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MAINFRAME - TIP OF THE DAY : Q. If there is a situation, where we need to code more than 255 steps in a JOB? A. We need to split jcl into two jcls , at the end of the first jcl check the condition code and initiate the second jcl.

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query on sql

 
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bolastuff1975
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PostPosted: Mon Sep 24, 2007 7:23 pm    Post subject: query on sql Reply with quote

hi,

i have a char variable with length 6 bytes that contains time in the below format

1014AM
1014PM
..
..

i need to convert into the below foramt
10:14:00 if AM
20:14:00 if PM

Please, let me know if I can use any funtion here. i tried with SUM(INTEGER(SUBSTR(......) but not working.

Thanks
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DavidatK
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Location: Troy, MI USA

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PostPosted: Sat Sep 29, 2007 5:43 am    Post subject: Reply with quote

bolastuff1975,

Try this SQL

Code:

  DECLARE GLOBAL TEMPORARY TABLE TABLE1               
         (TIMEIN          CHAR(6)                     
         ,TIMEOUT         CHAR(8)                     
          )                                           
  ;                                                   
  INSERT INTO SESSION.TABLE1 (TIMEIN) VALUES('1014AM');
  INSERT INTO SESSION.TABLE1 (TIMEIN) VALUES('1014PM');
--;                                                                 
  SELECT *                                                         
    FROM SESSION.TABLE1                                             
  ;                                                                 
  UPDATE SESSION.TABLE1        T1                                   
     SET TIMEOUT =                                                 
         CASE                                                       
          WHEN SUBSTR(T1.TIMEIN,5,2) = 'AM'                         
           THEN SUBSTR(T1.TIMEIN,1,2) || ':' ||                     
                SUBSTR(T1.TIMEIN,3,2) || ':00'                     
          WHEN (SUBSTR(T1.TIMEIN,5,2) = 'PM')                       
           THEN SUBSTR(                                             
                DIGITS(CAST(SUBSTR(T1.TIMEIN,1,2) AS DEC(2)) + 12 )
                ,5,2) || ':' || SUBSTR(T1.TIMEIN,3,2) || ':00'     
         END                                                       
  ;                                                                 
--                                                                 
  SELECT *                       
    FROM SESSION.TABLE1         
  ;                             


Results of the two SELECT *

are before update
Code:

  +-------------------+
  | TIMEIN | TIMEOUT  |
  +-------------------+
1_| 1014AM | ?        |
2_| 1014PM | ?        |
  +-------------------+


and after update
Code:

  +-------------------+
  | TIMEIN | TIMEOUT  |
  +-------------------+
1_| 1014AM | 10:14:00 |
2_| 1014PM | 22:14:00 |
  +-------------------+


Dave
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DavidatK
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PostPosted: Wed Oct 03, 2007 8:21 pm    Post subject: Reply with quote

bolastuff1975,

Did you have any luck using this SQL?

dave
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bolastuff1975
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PostPosted: Thu Oct 04, 2007 1:49 pm    Post subject: Reply with quote

Hi Dave,

Thanks for the SQL.

Yes,it is running correctly on a sample but when i try to run with about 200000 records it bumps up that the datetime value is not correct.

I am not 100% sure of this bit is causing the problem or its due to some other case statements.

Thanks
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DavidatK
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PostPosted: Sat Oct 06, 2007 2:22 am    Post subject: Reply with quote

bolastuff1975,

If you don't come to a quick resolution, why not post the entire SQL so we can take a look at it. Give us something to think about Smile
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