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Don Burleson Blog 







Oracle parallel upgrade tips

Oracle Database Tips by Donald BurlesonJanuary 30, 2015

How can I use the Oracle parallel upgrade utility in Oracle 12c?


Answer:  You can use the Oracle upgrade utility in 12c to allow you to leverage processing on servers with multiple CPU's.  To install the parallel upgrade utility, you need to run this dictionary script:

SQL> $ORACLE_HOME/diagnostics/catupgrd.sql

Now you are ready to run the Oracle parallel upgrade utility, a Perl script called

SQL> ORACLE_HOME/perl/bin/perl -n 8 -l

The 11g is replaced by the utility, and it is run automatically by the Database Upgrade Assistance (DBUA), or it can be executed manually.

In the example above, the "8" indicates the maximum parallel degree, and you you omit this positional parameter the default is parallel degree of 4.

This new utility promises to greatly speed-up Oracle upgrade operations.

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