Jack,
It is possible to have some partitions of a table
read only and some read write. Possible even if they are subpartitions. They are
requird, say, in a DW environment, where the current quarter's data is read
write but the rest are read only.
You can backup the read only tablespace only once,
and then <important> as long as you never make it read write
</important> you can recover it.
Since you are probably referring to a sort of
archival system, you can follow an approach I am using here. Our
requirement is to hold data online for three years, actually 12 quarters. So, in
the beginning of a quarter, I make the oldest partition of the tables a table
(alter table exchange partition) and make that tablespace read only. Then I
"transport" the tablespace to an optical jukebox using export/transportable, and
drop the tablespace. The tablespaces are named in a format with the year and
quarter in their names, so they are always unique. When the time comes to use
these older partitions, I simply plug them in and drop them after the rowrk is
done. This makes the process transparent to the user, actually to the tools used
by the user.
HTH.
Arup Nanda
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Title: Partitions of table read only
- Partitions of table read only Jack van Zanen
- Re: Partitions of table read only Darrell Landrum
- Re: Partitions of table read only Rachel Carmichael
- Re: Partitions of table read only Rachel Carmichael
- Re: Partitions of table read only Ron Rogers
- Re: Partitions of table read only Darrell Landrum
- Re: Partitions of table read only Simon . Anderson
- Re: Partitions of table read only Kirtikumar Deshpande
- Re: Partitions of table read only Arup Nanda
- Re: Partitions of table read only Rachel Carmichael
- Re: Partitions of table read only Arup Nanda
- Re: Partitions of table read only Rachel Carmichael
- Re: Partitions of table read only Indy Johal
- RE: Partitions of table read only DENNIS WILLIAMS
- Re: Partitions of table read only Kirtikumar Deshpande
- Re: Partitions of table read only Daniel Fink
- Re: Partitions of table read only Arup Nanda
- RE: Partitions of table read only Johnston, Tim
- Re: Partitions of table read only Rachel Carmichael