AS/400 – Logical file without key fields

1215 pts.
Tags:
AS/400 DB2
I am creating logical file without any key fields. Here both logical file and physical file do not have any key fields. How will be the access path built here?

Software/Hardware used:
AS400

Answer Wiki

Thanks. We'll let you know when a new response is added.

<i>How will be the access path built here?</i>

It will be what is known as “arrival sequence”. In general, the access path will be the physical sequence that records are stored on disk.

Note that physical sequence possibly have little relationship to the order that records were written to the file. E.g., if the REUSEDLT(*YES) attribute is set for the physical file, then normal add/change/delete maintenance can place new records into the physical positions of records that were previously deleted. File reorganization and various changes over the years can also affect the physical ordering on disk.

The basic rule is that the order of retrieval is not guaranteed unless you specify an order.

Tom

Discuss This Question:  

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Thanks! We'll email you when relevant content is added and updated.

Following