Diff b/w INDEX & SUBSCRIPT, Use of FILLER Clause

karthi_ind · Posted: Mon Jun 14, 2004 3:01 pm

hi to all

my question is

1) What is the diff. b/w index and subscript?

2) what r diff. types of divisions. I saw in a book that thr
are 6 division. i know only 4 div. id div,en div,data div,proc div
what are all the other two div.

3) whatz the use of filler clause?

meetsrk · New User Joined: 13 Jun 2004 Posts: 85

hi karthik_ind,

for question...
1. difference b/w index and subscript is
Index is defined in occurs clause i.e for example,

02 LETTER REDEFINES TABLEVAL.
03 LETVAL PIC X OCCURS 26 TIMES INDEXED BY LTIDX.
...
...
add 1 to LTIDX. ===> cannot be done. yields to error

so here, LETVAL array can only be accesed by LTIDX
ie LETVAL(LTIDX). you cannot use any other integer variable.
LTIDX is called the index. and it initialized using SET verb. also we cannot use index variable for any arithmatic operation.

whereas,
Subscript is a normal variable used for accessing the array.
for e.g,

working-storage section.
77 i pic 9.
77 a pic x occurs 26 times.
...
...
...
procedure division.
...
...
add 1 to i. ===> can be done
display a(i).
...
...

so here, I is the subscript, here u can use that variable 'i' for any function, ie we can increment, decrement etc.

2. let me check it out and later answer it.

meetsrk · New User Joined: 13 Jun 2004 Posts: 85

for question..
3. Filler clause is used where we need some data that should not be assigned to the variables.

for e.g, to display a heading for a report like

ABC Company

eq. code is,

01 header.
02 filler pic x(75) value 'ABC COMPANY'.
...
...
...
....
display header.

mcmillan · Site Admin Joined: 18 May 2003 Posts: 1210 Location: India

jagdishmudiraj · New User Joined: 25 Apr 2007 Posts: 7 Location: gurgaon

Subscrip------ its an occurence
whereas
Index---------- its an displacement from the starting position