有沒有顯示所需結果的Oracle查詢，即按日期desc排序

Question

用於從表中選擇數據的Oracle查詢，但未顯示日期降序。

WITH cte AS
(
  SELECT DISTINCT cmoa.adate,
         subject,
         TYPE,
         to_char(cmoa.adate, 'DD/MM/YYYY') awarddate,
         (SELECT name
          FROM dopprod.cm_awards
          WHERE cm_awardsid = cmoa.awards) AS awardname
  FROM dopprod.cm_emp_master m
    INNER JOIN dopprod.cm_officer_awards cmoa ON m.cm_emp_masterid = cmoa.name
  WHERE m.cm_emp_masterid = '" + empcode + "'
)
SELECT row_number() OVER (ORDER BY awarddate) AS sno,
       subject,
       TYPE,
       awarddate,
       awardname
FROM dopprod.cte
ORDER BY sno

Answer 1

如果您不這樣說，為什么它會以降序顯示日期？ 不是嗎

order by cmoa.adate DESC           --> your code is missing DESC

Answer 2

請嘗試以下操作-您需要按以下順序指定desc

WITH cte
         AS (SELECT DISTINCT cmoa.adate,
                             subject,
                             TYPE,
                             TO_CHAR (cmoa.adate, 'DD/MM/YYYY') AwardDate,
                             (SELECT Name
                                FROM dopprod.cm_awards
                               WHERE cm_awardsid = cmoa.awards)
                                AS awardname
               FROM dopprod.CM_EMP_MASTER m
                    INNER JOIN dopprod.cm_officer_awards cmoa
                       ON m.cm_emp_masterid = cmoa.name
              WHERE m.CM_EMP_MASTERID = 'someid')
      SELECT ROW_NUMBER () OVER (ORDER BY cmoa.adate DESC) AS sno,
             subject,
             TYPE,
             AwardDate,
             awardname
        FROM dopprod.cte
    ORDER BY cmoa.adate desc

Answer 3

為什么不這樣做呢？

SELECT rownum AS sno,
       subject, TYPE, awarddate, awardname
FROM dopprod.cte
ORDER BY adate DESC

如果要按日期值排序，則需要按日期 order by包括日期列，而不是字符串列。