Install Oracle11g R2 and upgrade Oracle 11g R1 to Oracle 11gR2
Install Oracle11g R2 and upgrade Oracle 11g R1 to Oracle 11gR2. Install Oracle software 11gR2, Start the old 11.1.0.7 database, Stop the old listener and create a new listener for Oracle 11gR2, Run utlu112i.sql to verify whether all the prereqs have matched - OLD Home, Run catupgrd.sql for upgrade from 11.1.0.7 to 11gR2 - New Home.
Cause of the Problem If you look for the ls -l output you will see timezone.dat and timezlrg.dat are not present but multiple versions timezlrg.* and timezone.* are present. The problem happened because there is a choice of timezone versions are available.
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options
Source: www.appsdba.info
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