Hint:- first shutdown database and listener
1. copy patch zip and latest opatch utility to desired directory
2. unzip patch zip file
3. cp opatch_zip file to $ORACLE_HOME/
4. cd $ORACLE_HOME/
5. mv OPatch OPatch_old
6. unzip opatch_zip
7. you will see new OPatch directory in $ORACLE_HOME/
8. cd OPatch/
9. run ./opatch version
10. cd to patch_zip directory
11. cd 32435354/
12. 32435354~]$ $ORACLE_HOME/OPatch/opatch apply
13. if unwanted happens then rollback changes using below
32435354~]$ $ORACLE_HOME/OPatch/opatch rollback -id 32435354
14. In the Final step run datapatch utility after starting database and listener
$ORACLE_HOME/OPatch/datapatch -verbose
if possible open all pdbs (pluggable databases)
select * from v$pdbs;
alter pluggable database all open;
alter pluggable database pdb_name save state;
alter pluggable database all save state ;
GRID PATCHING :-
cd patch_directory then execute below:-
make sure you've exported all oracle environment variables ORACLE_HOME,ORACLE_SID,PATH,
LD_LIBRARY_PATH,etc.
$ORACLE_HOME/OPatch/opatchauto apply -oh $ORACLE_HOME
$ORACLE_HOME/OPatch/opatchauto apply /path/to/patch_directory -oh $ORACLE_HOME
