Re: Reading a file# that doesn't exist

  • From: Tim Gorman <tim@xxxxxxxxx>
  • To: henry@xxxxxxxxxxxxxxx
  • Date: Fri, 16 May 2008 05:26:31 -0600

In SQL*Plus, run the command "show parameter db_files" which will show you that the initialization parameter DB_FILES is set to 200, so your first tempfile is numbered 201.


If you were to add another tempfile, it will be numbered 202.  And so on...
henry wrote:
I thought the same thing at first, but I've only got one tempfile in this system. It doesn't get me anywhere close to 201.

Henry


Tim Gorman wrote:
Tempfiles are numbered from (DB_FILES+1) upward...



Quoting Henry Poras <henry@xxxxxxxxxxxxxxx>:

I have a session on a development system that is waiting on 'db file
sequential read'.

It has been waiting for ~6000 seconds (state=WAITING).

File# (p1) is 201, yet the database only has file#'s from 1-19 (select file#
from v$datafile).

That explains the long wait. It's trying to read from a non-existent file.


Henry
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