Strange NUMC, Can anyone please Define NUMC.

Question

Hi Experts,
I have experienced a Strange things with NUMC.
How ever you define your Numc (straight or dictionary ref like "DATA: value1 TYPE pa0000-pernr) or what ever.
I have seen different results different scenarios as shown in below example.
REPORT  znumc_test.
DATA : value1 TYPE n LENGTH 6.
DATA : value2(15) TYPE n.
DATA : value3 TYPE numc10.
DATA : ltext(40) TYPE c VALUE '0##010,SHOCKING-RIGHT,02 000'.
WRITE:/ 'Test1'.
WRITE:/ value1, value2, value3.
SPLIT   ltext   AT ',' INTO value1 value2 value3.
WRITE:/ value1, value2, value3.
CLEAR : value1, value2, value3.
WRITE:/ value1, value2, value3.
MOVE 'Can it be done?' TO value2.
WRITE:/ value2.
CONCATENATE 'It' 'Can' 'be' 'done.' INTO value2 SEPARATED BY space.
WRITE:/ value2.
value1 = value3 = value2.
WRITE:/ value1, value2, value3.
SPLIT 'Is This Possible?' at space INTO value1 value2 value3.
WRITE:/ value1, value2, value3.
I encounter this behavior when I was uploading my CSV file using split.
Can anyone please Define NUMC exactly for me.
Output of above in my system is show below
Test1
000000 000000000000000 0000000000
0##010 SHOCKING-RIGHT  02 000
000000 000000000000000 0000000000
000000000000000
It Can be done.
done. It Can be done. n be done.
Is     This            Possible?
Thanks & Regards,
Dileep .C

Answer 1

Hi Suhas,
Thanks for your information. I did went to through F1 before posting here. But I am not impressed with explanation.
I think I might missing something, Thats why I was looking for some valuable answers from experts here.
Properties
Type = n
Length = 1 to 262,143 characters
Standard Length = 1 characters
Name = Numeric text field
Numeric text
Character string consisting only of the digits 0 through 9. Valid content of a numeric text field.
Value Ranges and Initial Values
Type = n
Value Range = Any alphanumeric characters; only valid values are the digits 0 to 9, however
Initial Value = "0" for every position
Can you explain difference in below,
DATA : value(20) TYPE n.
MOVE 'Can it be moved?' TO value. "its not working or cant be moved
WRITE:/ value.
CONCATENATE 'It' 'Can' 'be' 'moved.' INTO value SEPARATED BY space. "its working perfect
WRITE:/ value.
My Point is pretty simple, Does NUMC allows characters in it. If yes, what are the scenario's.
Please shed some light on me.
Thanks & Regards
Dileep .C