Unable to fetch the records on TO DATE Oracle

问题

Database - Table

 PROD.APPLICATION 
Game ID    Generated Date

 1          Jan-01-1995
 2          Aug-19-2003
 3          Nov-04-2001
 4          Sep-26-2007
 5          Sep-26-2007
 6          Sep-26-2007
 7          Sep-19-2007
 8          Sep-19-2007
 9          Sep-19-2007
10          Jan-11-1985
11          MAY-19-2003
12          Sep-22-2007
13          Sep-22-2007

I ran the following query

SELECT *
FROM PROD.APPLICATION JOIN PROD.STATUS ON (PROD.STATUS_ID = REF_STATUS.STATUS_ID)  

AND PROD.APPLICATION.GENERETED_DT >= to_date('2007-09-19', 'yyyy-MM-dd') AND     
    PROD.APPLICATION.GENERETED_DT <= to_date('2007-09-26', 'yyyy-MM-dd');

to search for the records from Sep 19 2007 to Sep 26 2007 ie 8 records.

Which has resulted in showing the only records for Sep 19 2007 znd Sep 22 2007 ie only 5 records

Actual Output
Game ID    Generated Date
7 Sep-19-2007
8 Sep-19-2007
9 Sep-19-2007
12 Sep-22-2007
13 Sep-22-2007

How to generate the search query so that I could get all the 8 records - ie the records on those dates aswell

Expected Output

 4 Sep-26-2007
 5 Sep-26-2007
 6 Sep-26-2007
 7 Sep-19-2007
 8 Sep-19-2007
 9 Sep-19-2007
12 Sep-22-2007
13 Sep-22-2007

Tried

SELECT *
FROM PROD.APPLICATION JOIN PROD.STATUS ON (PROD.STATUS_ID = REF_STATUS.STATUS_ID)  

AND PROD.APPLICATION.GENERETED_DT >= to_date('2007-09-19', 'yyyy-MM-dd') AND     
    PROD.APPLICATION.GENERETED_DT = to_date('2007-09-26', 'yyyy-MM-dd');

Revived No records

回答1:

The date probably has a time component. This is part of the date data type in Oracle -- but is often not shown when you query.

A better approach uses the following logic:

SELECT *
FROM PROD.APPLICATION A JOIN
     PROD.STATUS S
     ON A.STATUS_ID = S.STATUS_ID  
WHERE A.GENERATED_DT >= DATE '2007-09-19' AND
      A.GENERATED_DT < DATE '2007-09-27';

Notes:

The < DATE '2007-09-27' will include all datetimes from the day before.
The DATE keyword introduces a date constants with the format YYYY-MM-DD.
Table aliases make the query easier to write and to read.
Moving the condition to the WHERE clause has no effect on the query, but such filtering is more commonly done in the WHERE clause for an INNER JOIN.

回答2:

This truncates the time part in APPLICATION.GENERETED_DT and then compares it to the date on the right side.


SELECT *
FROM PROD.APPLICATION JOIN PROD.STATUS ON (PROD.STATUS_ID = REF_STATUS.STATUS_ID)  
AND trunc(PROD.APPLICATION.GENERETED_DT) >= to_date('2007-09-19', 'yyyy-MM-dd') AND     
    trunc(PROD.APPLICATION.GENERETED_DT) <= to_date('2007-09-26', 'yyyy-MM-dd');

来源：https://stackoverflow.com/questions/60331445/unable-to-fetch-the-records-on-to-date-oracle

标签

sql

Oracle

date

datetime

plsql