该子查询中找到的EMPLID的总数。

感谢您的帮助。

原始父SQL在这里：

SELECT jbe.EMPLID "Employee_ID", REPLACE(nam.NAME,',',', ') "Name", jbe.HR_STATUS "HR_Status" , jbe.REG_TEMP "Reg/Temp" ,jbe.FULL_PART_TIME "FT/PT" ,jbe.SAL_ADMIN_PLAN "Emp_Type" ,jbe.DEPTID "Dept_ID" ,dpt.descr "Dept_Name" ,
(SELECT Min(pj.EFFDT) AS HIRE_DT_1
 FROM PS_JOB pj
 WHERE pj.EMPLID=jbe.emplid
     AND action IN('HIR',
                   'REH')
     AND pj.empl_rcd = 0) "Emp_Hired_Into_Pos_Dt" , jbe.POSITION_NBR "Position_Num" ,
(SELECT MIN(EFFDT)
 FROM PS_JOB
 WHERE 1=1
     AND POSITION_NBR = jbe.POSITION_NBR) "Position_Orig_Created_On" , pos.DESCR "Position_Job_Title" ,dist.ACCT_CD "Budget" ,dist.DIST_PCT "Distribution" ,
(SELECT COUNT(*)
 FROM
     (SELECT cjbe.EMPLID
      FROM PS_JOB cjbe
      WHERE cjbe.POSITION_NBR = jbe.POSITION_NBR
      GROUP BY cjbe.EMPLID)) "Qty_In_Position?"


FROM PS_JOB jbe,
 PS_NAMES nam,
 PS_JOB_EARNS_DIST dist,
 PS_POSITION_DATA pos,
 ps_dept_tbl dpt

WHERE (dist.EMPLID = jbe.EMPLID
   AND dist.EMPL_RCD = jbe.EMPL_RCD
   AND dist.EFFDT = jbe.EFFDT
   AND dist.EFFSEQ = jbe.EFFSEQ
   AND (jbe.EFFDT =
            (SELECT MAX(A_ED.EFFDT)
             FROM PS_JOB A_ED
             WHERE jbe.EMPLID = A_ED.EMPLID
                 AND jbe.EMPL_RCD = A_ED.EMPL_RCD
                 AND A_ED.EFFDT <= SYSDATE)
        AND jbe.EFFSEQ =
            (SELECT MAX(A_ES.EFFSEQ)
             FROM PS_JOB A_ES
             WHERE jbe.EMPLID = A_ES.EMPLID
                 AND jbe.EMPL_RCD = A_ES.EMPL_RCD
                 AND jbe.EFFDT = A_ES.EFFDT)
        AND jbe.EMPL_RCD = 0
        AND jbe.HR_STATUS = 'A'
        AND REGEXP_LIKE (SUBSTR(jbe.POSITION_NBR,1,2), '^S[0-9]')
        AND jbe.EMPLID = nam.EMPLID
        AND nam.EFFDT =
            (SELECT MAX(B_ED.EFFDT)
             FROM PS_NAMES B_ED
             WHERE nam.EMPLID = B_ED.EMPLID
                 AND nam.NAME_TYPE = B_ED.NAME_TYPE
                 AND B_ED.EFFDT <= SYSDATE)
        AND nam.NAME_TYPE = 'PRI'))

    AND pos.position_nbr(+) = jbe.position_nbr
AND pos.effdt=
    (SELECT max(p2.effdt)
     FROM ps_position_data p2
     WHERE p2.position_nbr=pos.position_nbr
         AND p2.effdt<=sysdate)
AND dpt.deptid(+) = jbe.deptid
AND dpt.setid(+) = jbe.setid_dept
AND (dpt.EFFDT=
         (SELECT MAX(d2.EFFDT)
          FROM PS_DEPT_TBL d2
          WHERE dpt.DEPTID=d2.DEPTID
              AND jbe.SETID_DEPT=d2.SETID
              AND d2.EFFDT<=SYSDATE))

    AND (
         (SELECT MIN(EFFDT)
          FROM PS_JOB
          WHERE 1=1
              AND POSITION_NBR = jbe.POSITION_NBR) BETWEEN TO_DATE ('01-JAN-2014', 'DD-MON-YYYY') AND TO_DATE ('31-DEC-2014', 'DD-MON-YYYY')
     OR
         (SELECT Min(pj.EFFDT) AS HIRE_DT_1
          FROM PS_JOB pj
          WHERE pj.EMPLID=jbe.emplid
              AND action IN('HIR',
                            'REH')
              AND pj.empl_rcd = 0) BETWEEN TO_DATE ('01-JAN-2014', 'DD-MON-YYYY') AND TO_DATE ('31-DEC-2014', 'DD-MON-YYYY'))
ORDER BY jbe.POSITION_NBR

Answer 1

问题在于您的父SQL：

(SELECT COUNT(*)
 FROM
     (SELECT cjbe.EMPLID
      FROM PS_JOB cjbe
      WHERE cjbe.POSITION_NBR = jbe.POSITION_NBR
      GROUP BY cjbe.EMPLID)) "Qty_In_Position?"

jbe.POSITION_NBR不可用，因为您位于第二个嵌套子查询中。它可以升级一级（在第一个子查询中，你有SELECT COUNT（*））。

父和子查询应如下所示：

SELECT jbe.EMPLID "Employee_ID", REPLACE(nam.NAME,',',', ') "Name", jbe.HR_STATUS "HR_Status" , jbe.REG_TEMP "Reg/Temp" ,jbe.FULL_PART_TIME "FT/PT" ,jbe.SAL_ADMIN_PLAN "Emp_Type" ,jbe.DEPTID "Dept_ID" ,dpt.descr "Dept_Name" ,
(SELECT Min(pj.EFFDT) AS HIRE_DT_1
 FROM PS_JOB pj
 WHERE pj.EMPLID=jbe.emplid
     AND action IN('HIR',
                   'REH')
     AND pj.empl_rcd = 0) "Emp_Hired_Into_Pos_Dt" , jbe.POSITION_NBR "Position_Num" ,
(SELECT MIN(EFFDT)
 FROM PS_JOB
 WHERE 1=1
     AND POSITION_NBR = jbe.POSITION_NBR) "Position_Orig_Created_On" , pos.DESCR "Position_Job_Title" ,dist.ACCT_CD "Budget" ,dist.DIST_PCT "Distribution" ,
(SELECT count(distinct cjbe.EMPLID)
          FROM PS_JOB cjbe
          WHERE cjbe.POSITION_NBR = jbe.POSITION_NBR) "Qty_In_Position?"
FROM PS_JOB jbe,
 PS_NAMES nam,
 PS_JOB_EARNS_DIST dist,
 PS_POSITION_DATA pos,
 ps_dept_tbl dpt

WHERE (dist.EMPLID = jbe.EMPLID
   AND dist.EMPL_RCD = jbe.EMPL_RCD
   AND dist.EFFDT = jbe.EFFDT
   AND dist.EFFSEQ = jbe.EFFSEQ
   AND (jbe.EFFDT =
            (SELECT MAX(A_ED.EFFDT)
             FROM PS_JOB A_ED
             WHERE jbe.EMPLID = A_ED.EMPLID
                 AND jbe.EMPL_RCD = A_ED.EMPL_RCD
                 AND A_ED.EFFDT <= SYSDATE)
        AND jbe.EFFSEQ =
            (SELECT MAX(A_ES.EFFSEQ)
             FROM PS_JOB A_ES
             WHERE jbe.EMPLID = A_ES.EMPLID
                 AND jbe.EMPL_RCD = A_ES.EMPL_RCD
                 AND jbe.EFFDT = A_ES.EFFDT)
        AND jbe.EMPL_RCD = 0
        AND jbe.HR_STATUS = 'A'
        AND REGEXP_LIKE (SUBSTR(jbe.POSITION_NBR,1,2), '^S[0-9]')
        AND jbe.EMPLID = nam.EMPLID
        AND nam.EFFDT =
            (SELECT MAX(B_ED.EFFDT)
             FROM PS_NAMES B_ED
             WHERE nam.EMPLID = B_ED.EMPLID
                 AND nam.NAME_TYPE = B_ED.NAME_TYPE
                 AND B_ED.EFFDT <= SYSDATE)
        AND nam.NAME_TYPE = 'PRI'))

    AND pos.position_nbr(+) = jbe.position_nbr
AND pos.effdt=
    (SELECT max(p2.effdt)
     FROM ps_position_data p2
     WHERE p2.position_nbr=pos.position_nbr
         AND p2.effdt<=sysdate)
AND dpt.deptid(+) = jbe.deptid
AND dpt.setid(+) = jbe.setid_dept
AND (dpt.EFFDT=
         (SELECT MAX(d2.EFFDT)
          FROM PS_DEPT_TBL d2
          WHERE dpt.DEPTID=d2.DEPTID
              AND jbe.SETID_DEPT=d2.SETID
              AND d2.EFFDT<=SYSDATE))

    AND (
         (SELECT MIN(EFFDT)
          FROM PS_JOB
          WHERE 1=1
              AND POSITION_NBR = jbe.POSITION_NBR) BETWEEN TO_DATE ('01-JAN-2014', 'DD-MON-YYYY') AND TO_DATE ('31-DEC-2014', 'DD-MON-YYYY')
     OR
         (SELECT Min(pj.EFFDT) AS HIRE_DT_1
          FROM PS_JOB pj
          WHERE pj.EMPLID=jbe.emplid
              AND action IN('HIR',
                            'REH')
              AND pj.empl_rcd = 0) BETWEEN TO_DATE ('01-JAN-2014', 'DD-MON-YYYY') AND TO_DATE ('31-DEC-2014', 'DD-MON-YYYY'))
ORDER BY jbe.POSITION_NBR

Answer 2

假设您将传入EMPLID和POSITION_NBR，您只需要： SELECT count（EMPLID）FROM PS_JOB cjbe 在哪里cjbe.POSITION_NBR ='xyz' AND cjbe.EMPLID = EMPLID（这是您传递给子查询的内容）
这是一个例子选择a.EMPLID，a.POSITION_NBR， - 这部分是你的子查询：（SELECT count（EMPLID）FROM PS_JOB cjbe 在哪里cjbe.POSITION_NBR = a.POSITION_NBR AND cjbe.EMPLID = a.EMPLID）count_of_emplid 来自

如何确定子查询中的记录数

2 个答案: