Oracle Server Database components status as Upgraded rather than Valid after Upgrade

A few times the database components will be in upgraded mode in the PDB once you have completed your database upgrade from 12c to version 19c.

column comp_name format a30
column status format a10
select comp_name, version, status from dba_registry;

COMP_NAME                              VERSION              STATUS

--------------------------------   ------------------      ----------

Oracle Database Catalog Views          19.0.0.0.0           UPGRADED

Oracle Database Packages and Types     19.0.0.0.0           UPGRADED

JServer JAVA Virtual Machine           19.0.0.0.0           UPGRADED

Oracle XDK                             19.0.0.0.0           UPGRADED

Oracle Database Java Packages          19.0.0.0.0           UPGRADED

SYS@sajiddb1>alter session set "_oracle_script"=TRUE;
session altered

SYS@sajiddb1>alter pluggable database pdb$seed close immediate instances=all;

Pluggable database altered.

SYS@sajiddb1>alter pluggable database pdb$seed OPEN READ WRITE force;
Pluggable database altered.

SYS@sajiddb1>alter session set container=PDB$SEED;
session altered

To resolve it follow the below steps.

@ORACLE_HOME/rdbms/admin/catalog.sql
@ORACLE_HOME/rdbms/admin/catproc.sql
@ORACLE_HOME/rdbms/admin/utlrp.sql

Check the components, it will be normal now.

SYS@sajiddb1>alter pluggable database pdb$seed close immediate instances=all;
Pluggable database altered.

SYS@sajiddb1>alter pluggable database pdb$seed OPEN READ ONLY force;
Pluggable database altered.

SYS@sajiddb1>show pdbs;
CON_ID  CON_NAME     OPEN MODE   RESTRICTED
------ ------------ ----------- ------------
 2       PDB$SEED     READ ONLY    NO

SYS@sajiddb1>alter session set "_oracle_script"=FALSE;
session altered


column comp_name format a30
column status format a10
select comp_name, version, status from dba_registry;
COMP_NAME                              VERSION               STATUS
--------------------------------    ----------------      ----------
Oracle Database Catalog Views          19.0.0.0.0             VALID
Oracle Database Packages and Types     19.0.0.0.0             VALID
JServer JAVA Virtual Machine           19.0.0.0.0             VALID
Oracle XDK                             19.0.0.0.0             VALID
Oracle Database Java Packages          19.0.0.0.0             VALID