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Difference b/w 77 and 01

 
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brahmanandareddy

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Joined: 16 Dec 2004
Posts: 44
Location: Hyderabad

PostPosted: Wed Dec 21, 2005 1:16 am    Post subject: Difference b/w 77 and 01
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What are the differences between 77 and 01 level numbers?
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iknow

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Joined: 22 Aug 2005
Posts: 413
Location: Colarado, US

PostPosted: Wed Dec 21, 2005 7:30 am    Post subject: Re: Difference b/w 77 and 01
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Hi Brahmananreddy,

Quote:
What are the differences between 77 and 01 level numbers?


Level 77 can be used to describe independent elementary items in the Working-Storage or Linkage Sections.
Level 01 can be used to describe both elementary and group items. Any item described in Level 01, the system is putting on Double-Word boundary and inserts slack bytes if necessary.

More points on 01 and 77 level numbers.

01 level
May be used to describe a single field or the start of a group of fields. Level 01 is the only level number that may be used to either begin a group or describe an independent field.

77 level
Reserved for individual elementary items that are not part of a group. In practice, a level 77 item is the same as a level 01 that describes an elementary item.

Hope this helps.
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