公开(公告)号：EP3916577A1

公开(公告)日：2021-12-01

申请号：EP21174135.0

申请日：2021-05-17

Applicant: SAP SE

Inventor： THOMSEN, Dirk ,  GLEBE, Thorsten ,  SCHEUER, Tobias ,  THESING, Werner ,  GLOECKLE, Johannes

IPC: G06F16/25 ,  G06F16/2453

Abstract: Aspects of the current subject matter are directed to an approach in which a parallel load operation of file ID mapping containers is accomplished at start and/or restart of a database system. Parallel load operation of file ID mapping and/or large binary object (LOB) file ID mapping is done among a plurality of scanning engines into a plurality of data buffers that are associated with each of the plurality of scanning engines. Each scanning engine operates on a certain path of a page chain of a page structure including the mapping, causing the page chain to be split among scanning engines to process maps. Contents of the data buffers are pushed to mapping engines via a queue. The mapping engines load the file ID mapping and the LOB file ID mapping into maps for in-system access.

公开(公告)号：EP4293533A1

公开(公告)日：2023-12-20

申请号：EP22204505.6

申请日：2022-10-28

Applicant: SAP SE

Inventor： ANDREI, Mihnea ,  BOEHM, Alexander ,  MAY, Norman ,  KLINGSPORN, Urs ,  BLOCK, Meinolf ,  VOELKER, Patrick ,  KIM, Hyunjun ,  GLEBE, Thorsten ,  BREGLER, Jonathan ,  CHOI, Jaeyoung ,  KITTEL, Martin ,  KWON, Yong Sik ,  HAHN, Uwe ,  ZAHN, Henning ,  HANDRECK, Melanie ,  MACK, Holger ,  KIM, Eunsang ,  RENKES, Frank ,  LEE, Juchang ,  SCHINDEWOLF, Martin ,  BOWMAN, Ivan ,  DANNECKER, Lars

IPC: G06F16/27 ,  G06F21/62

Abstract: Systems and methods include creation of a first instance of a tenant object in a database instance, association of the first instance of the tenant object with a first plurality of database artifacts including first data associated with the first instance of the tenant object, creation of a second instance of the tenant object in the database instance, association of the second instance of the tenant object with a second plurality of database artifacts including second data associated with the second instance of the tenant object, and reception and response to queries on the first data associated with the first instance of the tenant object and to queries on the second data associated with the second instance of the tenant object.