Why Fload doesn’t support multiset table?

Answer Posted / amit sethiya

I believe Fastload silently discards duplicate rows. They don't go to the error table.

Many of the differences between FastLoad and MultiLoad are due to the fact that MultiLoad loads by way of an intermediate work table, whereas Fastload loads directly into the target table, which is sorted later. The sorting process automatically removes duplicate rows. The records that MultiLoad loads the work table during the acquisition phase are not exact images of the target rows. They contain sequence numbers that are generated by the client module. If the acquisition phase is restarted, the client may resend rows that were previously sent after the last checkpoint, as is the case with Fastload. However, only duplicate records with matching sequence numbers are discarded when the work table is sorted at the end of the acquisition phase. Duplicate records with non-matching sequence numbers are retained.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is partitioned primary index (ppi)?

565


What is teradata and why it is used?

581


tomorrow i have interview in infosys.can someone pour any suggestions or any interview questions. thank you

367


Mention the procedure via which, we can run Teradata jobs in a UNIX environment.

566


Explain BYNET.

604






What is oltp?

566


What are the various indexes in teradata?

562


Why do you get spool space errors? How do trouble-shoot them?

587


What is the particular designated level at which a LOCK is liable to be applied in Teradata?

597


What is the syntax for case when statement?

585


What is meant by a dispatcher?

562


Explain the term 'database' related to relational database management system?

573


What interface is used to connect to windows based applications?

580


Which is faster fastload or multiload?

593


Explain the advantages of partitioned primary index in a query?

562