Sap Hana developed by SAP SE is an in-memory RDBMS (relational database management system) and primarily functions as a database server to file and retrieve data as demanded by the applications. Besides, it performs enhanced analytics (predictive analytics, spatial data analyzing, text search, streaming analytics, graph data processing) and includes extract transform load (ETL) tasks as well as an application server.
At present, SAP HANA is one of the most demanding versions of SAP. While preparing for the interview candidate’s focus should be to understand the system by the best possible method. It is important to grasp the architecture, principles, techniques and the framework of designing such software. We focus on making you comfortable by providing the necessary terminology and questions, which can be asked in the interview. After being familiar with these questions, you will surely be able to handle the questions asked in the interview. Not just this but knowing these questions will also increase your confidence level. Know about the SAP HANA merits and demerits. Also, read about the different edition which are available and what advantage does it has. Further, here are 20 interview questions of SAP HANA, which can be asked.
In SAP HANA Interview Questions interviews, it's important to clearly explain key concepts and demonstrate your coding skills in real-time. Practice articulating your thought process while solving problems, as interviewers value both your technical ability and how you approach challenges.
Our team has carefully curated a comprehensive collection of the top SAP HANA Interview Questions to help you confidently prepare, impress your interviewers, and land your dream job.
SAP HANA is a High-Performance Analytical Appliance-In-memory computing engine. HANA is originally linked to the ERP systems. For replication server management and load control, Frontend modeling studio is available for use.
The advantages of SAP HANA are stated below
BWA or (Business Warehouse Accelerator): BWA is known as an in-memory accelerator for Business Warehouse (BW). The main focus of BWA is on improving the query performance of SAP Net Weaver BW. BWA is particularly designed to accelerate BW queries and also for reducing the data acquisition time by persisting the copies of the info cube.
SAP HANA: SAP HANA is an in-memory database. It is a platform where high-performance analytic reports and application is found. Another thing to notice here is that in SAP HANA data can be loaded from SAP and non-SAP Source System through SLT, BODS, DXC, and Sybase. This can be viewed using SAP BO/BI, Crystal Reports or Excel.
Currently, SAP HANA is working as an in-memory database for SAP BW. And now SAP HANA is able to improve the overall performance of SAP Net weaver BW.
There are two types of relational data stored in HANA. They are:
SAP HANA is well known as an in-memory computing engine that has access to the data without any backup. There is a chance of losing data in case of hardware failure or power cutoff. To avoid this high degree risk persistence layer is used. It plays the role of a savior by storing all the data in the hard drive. And hence a reliable backup is been made.
Modeling studio in HANA performs multiple tasks like:
There are three different compression techniques in SAP HANA and they are:
Latency is the length of time required to replicate data from the original system to the new system i.e. from the source system to the targeted system.
In the Advanced Replication settings, a transformation rule is specified. It is designed in such a way that transaction for source tables is transformed during the replication process. For example, users can specify a rule in case of Converting the fields, to fill empty fields and also to Skip the records.
One of the most important advantages of SAP SLT is
In case the user thinks few data are irrelevant then to avoid such unnecessary information from being stored, users have to pause the replication by stopping the scheme related jobs.
The role of master controller job in SAP HANA is as follows:
When the replication is suspended for a longer period of time of SLT or HANA system then the actual size of the logging tables increases.
The role of the transaction manager is to coordinate the database transactions. He also keeps a record of running and closed transactions wherever possible. When the transaction is rolled back or is committed, it’s the duty of the transaction manager to notify the involved storage engines and about the event so that the necessary actions can be processed.
In the HANA database, each SQL statement is basically implemented in the reference of the transaction. Therefore in the further process, the new session is allotted to a new transaction.
The components of SAP HANA are as follows
SAP HANA as mentioned is a next-generation in-memory business platform. Stated below are the few reasons why is SAP HANA chosen.
SAP HANA Database – SAP HANA Database is a hybrid in-memory database. This Database is known as the heart of SAP in-memory technology. As mentioned in SAP HANA, Database tables are of two types
SAP HANA Platform – SAP HANA Platform is called the development platform with in-memory data storage. This facility allows the users to perform the analysis on a large volume of data that too in a real time. This Platform works as a platform for development. It also provides infrastructure and tools for building a high-performance application.
The different types of SAP HANA edition are
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