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Calculate n number of months old date

 
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amandeep

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Joined: 05 Mar 2010
Posts: 2
Location: India

PostPosted: Fri Mar 05, 2010 4:55 pm    Post subject: Calculate n number of months old date
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Hi All,

I need to calculate 24 number of months old date from current gregorian /julian date. Can anybody help?
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sbprem1

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Joined: 05 Mar 2010
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Location: Chennai

PostPosted: Fri Mar 05, 2010 6:09 pm    Post subject: Reply to: Calculate n number of months old date
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Well, you can use DB2 built-in functions as follows:

SET :DATEHV = ADD_MONTHS('2000-2-28', 4);

SET :ADD_MONTH = ADD_MONTHS(:DATE,3);
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amandeep

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PostPosted: Fri Mar 05, 2010 6:12 pm    Post subject:
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Sorry I forgot to mention that I need this in cobol , I am not using DB2 icon_smile.gif
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Robert Sample

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Joined: 06 Jun 2008
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Location: Dubuque, Iowa, USA

PostPosted: Fri Mar 05, 2010 7:06 pm    Post subject:
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What, exactly, are you having trouble with? If you don't know how to do date calculations, you probably should go back to whoever taught you COBOL and ask for a refund since IF and SUBTRACT are both basic COBOL statements. So is getting the current date.
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Anuj Dhawan

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Joined: 22 Apr 2006
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Location: Mumbai, India

PostPosted: Fri Mar 05, 2010 9:20 pm    Post subject:
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To be honest, I just don't understand the question? What is being asked, after all?
Quote:
calculate 24 number of months old date from current gregorian /julian date
what does "24 number of months" mean? There are only 12 month sI know of! icon_neutral.gif
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Craq Giegerich

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Joined: 19 May 2007
Posts: 1512
Location: Virginia, USA

PostPosted: Fri Mar 05, 2010 9:22 pm    Post subject:
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What about partial months?
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enrico-sorichetti

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Joined: 14 Mar 2007
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Location: italy

PostPosted: Fri Mar 05, 2010 9:24 pm    Post subject: Reply to: Calculate n number of months old date
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OK i' ll bite!
why not simply subtract 2 from the years part
yyyymmdd - 24 months = yyyymmdd - 2 years
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