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More than 2 input files in Easytrieve

 
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rgupta71

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Joined: 21 Jun 2009
Posts: 160
Location: Indore

PostPosted: Wed Jul 15, 2009 10:28 am    Post subject: More than 2 input files in Easytrieve
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Hi, All

I am having a problem in merging my datasets to extract the complete information.

Input 1
U1 P1 N1
U1 P2 N2

Input 2
U1 P1 A1
U1 P2 A2


Input 3
U1 P1 S1
U2 P2 S2
U2 P3 S3

Output dataset
U1 P1 N1 A1 S1
U2 P2 N2 A2 S2

All the 3 input have LRECL=80

The Key to be used is U1 & P1
U1 is of 2 character & P1 is of 10 character
N1 & A1 are 50 character long & S1 is 2 character long.

Can I merge this in a single Easytrieve.

Thanks
Rahul Gupta
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Douglas Wilder

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Joined: 28 Nov 2006
Posts: 305
Location: Deerfield IL

PostPosted: Wed Jul 15, 2009 8:16 pm    Post subject:
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Yes, In the "JOB INPUT" specify all 3 files and both keys for each.
Remember to consider: Could any of the files have duplicate keys or missing keys and if so what result should it give.
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rgupta71

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Joined: 21 Jun 2009
Posts: 160
Location: Indore

PostPosted: Wed Jul 15, 2009 10:18 pm    Post subject:
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Douglas

Thanks for your response.

I am having another problem here that I don't know how to do this
"Remember to consider: Could any of the files have duplicate keys or missing keys and if so what result should it give."
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Douglas Wilder

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Joined: 28 Nov 2006
Posts: 305
Location: Deerfield IL

PostPosted: Wed Jul 15, 2009 10:41 pm    Post subject:
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First the answers to the questions need to be obtained:
Can File 1 have duplicate keys?
Can File 2 have duplicate keys?
Can File 3 have duplicate keys?
Can File 1 have missing keys (that are in File 2 and/or File 3)?
Can File 2 have missing keys (that are in File 1 and/or File 3)?
Can File 3 have missing keys (that are in File 1 and/or File 2)?

If there may be duplicates on 1 file put that file first.
If any of the Files may have missing keys, use "IF file-name" before using any field from that file so that you do not reference non-existent fields.

Try it and let us know you get stuck on anything.
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