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SAP HANA Interview Questions and Answers

1. Which operating system is supported by HANA?

Currently SAP HANA supports SUSE Linux Enterprise Server x86-64 (SLES) 11 SP1 Operating System.

2. What are some features of SAP HANA in-memory database?

SAP HANA in-memory database main features are:

•    SAP HANA in-memory is a combination of row-based, column based and Object Oriented base technology.

•    It is Hybrid In-memory database.

•    SAP HANA in-memory use parallel processing with multicore CPU Architecture.

•    SAP HANA In-Memory database takes 5 nanoseconds to reads data whereas other conventional databases take 5 milliseconds to read memory data.

3. What is the Core Architecture of SAP HANA?

SAP HANA was first, developed in Java and C++ and was designed only to run on Suse Linux Enterprise Server 11 Operating System. SAP HANA system consists of multiple components which are responsible for enhancing computing power of HANA system.

4. What are the Authentication methods in SAP HANA?

In order to get access to HANA database all SAP HANA users must be verified with different Authentications Mechanisms provided by SAP HANA. Various types of authentication method are supported by SAP HANA system. These authentication methods methods are configured while creating user profile.

Here is the list of authentication methods supported by SAP HANA:

•    Kerberos

•    SAML 2.0

•    SAP Logon tickets

•    X.509

5. What are the different compression techniques in HANA?

Different types of compression techniques in available in SAP HANA are:

•    Run-length encoding

•    Cluster encoding

•    Dictionary encoding

•    Prefix encoding

•    Indirect encoding

•    Sparse encoding

6. What is the development language used by SAP HANA?

C++ is the development language used by SAP HANA.

7. What is the security features present in SAP HANA?

The following security related features are provided by SAP HANA:

•    Authentication and SSO

•    Authorization

•    User and Role Management

•    Encryption of data communication in Network

•    Encryption of data in Persistence Layer

8. Can Intercompany be compatible with HANA?

Intercompany is certainly not compatible with HANA databases.

9. How can the user create & export Plan in HANA Studio?

•    Prepare the SQL Statement in the SQL editor. User right-clicks your mouse button and selects Visualize Plan.

•    Clicking on the Save As the icon and specifying the same location in the top right-hand corner of the screen.

•    For viewing the executed plan, a user clicks on the Execute dropdown in the right-hand corner of the screen and click on Execute

•    Finally, clicking on the Save As the icon in the right-hand corner and select you to save location.

10. List the steps for upgrading your HANA express edition to HANA?

The steps for upgrading HANA express edition to HANA 2 are listed below:

•    First Increase memory to 8 GB

•    Also, download the Binary Installer

•    Please then create a temporary user

•    Uninstalling HANA 1 and Installing HANA 2

•    At last, connect to HANA 2 Cockpit

11. How to a HANA cross join between two nodes in a Graphical Calculation View as HANA is allowing only left and right join?

A dummy column can be introduced into a projection by returning a constant (for ex. 1) in both the nodes that user want to join. Now join the dummy columns. Therefore, technically it is still an inner join but more effectively crosses join.

12. How to view User Detail in S/4 HANA Cloud?

•    User Logs in as Administrator

•    Selecting App Maintain Business Users

•    In the Logon Status Dropdown selects All Users

•    Select go for generating a list view of Users

13. What is the role of master controller job in SAP HANA?

The job is arranged on demand and is responsible for

•    Creating database triggers and logging table into the source system

•    Creating Synonyms

•    Writing new entries in admin tables in SLT server when a table is replicated/loaded

14. Name various components of SAP HANA?

•    SAP HANA DB

•    SAP HANA Studio

•    SAP HANA Appliance

•    SAP HANA Application Cloud

15. How to Embed XS Engine in HANA?

User adds a custom parameter named embedded. To the http server section of the xsengine.ini file and setting its value to true.

SAP HANA Training at SAPVITS

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