Oracle11g 格式化我的表Oracle SQL

我有一个包含以下列的表

select a.ssrmeet_crn
      ,a.ssrmeet_begin_time
      ,a.ssrmeet_end_time
      ,a.ssrmeet_start_date
      ,a.ssrmeet_end_date
      ,a.ssrmeet_sun_day
      ,a.ssrmeet_mon_day
      ,a.ssrmeet_tue_day
      ,a.ssrmeet_wed_day
      ,a.ssrmeet_thu_day
      ,a.ssrmeet_fri_day
      ,a.ssrmeet_sat_day
from   ssrmeet a
where  a.ssrmeet_term_code = 201730
and    a.ssrmeet_crn = 32789

一个类的一行是这样的

SSRMEET_CRN SSRMEET_BEGIN_TIME  SSRMEET_END_TIME    SSRMEET_START_DATE      SSRMEET_END_DATE        SSRMEET_SUN_DAY SSRMEET_MON_DAY SSRMEET_TUE_DAY SSRMEET_WED_DAY SSRMEET_THU_DAY SSRMEET_FRI_DAY SSRMEET_SAT_DAY
32789       1000                1050                1/8/2018 12:00:00 AM    5/4/2018 12:00:00 AM                    M                               W                               F   

CRN     START_DATE              END_DATE
32789   1/15/2018 10:00:00 AM   1/15/2018 10:50:00 AM
32789   1/22/2018 10:00:00 AM   1/22/2018 10:50:00 AM
32789   1/29/2018 10:00:00 AM   1/29/2018 10:50:00 AM
32789   2/05/2018 10:00:00 AM   2/05/2018 10:50:00 AM
32789   2/12/2018 10:00:00 AM   2/12/2018 10:50:00 AM
32789   2/19/2018 10:00:00 AM   2/19/2018 10:50:00 AM
32789   2/26/2018 10:00:00 AM   2/26/2018 10:50:00 AM
32789   3/05/2018 10:00:00 AM   3/05/2018 10:50:00 AM
32789   3/12/2018 10:00:00 AM   3/12/2018 10:50:00 AM
32789   3/19/2018 10:00:00 AM   3/19/2018 10:50:00 AM
32789   3/26/2018 10:00:00 AM   3/26/2018 10:50:00 AM
32789   4/02/2018 10:00:00 AM   4/02/2018 10:50:00 AM
32789   4/09/2018 10:00:00 AM   4/09/2018 10:50:00 AM
32789   3/16/2018 10:00:00 AM   3/16/2018 10:50:00 AM
32789   4/23/2018 10:00:00 AM   4/23/2018 10:50:00 AM
32789   4/30/2018 10:00:00 AM   4/30/2018 10:50:00 AM
32789   1/10/2018 10:00:00 AM   1/10/2018 10:50:00 AM
32789   1/17/2018 10:00:00 AM   1/17/2018 10:50:00 AM
32789   1/24/2018 10:00:00 AM   1/24/2018 10:50:00 AM
32789   1/31/2018 10:00:00 AM   1/31/2018 10:50:00 AM
32789   2/07/2018 10:00:00 AM   2/07/2018 10:50:00 AM
32789   2/14/2018 10:00:00 AM   2/14/2018 10:50:00 AM
32789   2/21/2018 10:00:00 AM   2/21/2018 10:50:00 AM
2789    2/28/2018 10:00:00 AM   2/28/2018 10:50:00 AM
32789   3/07/2018 10:00:00 AM   3/07/2018 10:50:00 AM
32789   3/14/2018 10:00:00 AM   3/14/2018 10:50:00 AM
32789   3/21/2018 10:00:00 AM   3/21/2018 10:50:00 AM
32789   3/28/2018 10:00:00 AM   3/28/2018 10:50:00 AM
32789   4/04/2018 10:00:00 AM   4/04/2018 10:50:00 AM
32789   4/11/2018 10:00:00 AM   4/11/2018 10:50:00 AM
32789   4/18/2018 10:00:00 AM   4/18/2018 10:50:00 AM
32789   4/25/2018 10:00:00 AM   4/25/2018 10:50:00 AM
32789   5/02/2018 10:00:00 AM   5/02/2018 10:50:00 AM
32789   1/12/2018 10:00:00 AM   1/12/2018 10:50:00 AM
32789   1/19/2018 10:00:00 AM   1/19/2018 10:50:00 AM
32789   1/26/2018 10:00:00 AM   1/26/2018 10:50:00 AM
32789   2/02/2018 10:00:00 AM   2/02/2018 10:50:00 AM
32789   2/09/2018 10:00:00 AM   2/09/2018 10:50:00 AM
32789   2/16/2018 10:00:00 AM   2/16/2018 10:50:00 AM
32789   2/23/2018 10:00:00 AM   2/23/2018 10:50:00 AM
32789   3/02/2018 10:00:00 AM   3/02/2018 10:50:00 AM
32789   3/09/2018 10:00:00 AM   3/09/2018 10:50:00 AM
32789   3/16/2018 10:00:00 AM   3/16/2018 10:50:00 AM
32789   3/23/2018 10:00:00 AM   3/23/2018 10:50:00 AM
32789   3/30/2018 10:00:00 AM   3/30/2018 10:50:00 AM
32789   4/06/2018 10:00:00 AM   4/06/2018 10:50:00 AM
32789   4/13/2018 10:00:00 AM   4/13/2018 10:50:00 AM
32789   4/20/2018 10:00:00 AM   4/20/2018 10:50:00 AM
32789   4/27/2018 10:00:00 AM   4/27/2018 10:50:00 AM
32789   5/04/2018 10:00:00 AM   5/04/2018 10:50:00 AM

我需要它列出每一个班级的会议，就像这样

SSRMEET_CRN SSRMEET_BEGIN_TIME  SSRMEET_END_TIME    SSRMEET_START_DATE      SSRMEET_END_DATE        SSRMEET_SUN_DAY SSRMEET_MON_DAY SSRMEET_TUE_DAY SSRMEET_WED_DAY SSRMEET_THU_DAY SSRMEET_FRI_DAY SSRMEET_SAT_DAY
32789       1000                1050                1/8/2018 12:00:00 AM    5/4/2018 12:00:00 AM                    M                               W                               F   

CRN     START_DATE              END_DATE
32789   1/15/2018 10:00:00 AM   1/15/2018 10:50:00 AM
32789   1/22/2018 10:00:00 AM   1/22/2018 10:50:00 AM
32789   1/29/2018 10:00:00 AM   1/29/2018 10:50:00 AM
32789   2/05/2018 10:00:00 AM   2/05/2018 10:50:00 AM
32789   2/12/2018 10:00:00 AM   2/12/2018 10:50:00 AM
32789   2/19/2018 10:00:00 AM   2/19/2018 10:50:00 AM
32789   2/26/2018 10:00:00 AM   2/26/2018 10:50:00 AM
32789   3/05/2018 10:00:00 AM   3/05/2018 10:50:00 AM
32789   3/12/2018 10:00:00 AM   3/12/2018 10:50:00 AM
32789   3/19/2018 10:00:00 AM   3/19/2018 10:50:00 AM
32789   3/26/2018 10:00:00 AM   3/26/2018 10:50:00 AM
32789   4/02/2018 10:00:00 AM   4/02/2018 10:50:00 AM
32789   4/09/2018 10:00:00 AM   4/09/2018 10:50:00 AM
32789   3/16/2018 10:00:00 AM   3/16/2018 10:50:00 AM
32789   4/23/2018 10:00:00 AM   4/23/2018 10:50:00 AM
32789   4/30/2018 10:00:00 AM   4/30/2018 10:50:00 AM
32789   1/10/2018 10:00:00 AM   1/10/2018 10:50:00 AM
32789   1/17/2018 10:00:00 AM   1/17/2018 10:50:00 AM
32789   1/24/2018 10:00:00 AM   1/24/2018 10:50:00 AM
32789   1/31/2018 10:00:00 AM   1/31/2018 10:50:00 AM
32789   2/07/2018 10:00:00 AM   2/07/2018 10:50:00 AM
32789   2/14/2018 10:00:00 AM   2/14/2018 10:50:00 AM
32789   2/21/2018 10:00:00 AM   2/21/2018 10:50:00 AM
2789    2/28/2018 10:00:00 AM   2/28/2018 10:50:00 AM
32789   3/07/2018 10:00:00 AM   3/07/2018 10:50:00 AM
32789   3/14/2018 10:00:00 AM   3/14/2018 10:50:00 AM
32789   3/21/2018 10:00:00 AM   3/21/2018 10:50:00 AM
32789   3/28/2018 10:00:00 AM   3/28/2018 10:50:00 AM
32789   4/04/2018 10:00:00 AM   4/04/2018 10:50:00 AM
32789   4/11/2018 10:00:00 AM   4/11/2018 10:50:00 AM
32789   4/18/2018 10:00:00 AM   4/18/2018 10:50:00 AM
32789   4/25/2018 10:00:00 AM   4/25/2018 10:50:00 AM
32789   5/02/2018 10:00:00 AM   5/02/2018 10:50:00 AM
32789   1/12/2018 10:00:00 AM   1/12/2018 10:50:00 AM
32789   1/19/2018 10:00:00 AM   1/19/2018 10:50:00 AM
32789   1/26/2018 10:00:00 AM   1/26/2018 10:50:00 AM
32789   2/02/2018 10:00:00 AM   2/02/2018 10:50:00 AM
32789   2/09/2018 10:00:00 AM   2/09/2018 10:50:00 AM
32789   2/16/2018 10:00:00 AM   2/16/2018 10:50:00 AM
32789   2/23/2018 10:00:00 AM   2/23/2018 10:50:00 AM
32789   3/02/2018 10:00:00 AM   3/02/2018 10:50:00 AM
32789   3/09/2018 10:00:00 AM   3/09/2018 10:50:00 AM
32789   3/16/2018 10:00:00 AM   3/16/2018 10:50:00 AM
32789   3/23/2018 10:00:00 AM   3/23/2018 10:50:00 AM
32789   3/30/2018 10:00:00 AM   3/30/2018 10:50:00 AM
32789   4/06/2018 10:00:00 AM   4/06/2018 10:50:00 AM
32789   4/13/2018 10:00:00 AM   4/13/2018 10:50:00 AM
32789   4/20/2018 10:00:00 AM   4/20/2018 10:50:00 AM
32789   4/27/2018 10:00:00 AM   4/27/2018 10:50:00 AM
32789   5/04/2018 10:00:00 AM   5/04/2018 10:50:00 AM

如果该类在当天开会，则day列仅具有指示符。周日“U”， 星期一'M'， 星期二“T”， 星期三“W”， 星期四R， 星期五‘F’， 星期六的

开始时间和结束时间为24小时格式

我已经尝试了两种不同的方法来尝试和解决，包括使用这个连接，但我被难住了

这就是我所能做到的。我可以用它生成第一个日期，但我不知道从这里到哪里去

with
data_prep as(
select 'U' dotw_code, 'Sunday' week_day from dual
union all
select 'M', 'Monday' from dual
union all
select 'T', 'Tuesday' from dual
union all
select 'W', 'Wednesday' from dual
union all
select 'R', 'Thursday' from dual
union all
select 'F', 'Friday' from dual
union all
select 'S', 'Saturday' from dual
)



select a.ssrmeet_crn crn
      ,case b.dotw_code
       when 'U'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_begin_time, 'MM/DD/YYYY HH24:MI:SS'),'SUN')
       when 'M'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_begin_time, 'MM/DD/YYYY HH24:MI:SS'),'MON')
       when 'T'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_begin_time, 'MM/DD/YYYY HH24:MI:SS'),'TUE')
       when 'W'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_begin_time, 'MM/DD/YYYY HH24:MI:SS'),'WED')
       when 'R'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_begin_time, 'MM/DD/YYYY HH24:MI:SS'),'THU')
       when 'F'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_begin_time, 'MM/DD/YYYY HH24:MI:SS'),'FRI')
       when 'S'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_begin_time, 'MM/DD/YYYY HH24:MI:SS'),'SAT')
       end start_date
      ,case b.dotw_code
       when 'U'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_end_time, 'MM/DD/YYYY HH24:MI:SS'),'SUN')
       when 'M'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_end_time, 'MM/DD/YYYY HH24:MI:SS'),'MON')
       when 'T'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_end_time, 'MM/DD/YYYY HH24:MI:SS'),'TUE')
       when 'W'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_end_time, 'MM/DD/YYYY HH24:MI:SS'),'WED')
       when 'R'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_end_time, 'MM/DD/YYYY HH24:MI:SS'),'THU')
       when 'F'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_end_time, 'MM/DD/YYYY HH24:MI:SS'),'FRI')
       when 'S'
       then
       next_day(to_date(to_char(ssrmeet_start_date, 'MM/DD/YYYY') || ' ' || ssrmeet_end_time, 'MM/DD/YYYY HH24:MI:SS'),'SAT')
       end end_date
from   ssrmeet a
       left join data_prep b
          on a.ssrmeet_sun_day = b.dotw_code
          or a.ssrmeet_mon_day = b.dotw_code
          or a.ssrmeet_tue_day = b.dotw_code
          or a.ssrmeet_wed_day = b.dotw_code
          or a.ssrmeet_thu_day = b.dotw_code
          or a.ssrmeet_fri_day = b.dotw_code
          or a.ssrmeet_sat_day = b.dotw_code
where  ssrmeet_term_code = 201730
and    ssrmeet_crn = 32789

---

如果有人能为我提供帮助，甚至给我指点如何在论坛上正确编排我的问题，我将不胜感激。

如果我理解正确，您希望有一份会议开始和结束日期之间的日期列表，那么我认为以下查询应该适合您：

WITH ssrmeet AS (SELECT 32789 ssrmeet_crn, 201730 ssrmeet_term_code, to_date('01/03/2017', 'dd/mm/yyyy') ssrmeet_start_date, to_date('01/04/2017', 'dd/mm/yyyy') ssrmeet_end_date, NULL sun_day, NULL mon_day, 'T' tue_day, 'W' wed_day, NULL thu_day, 'F' fri_day, 'S' sat_day FROM dual UNION ALL
                 SELECT 32790 ssrmeet_crn, 201730 ssrmeet_term_code, to_date('05/03/2017', 'dd/mm/yyyy') ssrmeet_start_date, to_date('27/03/2017', 'dd/mm/yyyy') ssrmeet_end_date, NULL sun_day, NULL mon_day, 'T' tue_day, 'W' wed_day, NULL thu_day, 'F' fri_day, 'S' sat_day FROM dual)
SELECT ssrmeet_crn,
       ssrmeet_start_date,
       ssrmeet_end_date,
       dt,
       to_char(dt, 'Dy', 'nls_date_language = english') dt_day,
       CASE WHEN (to_char(dt, 'Dy', 'nls_date_language = english') = 'Mon' AND mon_day = 'M')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Tue' AND tue_day = 'T')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Wed' AND wed_day = 'W')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Thu' AND thu_day = 'R')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Fri' AND fri_day = 'F')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Sat' AND sat_day = 'S')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Sun' AND sun_day = 'U')
                 THEN  dt
       END meet_dt
FROM   (SELECT ssrmeet_crn,
               ssrmeet_start_date,
               ssrmeet_end_date,
               ssrmeet_start_date - 1 + LEVEL dt,
               sun_day,
               mon_day,
               tue_day,
               wed_day,
               thu_day,
               fri_day,
               sat_day
        FROM   ssrmeet
        CONNECT BY ssrmeet_crn = PRIOR ssrmeet_crn
                   AND ssrmeet_term_code = PRIOR ssrmeet_term_code
                   AND PRIOR sys_guid() IS NOT NULL
                   AND LEVEL <= ssrmeet_end_date - ssrmeet_start_date + 1)
WHERE  CASE WHEN (to_char(dt, 'Dy', 'nls_date_language = english') = 'Mon' AND mon_day = 'M')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Tue' AND tue_day = 'T')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Wed' AND wed_day = 'W')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Thu' AND thu_day = 'R')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Fri' AND fri_day = 'F')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Sat' AND sat_day = 'S')
                 OR (to_char(dt, 'Dy', 'nls_date_language = english') = 'Sun' AND sun_day = 'U')
                 THEN  dt
       END IS NOT NULL
ORDER BY ssrmeet_crn,
         ssrmeet_start_date,
         dt;

SSRMEET_CRN SSRMEET_START_DATE SSRMEET_END_DATE DT          DT_DAY MEET_DT
----------- ------------------ ---------------- ----------- ------ -----------
      32789 01/03/2017         01/04/2017       01/03/2017  Wed    01/03/2017
      32789 01/03/2017         01/04/2017       03/03/2017  Fri    03/03/2017
      32789 01/03/2017         01/04/2017       04/03/2017  Sat    04/03/2017
      32789 01/03/2017         01/04/2017       07/03/2017  Tue    07/03/2017
      32789 01/03/2017         01/04/2017       08/03/2017  Wed    08/03/2017
      32789 01/03/2017         01/04/2017       10/03/2017  Fri    10/03/2017
      32789 01/03/2017         01/04/2017       11/03/2017  Sat    11/03/2017
      32789 01/03/2017         01/04/2017       14/03/2017  Tue    14/03/2017
      32789 01/03/2017         01/04/2017       15/03/2017  Wed    15/03/2017
      32789 01/03/2017         01/04/2017       17/03/2017  Fri    17/03/2017
      32789 01/03/2017         01/04/2017       18/03/2017  Sat    18/03/2017
      32789 01/03/2017         01/04/2017       21/03/2017  Tue    21/03/2017
      32789 01/03/2017         01/04/2017       22/03/2017  Wed    22/03/2017
      32789 01/03/2017         01/04/2017       24/03/2017  Fri    24/03/2017
      32789 01/03/2017         01/04/2017       25/03/2017  Sat    25/03/2017
      32789 01/03/2017         01/04/2017       28/03/2017  Tue    28/03/2017
      32789 01/03/2017         01/04/2017       29/03/2017  Wed    29/03/2017
      32789 01/03/2017         01/04/2017       31/03/2017  Fri    31/03/2017
      32789 01/03/2017         01/04/2017       01/04/2017  Sat    01/04/2017
      32790 05/03/2017         27/03/2017       07/03/2017  Tue    07/03/2017
      32790 05/03/2017         27/03/2017       08/03/2017  Wed    08/03/2017
      32790 05/03/2017         27/03/2017       10/03/2017  Fri    10/03/2017
      32790 05/03/2017         27/03/2017       11/03/2017  Sat    11/03/2017
      32790 05/03/2017         27/03/2017       14/03/2017  Tue    14/03/2017
      32790 05/03/2017         27/03/2017       15/03/2017  Wed    15/03/2017
      32790 05/03/2017         27/03/2017       17/03/2017  Fri    17/03/2017
      32790 05/03/2017         27/03/2017       18/03/2017  Sat    18/03/2017
      32790 05/03/2017         27/03/2017       21/03/2017  Tue    21/03/2017
      32790 05/03/2017         27/03/2017       22/03/2017  Wed    22/03/2017
      32790 05/03/2017         27/03/2017       24/03/2017  Fri    24/03/2017
      32790 05/03/2017         27/03/2017       25/03/2017  Sat    25/03/2017

其工作原理是首先执行分层查询，为开始日期和结束日期之间的每个日期生成一行，并添加1以将开始日期包含在结果中。如果有多行，这将为每行生成分层查询。如果希望一次只对一行执行此操作，则只需要connect by子句中的最后一行。前三行是为每行创建层次结构所必需的，而不是跨行集合。我假设ssrmete\u term\u代码，ssrmete\u crn是唯一的

一旦你有了这个列表，你就可以检查日期标志，看看这个日期是否是被标记的日期之一，如果不是，就不要输出它。注意：由于您没有提供任何示例数据或预期输出，我不得不猜测表内容和预期输出

---

如果您有机会更改设计，我会在day flag列中使用简单的Y/N或Y/null，而不是每个列都有自己的单独标志，即mon_flag=Y、tue_flag=Y等，而不是mon_flag='M'，tue_flag='T'，etc

如果您在SSRMETE表中添加一些示例数据以及希望看到的预期输出，这将非常有用。这非常有效！我添加了样本数据和预期输出，但你比我强。我必须对我的分层查询进行一些梳理。如果您不介意我问您如何将查询结果格式化为文本格式，请不要认为我以前都使用过sys\u guid？我使用Toad数据点作为IDE，它似乎没有结果到文本选项。这将有助于样本数据和预期结果。我不使用蟾蜍数据点，所以我不能说。然而，大多数IDE都有将数据导出到剪贴板或文件的方法。你必须用谷歌搜索如何使用TDP实现这一点。