To upgrade from Oracle 11gR2 to Oracle 18c/19c, we need to remove OLAP. Remove OLAP Catalog by running the 11.2.0.4.0 SQL script $ORACLE_HOME/olap/admin/catnoamd.sql script.

[oracle@localhost admin]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Mon Feb 26 01:48:34 2018

Copyright (c) 1982, 2013, Oracle. All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> @catnoamd.sql

Synonym dropped.

Synonym dropped.

Synonym dropped.

Synonym dropped.

Synonym dropped.

<<< OUTPUT Truncated>>>>

PL/SQL procedure successfully completed.

1 row deleted.

SQL> commit;

Commit complete.

SQL>

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