linear search in array

lavanya · New User Joined: 08 Jul 2005 Posts: 8

hi,

can we search for an item in the file which is an a table-array format using search syntax.when i tried its always showing "NOT FOUND'.

the file structure,

FD DAT-FILE.
01 DAT-REC.
03 DAT-TABLE OCCURS 2 TIMES INDEXED BY I.
05 NUM PIC 9(3).
05 MARK1 PIC 9(3).
05 MARK2 PIC 9(3).
05 FILLER PIC X(71).

the search syntax

SEARCH DAT-TABLE AT END DISPLAY 'NOT FOUND'
WHEN N IS EQUAL TO NUM(I)
DISPLAY 'MARK1 ',MARK1(I).

clarify my doubt,

thanks,
lavanya

shivashunmugam Muthu · Posted: Tue Aug 02, 2005 11:22 am Post subject: Re: linear search in array

Hi Lavanya,

You have to set the value for your index. Say start from 1. Hav u done that?

shivashunmugam Muthu · Posted: Tue Aug 02, 2005 11:27 am Post subject: Re: linear search in array

If your table sorted one in the particular key order(Index Key), u dont need to SET the index. You can do SEARCH ALL option. Its called Binary search. In the prev case, what I told is serial search where SETting the index is the must & do only 'SEARCH' nt search all