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Cobol SQL and read-in timestamp

 
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cappertan
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Joined: 20 May 2003
Posts: 15
Topics: 10
PostPosted: Wed Sep 08, 2004 3:34 pm    Post subject: Cobol SQL and read-in timestamp Reply with quote
I have code that is giving me a Declare error, however, it does compile.

select *
FROM PAT_ENC
WHERE CAST (UPDATE_DATE AS DATE) >= CONTACT_DATE
AND CAST (:WSZZ-PARM-DATE AS TIMESTAMP)
< UPDATE_DATE

Parm-date comes from a file in which the date is in timestamp format.
Update_date is in timestamp format.

I did try a SUBSTR, as Koluso suggested, but that did not compile.

The runtime message I am getting is: invalid timestamp.

Any suggestions? Question
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kolusu
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Joined: 26 Nov 2002
Posts: 12369
Topics: 75
Location: San Jose
PostPosted: Wed Sep 08, 2004 5:22 pm    Post subject: Reply with quote
Cappertan,


Quote:

Update_date is in timestamp format.


If your column is of timestamp format, then you can use simply use DATE function to get the date portion from the timestamp. A timestamp is a seven-part value (year, month, day, hour, minute, second, and microsecond) ie.CCYY-MM-DD-HH.MI.SS.NNNNNN ) The length of a TIMESTAMP column is 26 bytes.

So DATE(UPDATE_DATE) would just give the date.

Quote:

Parm-date comes from a file in which the date is in timestamp format.


If you are reading from a file, then why not take the first 10 bytes using reference modification or define the fields in such a way that you get only the date portion.

Code:

01 W-PARM-REC.
   05 WSZZ-PARM-DATE       PIC X(10).
   05 FILLER               PIC X(01).
   05 WSZZ-PARM-TIME       PIC X(08).   
   05 FILLER               PIC X(01).
   05 WSZZ-MC-SEC          PIC X(06).
   05 FILLER               PIC X(64).


In the procedure divison.

Code:

  READ PARM-FILE INTO W-PARM-REC.


Now WSZZ-PARM-DATE will just contain the date.

Now your sql should be as follows.


Code:

 SELECT *
   FROM PAT_ENC
   WHERE DATE(UPDATE_DATE) >= CONTACT_DATE
     AND DATE(UPDATE_DATE) <  :WSZZ-PARM-DATE


Hope this helps...

Cheers

Kolusu
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