Ans: SAP HANA is a high-performance business analytical application tool and supports an in-memory computing engine. SAP HANA is a type of ERP functional module which contains a front-end modeling studio that can be used for server management application developments and load controlling methods.
Ans: SAP HANA is considered as a unique ERP tool in many possible ways. The reasons are as follows;
Ans: The two types of relational data stored in SAP HANA are;
Ans: As I said earlier, the SAP HANA ERP tool contains an in-memory management engine that helps the user to access the data directly without any backups. The persistence layer avoids the risk of losing important data in case of any sudden power cut off or hardware failure. This layer is also called as a savior because it stores all the important data sets in the hardware without causing any accuracy.
Ans: SAP HANA is nothing but a collection of different tools and technologies. So there are 4 major components are available which collectively make the SAP HANA technology such as,
Ans: SAP HANA supports the following various platforms;
1. Microsoft Windows VISTA versions 7, 8 servers 2008 (32-bit memory)
2. Microsoft windows operating system versions 7,8,10 servers’ 2008/R2 (memory 64-bits)
3. SUSE LINUX operating server (SLES) version 11 (memory 64-bits)
4. Red Hat Enterprise Server (RHEL) version 6 (64-bit memory)
5. MAC operating system OS X Mavericks version 10.9.
Ans: The modeling studio is a building block of SAP HANA technology which performs the operations like;
Ans: There are three compression techniques available in SAP HANA technology such as;
1. Run-length encoding
2. Cluster encoding
3. Dictionary encoding.
Ans: The Latency in SAP HANA is referred to as the length of time taken to replicate the data from the multiple data sources to the target system.
Ans: The fundamental components of the SAP HANA environment included are;
1. In-memory computing engine.
2. Database (Replication agent and replication server)
3. SAP business objects BI 4 (designer tools, data server designers, and data servers, etc.)
4. SAP HANA studio (Eclipse-based tool)
Ans: The main function of the replication server is to manage the table data replication as well as table metadata from the multiple data sources.
Ans: The SAP HANA architecture consists of different components that make the system architecture.
Ans: The following are the important components of the index server;
1. Relational data engine
2. Connection and session manager
3. Planning engine system
4. Calc engine system
5. Persistence layer
Ans: Sizing in SAP HANA defines the hardware requirements for a specific SAP HANA installation process. Hardware components are considered as important for sizing parts of System CPU memory or RAM and hard disk requirements. The very tough task here is that estimate the size of the SAP HANA server that will be best suited for the user’s requirements.
Sizing in SAP HANA can be performed in three ways;
1. Using the quick sizer tool
2. Using the DB script
3. Using the ABAP report.
Row storage: Row storage is a data storage method that horizontally stores the datastores the data in a horizontal way. Users can store the data sets as similar to disk databases. Row storage in SAP HANA can be stored in the main memory whereas the traditional storage can be used to store the data in the disk databases.
Ans: Users can avoid storing the unnecessary data being stored in SAP HANA just by pausing the replication to stop the scheme-related jobs.
Ans: In the SAP HANA database, each SQL statement can be implemented with the references to the transaction. Frequently the new session can be allotted to the new SQL transaction.
Ans: The following are the some commonly used perspectives as follows;
Ans: The SAP HANA monitor in the studio can be used to perform tasks like administering and monitor the system’s performance and availability of SAP HANA architectural components. Also, users can access the SAP HANA system’s details, configurations, and the services offered by different SAP HANA components. SAP HANA system monitor can also be used to monitor several database aspects like alerts, trace disk, log disks, data disk, memory, data volume, and disk space, etc.
Ans: The following are the three types of information views such as;
Ans: The following are the three types of SAP HANA engines such as;
Ans: The packages in SAP HANA are nothing but folders which holds modeling related database objects. We call it a package because it contains all the information related to modeling studio in a complete package wise and later we can use it for transition purposes (Import/Export) purposes. This information may be of type information view, Sub-package details, analytical privilege, and procedures.
There are two types of packages used in SAP HANA,
1. Structural package
2. Non-structural package.
Ans: The schemas are a type of database element of the system which resides in the catalog node of the SAP HANA model. The relational SAP HANA database can be divided into sub-databases within the SAP HANA nodes. Schemas are like a container that contains information like element details, objects, or relational database details.
Ans: Let me explain the major differences between OLAP and relation connection are as follows;
Relation connection: Relation connection can be used when there is a need to access the conventional database tables. Relational connections can be created via IDT or UDT semantic layers.
OLAP: The OLAP connection is used to access multidimensional data cubes and it also establishes the direct connection to the SAP HANA business layer of the database model to the relational connection. These connections help users to connect to the database tables or information views in the SAP HANA.
Ans: The referential join in SAP HANA is a default join type in data modeling. This join is almost similar to an inner join. The only difference is that referential integrity can be formed when you are using referential join otherwise it cannot be formed. Referential join can be formed between a fact table and a master data table.
Ans: The following are the business objects reporting tools in SAP HANA such as;
The catalog node acts as a database directory for the SAP HANA model and also holds the structured information about the physical objects.
The content node contains information about the design-time repository data objects and also holds the packages such as attributes, views, calculation, and analytical views.
Ans: There are two possible ways to create a table in SAP HANA;
Ans: The SAP HANA uses the four types of connecting drivers such as,
Ans: A transformation rule is a rule which specifies the advanced replication level transactions for the source data table which is being transformed at the time replication process.
In this article, I have tried my best to explain the important SAP HANA interview questions with answers. SAP HANA is a type of ERP functional module and is mainly used in business processing applications. These interview questions with answers will help you to learn and crack any kind of complex interview.