I'm pretty sure I saw that once. I think one type is missing from the view that this is based on. You can modify the view and add the missing type. On 4 November 2011 15:05, Sheehan, Jeremy <JEREMY.SHEEHAN@xxxxxxxxxxxxxxxxx>wrote: > Has anyone come across the "invalid type" type when querying v$access? If > so, do you have any idea what might be causing it? I've searched google > and metalink and absolutely nothing. Just more people asking about it. Go > figure. > I'm attempting to refresh a MV and have tried a number of different > session parameters, but doing some digging I keep on seeing "invalid type" > in v$access when it's querying a particular table. I'm also seeing the > wait event "read by other session" on this table (ISO_BIDS) as well when > refreshing the MV. > > Oracle 10.2.0.4 > AIX 6.1.4 > > This is from a query that joins v$access and v$session. > > Session 217 is the MV refresh. Session 251 is another process running > that is accessing the ISO_BIDS table. > > OWNER OBJECT_NAME TYPE SID SERIAL# > USERNAME OSUSER STATUS > ------------ -------------------- ---------- ---------- ---------- > ------------ ------------ -------- > MFSDB ISO_BIDS INVALID TY 217 46581 USER1 > USER1 ACTIVE > MFSDB ISO_BIDS TABLE 217 46581 USER1 > USER1 ACTIVE > MFSDB ISO_BIDS INVALID TY 251 8712 USER2 > USER2 ACTIVE > MFSDB ISO_BIDS TABLE 251 8712 USER2 > USER2 ACTIVE > > Thanks in advance! > > Jeremy > > > -- > //www.freelists.org/webpage/oracle-l > > > -- Howard A. Latham Sent from my Nokia N97 -- //www.freelists.org/webpage/oracle-l