Answer / nihar ranjan karan

I completely agree with Nikhil...
To add up a few more points which will be of help.....

Open up a dataset and put HEX ON , you will see the
following results assuming the variable occupies 4 bytes of
space:

low values 00000
00000

high values FFFF
FFFF

spaces 4444
0000

display item numbers FFFFFFFFFF
0123456789

characters A - Z will be of the following form:
C1-C9 will represent A-I,D1-D9 will represent J-R,E2-E9
will represent S-Z

comp-3 ...for example if number is positive 5893.
0083
059C

for negative last character will be D.

For comp it is converted into its hexadecimal equivalent.

Answer / jeena.mj

You cannot move LOW-VALUES or HIGH-VALUES to a "PIC 9"
field.

if we move low value and high values to alpha or
alphanumeric field the low value and high values are
x'0000' and x'FFFF'

Answer / nikhil

answer 2 is misleading. First of all you cannot use these
figurative constants for numeric variables.Second the first
answer gives the correct value. Please do not post anything
without confirming. Our aim is to provide correct answers.

Answer / jack

What to check for alphanumeric fields

Move spaces to low-values
Move 'zzzzzzzz' to high-values.

Answer / sejacoemor

I agree with Nikhil that our aim is to provide correct answers.

For Answer #4 (Nihar Ranjan Karan)

to compute for number of bytes for COMP-3:
count the total number of digits, divide it by 2 (disregard any fraction) then add 1. So, in the example if number is positive 5893.
it will be stored in 3 bytes only (not 4)
083
59C

---------------------------------------------

For Answer #5 (which actually a question from Prasenjit_in)

moving LOW-VALUES to a KEY-FIELD will point to 1st record while moving HIGH-VALUES to KEY-FIELD points to last record.

Answer / prasenjit_in

HI all related to high values i also faced a sort of similar
question....The question was if we move high values to a
record structure of a file and then read it what will the
o/p show.will it show the last record in the file.

Answer / necron

if the field is an alphabetic or alphanumeric you will have
spaces and if it is numeric you will have zeroes..(for low-
values)...i dont know abt high values! ;-)

How can we find out wether to declare the data items like Integer, Char,Comp? If comp types how can we decide wether it is Comp and Comp3.How it is? Please Explain... Cheers.

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