1) Setup trial SAP HANA Cloud Database

2) Create JDBC Data Source
Name          = SAP_HANA_CLOUD_DB
Database Type = SAP HANA Cloud
User          = DBADMIN
Password      = 1234abcdZZ
JDBC URL      = jdbc:sap://<<SAP HANA Cloud Database's SQL Endpoint>>:443

3) Create iFlow use JDBC adapter connect to database

Package name    : Database
Iflow name      : JDBC_SAP_HANA_CLOUD_DB
Sender http path: /JDBC_SAP_HANA_CLOUD_DB

Package name    : Database
Iflow name      : JDBC_SAP_HANA_CLOUD_DB_BatchMode
Sender http path: /JDBC_SAP_HANA_CLOUD_DB_BatchMode

SELECT 'OK' AS TEST FROM DUMMY

Reference:
https://help.sap.com/docs/integration-suite/sap-integration-suite/managing-jdbc-data-sources