SlackBuildsOrg/system/oracle-xe

Oracle Database 11g Express Edition (Oracle Database XE)

Oracle Database Express Edition is an entry-level,
small-footprint database based on the Oracle Database 11g
Release 2 code base. It's free to develop, deploy, and
distribute; fast to download; and simple to administer.

You need accept license before download oracle-xe and
you have to use a web browser to download it.

Oracle-XE is only available for 64 bits systems.

See README.Slackware for setup, configuration and usage
hints.