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[SORT]Comparing/Merging(Overlaying) 2 rows within same File

 
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pulsar

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Joined: 08 Nov 2007
Posts: 7
Location: India

PostPosted: Wed Apr 06, 2011 12:22 pm    Post subject: [SORT]Comparing/Merging(Overlaying) 2 rows within same File
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I have a single FB file of length 80 bytes.
File1:
Record Layout:
Key;StartDate;EndDate
Code:

AAA;2009-01-01;2009-12-31    <---row1
AAA;2008-01-01;2008-12-31    <---row2
AAA;2007-01-01;2007-12-31    <---row3
AAA;2005-09-08;2006-10-05    <---row4
BBB;2010-01-01;2011-01-31    <---row5

Expected Output:
Code:

AAA;2007-01-01;2009-12-31    <---combination of row1,3
AAA;2005-09-08;2006-10-05    <---row4
BBB;2010-01-01;2011-01-31    <---row5

The logic here is to see if the Key(first 3 bytes) is same, then check if the dates have continuity in them (i.e There is 'no gap' between Start date of row1 and end date of row2).
Will it be possible to use Sort - or will have to stick to COBOL to achieve the same. Please help.
(Sort Installed in Shop:Syncsort)
Thanks !
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10256
Location: italy

PostPosted: Wed Apr 06, 2011 12:25 pm    Post subject: Reply to: [SORT]Comparing/Merging(Overlaying) 2 rows within
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the other topic has been deleted!
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pulsar

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Joined: 08 Nov 2007
Posts: 7
Location: India

PostPosted: Wed Apr 06, 2011 12:29 pm    Post subject:
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Thanks enrico.
Have learnt the lesson !
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10256
Location: italy

PostPosted: Wed Apr 06, 2011 12:56 pm    Post subject: Reply to: [SORT]Comparing/Merging(Overlaying) 2 rows within
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not a problem! icon_biggrin.gif
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