SAP HANA Vora is an In-Memory query engine which runs on Apache Spark framework to analyze and process Big Data stored in Hadoop. Now. It is a definition which might confuse you, and obviously it did . So, starting with the fact of Big Data, all the information created on social media, product feedback, user suggestions and discussion on a website is a complex form of data, by analyzing those companies could take better decisions. That's why everybody is considering about processing that unstructured form of information. Hadoop framework is invented to analyze and process the unstructured data i.e. Big Data . Now, all this data would be stored and fetched from disks, so here some boost up could be used with the power of In-Memory of SAP HANA. Now, coming to the initial point of discussion, SAP HANA Vora , the In-Memory query engine provides the privilege to run in-memory queries which speeds up whole data processing step. In short , it accelerates OLAP analysis.