what are the different ACCESS MODEs

pjnithin · Active User Joined: 22 Dec 2005 Posts: 116

For all kind of files.

What does the stmt 'ORGANIZATION IS INDEXED' do. What are the options other than 'INDEXED'.

And what are the different 'ACCESS MODEs'.

priyesh.agrawal · Posted: Mon Jan 30, 2006 10:26 pm

Manuals Please....

Regards,

Priyesh.

vinodmaanju · New User Joined: 10 May 2005 Posts: 28 Location: Pune

The different access modes are avaiable in COBOL is Dynamic, Sequential, and Random.

Different Organizations are Relative, Indexed and Sequential

elonics · New User Joined: 05 Jul 2005 Posts: 49 Location: India

Hai Friend,

We mention organsation based on their nature i.e. for

Sequential - Sequential
KSDS - Indexed
RRDS - Relative
ESDS - Sequential

Correct me if i am wrong.

Elonics.
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"I may be the best or atleast better than many but never worst"

nuthan · Posted: Tue Jan 31, 2006 3:20 pm

Hai,

Organisation is Indexed means for VSAM it specifies KSDS. U have to mention a Record key also. so that it will fetch the records based on this key.

Other than this we have Sequential and Relative organisations.

And the diffenrent Accessing modes are Sequential, Random and Dyanamic

pa1chandak · New User Joined: 31 Jan 2006 Posts: 55

The stmt 'ORGANIZATION IS INDEXED' SPECIFIES THAT IT IS A KSDS FILE

FOR PS organisation is Sequential
for KSDS - Indexed
RRDS - Relative
ESDS - Sequential
here we are specifing Sequential for both PS and ESDS , but the difference is for ESDS we will also specify ASSIGN TO AS_DD.

DIFFERENT 'ACCESS MODEs'. ARE
1. SEQUENTIAL
2. RANDOM
3. DYNAMIC (A COMBINATION OF BOTH SEQ AND RANDOM)

IN DYNAMIC SEARCH FOR THE PERTICULAR RECORD RANDOMLY AND THEN
READ SEQUENTIALLY.

PAWAN