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Checking Low/High values in the file.

 
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Mukesh Pandey

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Joined: 11 Nov 2008
Posts: 143
Location: India

PostPosted: Wed Jan 06, 2010 12:28 pm    Post subject: Checking Low/High values in the file.
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Hi All,

Can i have an optimized method for the task below. My copybook is very long..

File aid the input file using the copy book and see what comes as low values in the file - Do a hex on for low values/high values -Mention those fields in copybook that are normally blank or possibility of having high/low values
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Mukesh Pandey

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Joined: 11 Nov 2008
Posts: 143
Location: India

PostPosted: Wed Jan 06, 2010 12:35 pm    Post subject:
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Also need to know whether NULL and LOW values are same and difference if any. what is a high value?

X'04' corresponds to NULL or low values.
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10478
Location: italy

PostPosted: Wed Jan 06, 2010 1:15 pm    Post subject: Reply to: Checking Low/High values in the file.
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mild suggestion...
review Your understanding of the "null value" concept...
there is no such a a thing as a null value, every byte of eight bit is a value,
even 00
nullness is a convention to indicate that a value is not provided

to provide support for NULLNESS each data field must be composed of two parts...
NULL indicator ( tells if a value has been provided )
DATA value relevant only if NOT NULL
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Mukesh Pandey

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Joined: 11 Nov 2008
Posts: 143
Location: India

PostPosted: Wed Jan 06, 2010 2:23 pm    Post subject:
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clear that NULL is no value provided...

Can i know what are the HEXX values that i need to check for LOW/HIGH values.
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6258
Location: Mumbai, India

PostPosted: Wed Jan 06, 2010 2:39 pm    Post subject:
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LOW VALUES and HIGH VALUES
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