which one advanage 01 level or77 for declare elementary data

veera · New User Joined: 24 Nov 2004 Posts: 21 Location: chennai

HELLO,
ANY ONE PLSE TELL ME
1. WHICH ONE IS ADVANTAGE FOR DECLARATION OF ELEMENTARYDATA ITEMS.

2. WHY U R DECLARE VAR CHAR IN 49 LEVEL ONLY.

jz1b0c · Posted: Mon Nov 29, 2004 3:11 am Post subject:

Veera,

reg level 77 & 01.
This has no diff in MVS COBOL, VS COBOL II.

Inearlier versions of cobol.

if you declare an elimentary data item at level 01

01 ws-rec pic x(01).
01 ws-rec2 pic x(02).

in memory
xyyyyyyyyyyyyyyyyyyyyy (here y is blank nothing is stored in that).
xyyyyyyyyyyyyyyyyyyyyy

where as if its at level 77
77 ws-rec pic x(01)
77 ws-rec 2 pic x(01)
in memory
XX

you can observe that memory is being saved.

however there is no diff in MVS Cobol or VS Cobol II

jz1b0c

veera · New User Joined: 24 Nov 2004 Posts: 21 Location: chennai

[quote="jz1b0c"][quote="veera"]HELLO,
2. WHY U R DECLARE VAR CHAR IN 49 LEVEL ONLY.[/quote]

I have ansered this earlier check db2 forum for this.

good day.[/quote]

hello,
i am not cleared WHY U R DECLARE VAR CHAR IN 49 LEVEL ONLY