RE: UNDO RETENTION

2002-12-12 Thread Paula_Stankus
Title: RE: UNDO RETENTION Having had frustration with rollback segments from time to time over the years I am happy to let Oracle handle it with their recommended automatic undo management and a defined undo tablespace. However, it isn't that simple is it? I imagine that undo retention

RE: UNDO RETENTION

2002-12-12 Thread Connor McDonald
v$undostat has a maxquerylen column - thats a good starting point in terms of avoiding ora-1555's if that's your primary concern hth connor --- [EMAIL PROTECTED] wrote: Having had frustration with rollback segments from time to time over the years I am happy to let Oracle handle it with

RE: UNDO RETENTION

2002-12-12 Thread DENNIS WILLIAMS
Paula - Oracle has added a new table in 9i to help your analysis. V$UNDOSTAT has a column MAXQUERYLEN that lists the longest query time, and can provide a guide. SSOLDERRCNT column counts the number of snapshot too old errors in a time period. In theory this should assist you in deciding whether