Archives of the TeradataForum
Message Posted: Mon, 26 Nov 2012 @ 22:09:08 GMT
| Subj: || || Re: Access Logging - Impact on performance |
| From: || || Walter, Todd |
Access logging will have an impact on the loading time if you are loading one record at a time through ODBC. But it will be a small part of the
problem, turning it off will give you percentage improvements not X times improvements. The real problem is taking away all the parallelism of
Teradata by giving the database only one record to process at a time and then having to sit idle while the response goes back to the application
and the application gets around to sending another record to process.
If ODBC is a must - rather than TPT - then the biggest improvement you can get is by utilizing the bulk/batch operators to send down an array
of records in each communication with the database.