COBOL handling files with START and READ NEXT

[voicucosmin90]

Hi guys,
I have some issues with understanding of file handling in cobol and I need some help please.
I want to access a file but I don't have all the keys, the file has 5 keys and I have only two keys filled - it will be something similar with access with partial key in rpg with setll & dou, I made like this:
MOVE value1 to key1
MOVE value2 to key2
MOVE 0 to key3
MOVE 0 to key4
MOVE 0 to key5
start file1 key is >= externally-described-key invalid key move 1 to eof
end-start.
perform par1.
...

par1.
read file1 next at end move 1 to eof.
if key1 not = value1
and key2 not = value2
move '1' to eof
go to par1-fin.
...

par1-fin.

I want to simulate a loop to read all the records, for example when I made start I have value1=12 and value2='A' and I have 3 records in my file1
12 A
12 A
12 A
13 A
...
but I see in debug that it is something wrong, after read operation the value of key1 is 13 and not 12, it is something wrong with the positioning and reading?
Thanks

[voicucosmin90]

Re: COBOL handling files with START and READ NEXT

I think I was wrong the sign for start statement, it should be <, or I think it go also with NOT < but I should put the positioning at the final of file