Relational CONNECTION: A Relational connection is used to connect to the Database layer in HANA. You can connect to database objects - tables, views, and design Data FOUNDATION layer in the Information Design TOOL. You can also import tables and joins from the data source.

OLAP Connection: OLAP is a multidimensional connection that DIRECTLY points to the business layer in a data model. It allows to connect to multidimensional schema directly and later, they can be used with SAP Business Objects REPORTING tools.

Relational Connection: A Relational connection is used to connect to the Database layer in HANA. You can connect to database objects - tables, views, and design Data Foundation layer in the Information Design tool. You can also import tables and joins from the data source.

OLAP Connection: OLAP is a multidimensional connection that directly points to the business layer in a data model. It allows to connect to multidimensional schema directly and later, they can be used with SAP Business Objects reporting tools.