This chapter describes administrative tasks for maintaining and optimizing Oracle Machine Learning for R.

This chapter contains these topics:

• Install Oracle R Distribution on Linux in a Non-Default R_HOME
  The Linux RPMs can be installed to a directory other than the default Linux R_HOME, /usr/lib64/R.
• Upgrade Oracle Machine Learning for R
  You can upgrade Oracle Machine Learning for R from the previous release 1.5.1 to the current release 2.0.
• Migrate Oracle Machine Learning for R Data
  Oracle Machine Learning for R Server includes migration scripts that you can run to migrate the RQSYS schema and Oracle Machine Learning for R user data from a source database to a target database
• Uninstall Oracle Machine Learning for R
  Instructions for uninstalling Oracle Machine Learning for R
• Install Additional R Packages on Linux
  On Linux platforms, the Oracle Machine Learning for R Server installation provides the ORE script, which you can run from the operating system prompt to install additional R packages.
• Create a Database User for Oracle Machine Learning for R
  In Database 26ai, the rquser.sql script shipped with Oracle AI Database 26ai resides in the $ORACLE_HOME/R/server directory. The script installs creates a new OML4R user, and the script rqgrant.sql in the same directory applies the required grants to the new user.
• Create an Oracle Wallet for an Oracle Machine Learning for R Connection
  An Oracle wallet is a password-protected container for storing security credentials in Oracle AI Database.
• Control Memory Used by Embedded R
  How to control the memory used by embedded R execution.