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Message Posted: Fri, 02 Jul 2004 @ 13:46:51 GMT


     
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Subj:   Re: Aiii, INTERVALs!
 
From:   Victor Sokovin

Donald,

  Consider the following SELECT,  


          SELECT  TIMESTAMP '2004-06-15 23:59:60.000000' A
                  ,TIMESTAMP '2004-06-16 00:00:00.000000' B
          WHERE   A = B;
  This statement returns 0 rows. Is this correct? For me, this presents a problem loading data from multiple source systems that send differently formatted timestamps.  



Doesn't it have to do with the fact that 61 second in a timestamp can sometimes be a valid value (used in astronomical corrections etc)?

SELECT TIMESTAMP '2004-06-15 23:59:61.000000' seems to be a valid timestamp.

Perhaps the database has to be careful about such astronomical corrections. I am not sure they are known in advance so the DB has to accept them. There should be a thread on this in the archives with a useful URL.


Victor



     
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