Walter Dnes wrote:
I'm running PostgreSQL 8.0.3, the latest stable ebuild, on Gentoo linux.
1) Am I inviting any problems in linux by moving the directory
/var/lib/postgresql to /home/postgresql, and then symlinking
/home/postgresql back to /var/lib/postgresql? The reason for this is
to avoid having databases, indexes, etc, physically ending up on my
/dev/sda1 partition, which I want to reserve for the OS only.
No. But I would rather do an initdb to a different location and edit
your init.d script, but this is a personal choice and I have trouble
deciding which is better or why :-)
2) Although I have an AMD64 cpu. I chickened out and went for a 32-bit
install. If/when I do migrate to 64-bit, can I keep my databases, or
will I have to export/import them?
I don't know how architecture-specific the data format might be as it is
written to disk, in particular how alignment might be affected. To be
safe, plan on an export/import and take a dump of your cluster before
you do the upgrade :-)
3) Are there any free sample datasets and tutorials for users who are
familiar with SQL and Oracle PL/SQL? I have no DBA experience, but I do
write quite a few read-only Oracle SQL queries and PL/SQL programs at
work, even though I'm not a CS. An Oracle-to-PostgreSQL comparison
would be nice to see.
Take a look at the online docs. The tutorial is aimed mostly at SQL
newbies, but there are sections on migrating from Oracle.
Best Wishes,
Chris Travers
Metatron Technology Consulting
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