4.1 About Oracle Machine Learning for R Server

OML4R includes components on the Oracle Database server that enable an OML4R client to interact with OML4R Server.

Note:

The version of OML4R must be the same on the server and on each client computer. Also, the version of R must be the same on the server and on each client computer.

The components are:

• Oracle R Distribution or open source R

• OML4R Server

  • The RQSYS schema

  • Metadata and executable code in sys

  • OML4R Server libraries in $ORACLE_HOME/lib (Linux and UNIX) or %ORACLE_HOME%\bin (Windows)

  • OML4R R packages in $ORACLE_HOME/R/library (%ORACLE_HOME%\R\library on Windows)

    The OML4R packages and supporting packages on the server support embedded R execution. These same packages must be installed separately on each client computer. (See About the OML4R Packages).

See the following topics for additional information:

See Also:

• Table 1-4 for a list of supported R and OML4R versions.
• Figure 1-2 for an illustration of the server and client components of OML4R.

• About the RQSYS Schema
  The RQSYS schema is the system account for Oracle Machine Learning for R in Oracle Database.
• Security Best Practices for OML4R
  To minimize the risk of compromising the security of an OML4R Server in Oracle Database, Oracle recommends the following security best practices.