Hi Nagaraj,

Customer data schema is optional. If you have an optional customer data schema separate from the Pega data schema, enter the customerdata.schema.name.

# Connection Informationpega.jdbc.driver.jar=/path-to-the-database-JAR-file/DRIVER.jarpega.jdbc.driver.class=database driver classpega.database.type=database vendor typepega.jdbc.url=URL of the databasepega.jdbc.username=Deployment user namepega.jdbc.password=passwordrules.schema.name=new rules schemadata.schema.name=current data schemacustomerdata.schema.name=optional-customer-data-schema

Refer Upgrading the data schema in pega 8.4 upgrade guide for more detail https://community.pega.com/knowledgebase/documents/pega-platform-84-upgrade-guide-apache-tomcat-and-postgresql