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UPDATE first n records only in place


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Melvyn Jacobs

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Joined: 05 Nov 2010
Posts: 7
Location: Australia

PostPosted: Fri Aug 10, 2012 8:39 am
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Hi

I want to use FileAid to change ONLY the 1st 3 records in a file on specified criteria, e.g. if I have

// a1-b2-c3
// z1-x1-b2-a1
// b2-a1
// xxxxxxxxxxxxxxxx-b2-a1

I want to change a1 to a9 & b2 to b9 anywhere on the JUST the first 3 lines, so I get

// a9-b9-c3
// z1-x1-b9-a9
// b9-a9
// xxxxxxxxxxxxxxxx-b2-a1

thx

MJ
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6250
Location: Mumbai, India

PostPosted: Fri Aug 10, 2012 11:13 am
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At the moment - I don't have File-Aid available to me, however, try this (untested):
Code:
//SYSIN DD *
$$DD01 UPDATE EA=(1,0,T"a1",C"a9"),
              EA=(1,0,T"b2",C"b9"),OUT=3
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6250
Location: Mumbai, India

PostPosted: Fri Aug 10, 2012 11:15 am
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OTOH, if you can use SORT (SyncSort or DFSort) -- FINDREP can be very handy for the question in this thread of yours.
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Melvyn Jacobs

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Joined: 05 Nov 2010
Posts: 7
Location: Australia

PostPosted: Wed Aug 15, 2012 8:36 am
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I did it in 2 steps, with a combination of OUT to change the 1st 3 records to 1 file, and DROP to drop the 1st 3 and copy the rest to another, and then recombined

Thx

MJ
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6250
Location: Mumbai, India

PostPosted: Wed Aug 15, 2012 2:51 pm
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That's another way of doing this.

Thanks for the follow up, glad you got it working! icon_smile.gif
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robert, galambos

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Joined: 24 Aug 2012
Posts: 5
Location: canada

PostPosted: Mon Aug 27, 2012 1:47 am
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this can be done by using the options panel within selection criteria and specifying the number of records you want to select.

you achieve the same results in both online or batch
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