Answer / saravanan s

See Meenakshi,It is depends on the Requirement,

So the Conclusion is

Take a look on the table

COMP COMP-3
(in bytes) (in bytes)

S9(01) 2 1
S9(02) 2 2
S9(03) 2 2
S9(04) 2 3
S9(05) 4 3
S9(06) 4 4
S9(07) 4 4
S9(08) 4 5
S9(09) 4 5
S9(10) 8 6
S9(11) 8 6
S9(12) 8 7
S9(13) 8 7
S9(14) 8 8

like that.........

Cheers,
Saravanan

Answer / ipl

comp-3

Answer / santy

COMP is better that COMP-3 in terms of memory utilization.

check out below examples.

COMP COMP-3
(in bytes) (in bytes)


S9(04) 2 3
S9(08) 4 5
S9(09) 4 5
S9(10) 8 6
S9(11) 8 6
S9(12) 8 7
S9(13) 8 7
S9(14) 8 8

hope it is useful.

Answer / ravi kiran

for lower boundaries comp is better , for higher boundaries
comp-3 is better.
in real time mostly comp3 is used

Answer / guest1

COMP values are stored as Binary format. So it is good to
use COMP.

Answer / i go crazy

COMP uses less memory compared to COMP-3 at word boundaries.
Ex: s9(04) COMP - 2 bytes.
s9(04) COMP-3 - 3 bytes.

consider the following piece of code 01 GROUP-ITEM 05 AMOUNT-1 PIC 99V9 USAGE COMP VALUE 50 05 AMOUNT-2 PIC 9(4)V99 USAGE COMP MOVE ZERO TO GROUP-ITEM ADD 50 TO AMOUNT-1 what will be the content of AMOUNT-1? a.50 b.100 c.0 d.unpredictable

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