update undo$ set name=:2, ..Question

I'm seeing this in an AWR.

update undo$ set name=:2, file#=:3, block#=:4, status$=:5, user#=:6, undosqn=:7, xactsqn=:8, scnbas=:9, scnwrp=:10, inst#=:11, ts#=:12, spare1=:13 where us#=:1

What kind of undo activity is that?
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slightwv (䄆 Netminder)Connect With a Mentor Commented:
It's an update statement so it's writing somewhere.  I assume your real question is if it uses undo from the undo tablespace?

Again, it's manipulating the base table directly.  If this type of access uses 'normal' system resources like UNDO, only Oracle knows...
slightwv (䄆 Netminder) Commented:
Anything performing DML to a base table (most end with a '$') is performed by Oracle.

Hard to tell exactly what that means.  You can open an SR with Oracle Support but I really doubt they will provide specifics about what it is actually doing.
xoxomosAuthor Commented:
Thanks.  So you are unable to tell if this is writing to or reading from UNDO?
xoxomosAuthor Commented:
Thank you.
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