Installation Guide Oracle Database Postinstallation Tasks Recommended Postinstallation Tasks Recommended Postinstallation Tasks Oracle recommends that you complete these tasks after installation. Creating a Backup of the root.sh ScriptOracle recommends that you back up the root.sh script after you complete an installation. Setting Language and Locale Preferences for Client ConnectionsConfigure client applications connecting to an Oracle Database according to your locale preferences and your I/O device character set. Recompiling All PL/SQL ModulesRun the utlrp.sql script after you install, patch, or upgrade a database, to identify and recompile invalid PL/SQL modules. Downloading and Installing the ORAchk Health Check ToolDownload and install the ORAchk utility to perform proactive heath checks for the Oracle software stack.