Question

I have two tables mentioned below  

   Table 1
Pk     Type       EVENTID    TimeStamp                                
1      Audio1          1     11-JAN-15 12.33.49.000000000 AM           
2      Video1          1     11-JAN-15 12.33.49.000000000 AM           
3      Audio2          2     11-JAN-15 12.35.50.000000000 AM           
4      Video2          2     11-JAN-15 12.35.50.000000000 AM           
5      Audio3          3     11-JAN-15 12.33.49.000000000 AM           
6      Video3          3     11-JAN-15 12.33.49.000000000 AM           
7      Audio4          4     12-JAN-15 12.40.50.000000000 AM           
8      Video4          4     12-JAN-15 12.40.50.000000000 AM     

Above is my first table.With audio and video files.    

My second table is     
 Table 2
    Pk    EVENTID      TimeStamp                              Date   
    1        1        11-JAN-15 12.33.49.000000000 AM          11-JAN-15 
    2        2        11-JAN-15 12.33.49.000000000 AM          11-JAN-15
    3        3        11-JAN-15 12.35.50.000000000 AM          11-JAN-15
    4        4        12-JAN-15 12.35.50.000000000 AM          12-JAN-15      


I am looking for an output mentioned in the table below.    


Table 3
    Type        Type      EventId           TimeStamp                                Date
    Audio1     Video1      1            11-JAN-15 12.33.49.000000000 AM           11-JAN-15
    Audio2     Video2      2            11-JAN-15 12.33.50.000000000 AM           11-JAN-15
    Audio3     Video3      3            11-JAN-15 12.35.50.000000000 AM           11-JAN-15
    Audio4     Video4      4            11-JAN-15 12.40.50.000000000 AM           12-JAN-15

两个表之间的EventID是唯一的。我想根据表2中的日期得到结果，即Date2和Date2之间的Table2.Date以及Day，Week和Month.Is有任何可能得到这个结果。如果有任何请帮助我。

Thanks 
Shyam

Answer 1

仔细检查后，您的查询比看起来更简单，因为TimeStamp列对于给定EVENTID的音频和视频记录是相同的。因此，您真正需要做的就是JOIN将两个表格WHERE限制在一起并添加新的Type列。

SELECT t1.Type AS Type, CONCAT('Video', t1.EVENTID) AS Type, t1.EVENTID AS EventId,
    t1.TimeStamp AS TimeStamp, t2.Date AS Date
FROM Table1 t1 INNER JOIN Table2 t2
ON t1.Pk = t2.Pk
WHERE SUBSTRING(t1.Type, 1, 5) = 'Audio' AND
    t2.Date >= '2015-01-11' AND t2.Date <= '2015-01-12'

Oracle Sql合并表具有多个where子句和日期之间以及Day day month

1 个答案: