Oracle XE limitations

Excuse the newbie question. I know that Oracle XE has a limit of 4g on the size of a DB. Can you have multiple DBs?
We currently support our small customers on JET. They have large projects with seismic data. It can add up to bigger than 4G quickly if you are talking multiple projects. Can we support them with Oracle XE and each project can live in it's own DB?
Our bigger customers have SQL or Oracle servers.
We are moving away from JET. We are evaluating Oracle XE and SQL Express. OXE has a 4G user data limit that we want to know if it is a HARD limit. Assuming that a client site had 25 projects adding up to a total of 12G how would we support that scenario with Oracle XE?
Thanks in advance.
-E

From the manual I referenced:
3.2 Oracle Database XE Installation and Execution Restrictions
On a single computer, only one installation of the Oracle Database XE software can be performed. This does not affect any existing installation or new installations of Oracle Database 10g Standard Edition, Oracle Database 10g Standard Edition One, or Oracle Database 10g Enterprise Edition. In addition, users can run only one instance of the Oracle Database XE database on each individual computer. To run more than one Oracle Database server instance or install more than one copy of the database software, upgrade to Oracle Database 10g Standard Edition, Oracle Database 10g Standard Edition One, or Oracle Database 10g Enterprise Edition.
Therefore: any number of XE databases and instances - but only one per computer.
That said ... a lot of people are still confused by the definition of database being used. They tend to forget that a SQL Server database is roughly equivaleeeeeent to an Oracle schema, and an Oracle database can have any number of schemas. (Doesn't help with the OP's total size issue, though.)

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Message was edited by:
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