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SAP Hana Interview Questions and Answers

1
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.

2
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.

3
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.
4
Mention the two types of Relational Data stored in HANA?

The two types of relational data stored in HANA includes

Row Store
Column Store

5
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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