ETCC Failed in 19c Database - LsPatchesSession failed

First time running ETCC on newly cloned environment. While running ETCC script in database tier, it shows below error message in 19c Database

Error:

Identified database DST version: 32

Inventory load failed... LsPatchesSession::loadAndPrintInstalledPatch()

LsPatchesSession failed: RawInventory gets null OracleHomeInfo

Inventory load failed... LsPatchesSession::loadAndPrintInstalledPatch()

LsPatchesSession failed: RawInventory gets null OracleHomeInfo

Inventory load failed... LsPatchesSession::loadAndPrintInstalledPatch()

LsPatchesSession failed: RawInventory gets null OracleHomeInfo

Cause:

Database home entry is not registered in an central inventory. Checked the inventory.xml file from oraInventory location and it shows only application home entries.

Solution:

Use below command to register database home,

cd $ORACLE_HOME/oui/bin

./runInstaller -attachhome ORACLE_HOME=/u01/app/oracle/product/19.3.0/dbhome_1 ORACLE_HOME_NAME=OraDB19Home