As far as non-commercial/cheap goes, MySQL is quite good, as is
As far as commercial goes, take a look at Sybase for Linux.
This is pretty off-topic, so if you want further info, email me personally.
Information Technology Manager
Sydnet Group Pty Ltd
Ph: 02 9873 6400 Fax: 02 9873 6411
From: John <firstname.lastname@example.org>
To: email@example.com <firstname.lastname@example.org>
Date: Saturday, June 26, 1999 5:11 AM
Subject: [NTISP] Web Database question
>If I wanted to run database applications on a LINUX server (PII-350 with
>256mb 100MHZ SDRAM running Caldera OpenLinux 2.2) what would the two
>databases of choice be in priority order? The database would be expected
>start off at about 300MB of data and grow at 10-12% per year and would need
>to service several hundred users per hour. Please give some examples why
>the databases you mention should be my leading choices.
>Thank you in advance.