Question

我有两张桌子：SZRATND和SFRSTCR。

+--------------+-------------------+-------------+-------------------+-----------------------+---------------------+
| SZRATND_PIDM | SZRATND_TERM_CODE | SZRATND_CRN | SZRATND_RSTS_CODE | SZRATND_ATTENDING_IND | SZRATND_LAST_ATTEND |
+--------------+-------------------+-------------+-------------------+-----------------------+---------------------+
|       264185 |            201480 |       82223 | RE                | Y                     |                     |
|       264185 |            201710 |       10716 | RW                | N                     | 1/16/2017           |
|       264185 |            201710 |       10943 | RW                | S                     | 4/29/2017           |
|       264185 |            201710 |       10960 | RW                | S                     | 4/29/2017           |
|       264185 |            201710 |       11362 | RW                | S                     | 4/10/2017           |
|       264185 |            201580 |       80094 | RE                | Y                     |                     |
|       264185 |            201610 |       10439 | D2                | Y                     |                     |
|       264185 |            201680 |       80769 | RW                | Y                     |                     |
|       264185 |            201680 |       82184 | RW                | Y                     |                     |
|       264185 |            201680 |       82114 | RW                | Y                     |                     |
|       264185 |            201680 |       80806 | RW                | Y                     |                     |
+--------------+-------------------+-------------+-------------------+-----------------------+---------------------+



+--------------+-------------------+-------------+-------------------+-------------------+
| SFRSTCR_PIDM | SFRSTCR_TERM_CODE | SFRSTCR_CRN | SFRSTCR_RSTS_CODE | SFRSTCR_CREDIT_HR |
+--------------+-------------------+-------------+-------------------+-------------------+
|       264185 |            201480 |       82223 | RE                |                 1 |
|       264185 |            201580 |       80094 | RE                |                 1 |
|       264185 |            201610 |       10439 | D2                |                 0 |
|       264185 |            201680 |       80769 | RW                |                 3 |
|       264185 |            201680 |       80806 | RW                |                 3 |
|       264185 |            201680 |       82114 | RW                |                 3 |
|       264185 |            201680 |       82184 | RW                |                 3 |
|       264185 |            201710 |       10716 | RW                |                 3 |
|       264185 |            201710 |       10943 | RW                |                 3 |
|       264185 |            201710 |       10960 | RW                |                 3 |
|       264185 |            201710 |       11362 | RW                |                 3 |
+--------------+-------------------+-------------+-------------------+-------------------+

显示的数据是一个PIDM（人）对于SZRATND_ATTENDING_IND =＆＃39; Y＆＃39;
的行，我需要SFRSTCR_CREDIT_HR的SUM 两个表的PIDM，TERM_CODE，CRN和RSTS_CODE必须匹配。

我希望和实际的结果对于SZRATND_ATTENDING_IND =＆＃39; Y＆＃39;

+--------------+-------------------+----+-----------------+
|              | DESIRED RESULT    |    | ACTUAL RESULT   |  
+--------------+-------------------+----+-----------------+   
| SFRSTCR_PIDM | ATTENDING_HOURS   |    | ATTENDING_HOURS | 
| 264185       | 0                 |    | 14              |
+--------------+-------------------+----+-----------------+

代码：

SELECT DISTINCT  
F.SFRSTCR_PIDM,
REG.STUDENT_REG_HRS AS STUDENT_REG_HRS,
ATTENDING.ATT_HRS AS STUDENT_ATT_HRS

FROM SFRSTCR F 
JOIN (SELECT SFRSTCR_PIDM, SUM(SFRSTCR_CREDIT_HR) AS ATT_HRS
                    FROM SZRATND ATTEND 
                    JOIN SFRSTCR  ON SFRSTCR_PIDM = ATTEND.SZRATND_PIDM
                    WHERE ATTEND.SZRATND_TERM_CODE = SFRSTCR_TERM_CODE
                      AND ATTEND.SZRATND_RSTS_CODE = SFRSTCR_RSTS_CODE
                      AND ATTEND.SZRATND_CRN = SFRSTCR_CRN
                      AND ATTEND.SZRATND_ATTENDING_IND = 'Y'
                    GROUP BY SFRSTCR_PIDM) ATTENDING ON F.SFRSTCR_PIDM = ATTENDING.SFRSTCR_PIDM

JOIN (SELECT SF.SFRSTCR_PIDM, SUM(SF.SFRSTCR_CREDIT_HR) AS STUDENT_REG_HRS
FROM SFRSTCR SF 
WHERE SF.SFRSTCR_RSTS_CODE LIKE 'R%'
AND SF.SFRSTCR_TERM_CODE = '201710'
GROUP BY SF.SFRSTCR_PIDM)REG ON F.SFRSTCR_PIDM = REG.SFRSTCR_PIDM 

WHERE 
F.SFRSTCR_RSTS_CODE LIKE 'R%'
AND F.SFRSTCR_TERM_CODE = '201710'
AND F.SFRSTCR_PIDM ='264185'

我尝试了几件事，但似乎没有什么能给我正确的结果。

此代码用于拉取学生参加的小时数，但是当我添加GROUP BY子句时，它会使结果不正确。这是应该在＆＃34; ATTENDING加入中的代码。＆＃34;我有什么想法可以包含这个吗？

SELECT NVL(SUM(SFRSTCR_CREDIT_HR), 0) AS ATT_HRS
    FROM SFRSTCR 
    JOIN SZRATND ATTEND  ON SFRSTCR_PIDM = ATTEND.SZRATND_PIDM
               AND ATTEND.SZRATND_TERM_CODE = SFRSTCR_TERM_CODE
               AND ATTEND.SZRATND_ATTENDING_IND = 'Y'
               AND ATTEND.SZRATND_RSTS_CODE = SFRSTCR_RSTS_CODE
               AND ATTEND.SZRATND_CRN = SFRSTCR_CRN

    WHERE SFRSTCR_PIDM ='264185'
    AND SFRSTCR_TERM_CODE = '201710'
    AND SFRSTCR_RSTS_CODE LIKE 'R%'

最终更正的代码：

SELECT DISTINCT
SPRIDEN_ID AS "ID",
SPRIDEN_LAST_NAME AS "LAST_NAME",
SPRIDEN_FIRST_NAME AS "FIRST_NAME",
ROBUSDF_VALUE_24 AS "FallTNP_Eligibility",
ROBUSDF_VALUE_25 AS "SpringTNP_Eligibility",
ROBUSDF_VALUE_26 AS "SummerTNP_Eligibility",
F.SFRSTCR_TERM_CODE AS "ENROLLED_TERM",
REG.STUDENT_REG_HRS AS STUDENT_REG_HRS,
ATT.ATT_HRS AS STUDENT_ATT_HRS

--CASE WHEN REG.STUDENT_REG_HRS <> ATT.ATT_HRS THEN 'LOOK' END AS "LOOK"

FROM SFRSTCR F
JOIN SPRIDEN ON F.SFRSTCR_PIDM = SPRIDEN_PIDM
LEFT OUTER JOIN ROBUSDF ON SPRIDEN_PIDM = ROBUSDF_PIDM
                    AND ROBUSDF_VALUE_36 = 'Y'
                    AND ROBUSDF_AIDY_CODE = :AidYear.AidYear
LEFT JOIN( SELECT NVL( SUM(SFRSTCR_CREDIT_HR), 0) AS ATT_HRS, SFRSTCR_PIDM AS ATT_PIDM
    FROM SFRSTCR
    JOIN SZRATND ATTEND  ON SFRSTCR_PIDM = ATTEND.SZRATND_PIDM
           AND ATTEND.SZRATND_TERM_CODE = SFRSTCR_TERM_CODE
           AND ATTEND.SZRATND_ATTENDING_IND = 'Y'
           AND ATTEND.SZRATND_RSTS_CODE = SFRSTCR_RSTS_CODE
           AND ATTEND.SZRATND_CRN = SFRSTCR_CRN
    WHERE
    SFRSTCR_TERM_CODE IN (:Term.TermCode,:Term.TermCode + 9)
    AND SFRSTCR_RSTS_CODE LIKE 'R%'
    GROUP BY SFRSTCR_PIDM
    ) ATT ON F.SFRSTCR_PIDM = ATT.ATT_PIDM

JOIN (SELECT SF.SFRSTCR_PIDM, SUM(SF.SFRSTCR_CREDIT_HR) AS STUDENT_REG_HRS
    FROM SFRSTCR SF
    WHERE SF.SFRSTCR_RSTS_CODE LIKE 'R%'
    AND SF.SFRSTCR_TERM_CODE IN (:Term.TermCode,:Term.TermCode + 9)
    GROUP BY SF.SFRSTCR_PIDM)REG ON F.SFRSTCR_PIDM = REG.SFRSTCR_PIDM

WHERE
SPRIDEN_CHANGE_IND IS NULL
AND F.SFRSTCR_RSTS_CODE LIKE 'R%'
AND F.SFRSTCR_TERM_CODE IN (:Term.TermCode,:Term.TermCode + 9)
AND ROBUSDF_VALUE_36 = 'Y'
ORDER BY SPRIDEN_ID

Thorsten Kettner，你是最棒的！感谢您的耐心等待！

Answer 1

我必须承认我没有看你的查询。它看起来很复杂，而你似乎只想加入表格，然后获得每个attending_ind的credit_hr总和。那将是：

SZRATND_CRN

关于修改过的查询：

您的ON条款中似乎有SZRATND。{/ li>
您是外部加入SFRSTCR_CREDIT_HR，但不要在查询中的任何位置使用它。你也可以完全删除它。
您内心加入每位学生的总:REG_TERM和'201710'。这可能与您在主查询中使用的:REG_TERM不同。因此，如果SFRSTCR_CREDIT_HR没有匹配，则会关闭学生的记录。
您按264185|1进行分组。我不知道为什么。这为您提供了两个总和，一个用于264185|3，一个用于SFRSTCR_CREDIT_HR。而且您甚至不显示您显示总和的组（DISTINCT不在您的选择列表中）。
264185|1通常是编写错误查询的标志。它在这里做的一件事是：如果您找到264185|3的六个记录和264185|6的两个记录，那么您将获得264185|6和atexit.register（因为1 x 6 = 6和2 x 3 = 6）。在这种情况下，您将其中一行视为重复。对我来说似乎没有意义。

ORACLE SQL - 从具有另一个表中的条件的一个表中选择SUM

1 个答案: