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SAP Hana Interview Questions and Answers

What is SAP HANA?

SAP HANA stands for High Performance Analytical Appliance- in-memory computing engine. HANA is linked to ERP systems; Frontend modeling studio can be used for replication server management and load control.

What is the role of the persistence layer in SAP HANA?

SAP HANA has an in-memory computing engine and access the data straightaway without any backup. To avoid the risk of losing data in case of hardware failure or power cutoff, persistence layer comes as a savior and stores all the data in the hard drive which is not volatile.

What are the different editions available in HANA appliance software?
  • Platform Edition: Platform edition is intended for customers who want to use ETL-based replication and already have a license for SAP BO Data Services.
  • Enterprise Edition: Enterprise edition is intended for customers who want to use either trigger-based replication or ETL-based replication and do not already have all of the necessary licenses for SAP BO Data Services.
Mention the two types of Relational Data stored in HANA?

The two types of relational data stored in HANA includes

Row Store
Column Store

What is modeling studio?

Modeling studio in HANA performs multiple task like

  • Declares which tables are stored in HANA, first part is to get the meta-data and then schedule data replication jobs.
  • Manage Data Services to enter the data from SAP Business Warehouse and other systems.
  • Manage ERP instances connection, the current release does not support connecting to several ERP instances.
  • Use data services for the modeling.
  • Do modeling in HANA itself.
  • essential licenses for SAP BO data services.
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