公开(公告)号：EP3822811A1

公开(公告)日：2021-05-19

申请号：EP20195056.5

申请日：2020-09-08

Applicant: SAP SE

Inventor： LEE, Juchang ,  CHOI, Seoyoon ,  KIM, Eunsang ,  KIM, Kyu Hwan ,  LEE, Joo Yeon ,  NA, Hyoung Jun

IPC: G06F16/27

Abstract: RTR of a database transaction to a replica table may include receiving replication and transaction commit log entries (representing a database transaction). The replication log entry has a row-ID value, and the row at the replica table has a row-ID value. The replication log entry may be dispatched to a parallel log replayer and the associated transaction commit log entry to a transaction commit log replayer. The row-ID values may be compared, and the replication log entry is replayed at the parallel log replayer based on the comparison. The database transaction may then be committed to the replica table by replaying the associated transaction commit log entry at the transaction log replayer, wherein the database transaction is associated with row-level parallel replay having transactional consistency and DDL replication and reconstruction of a DDL statement at the replica system is associated with one or multiple metadata update log entries.

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.

公开(公告)号：EP4418123A1

公开(公告)日：2024-08-21

申请号：EP24153880.0

申请日：2024-01-25

Applicant: SAP SE

Inventor： HAHN, Uwe ,  KIM, Eunsang ,  ANDREI, Mihnea ,  THESING, Werner ,  VOELKER, Patrick ,  KARL, Ruediger ,  KWON, Yong Sik ,  CHOI, Jaeyoung ,  LUO, Jian ,  KIM, Hyunjun ,  SCHEFE, Andre ,  KLINGSPORN, Urs ,  MAY, Norman

IPC: G06F11/14

CPC classification number: G06F11/1469 ,  G06F11/1471 ,  G06F2201/8020130101 ,  G06F2201/8420130101

Abstract: Systems and methods include reception of an instruction to recover a first database tenant of a first database instance to a first point in time, the first database tenant associated with first database artifacts of the first database instance, and the first database instance including two or more database tenants and, in response to the instruction, creation of a second database instance, selection of backup data of the first database instance based on the first point in time, execution of a recovery of the backup data on the second database instance, export of second database artifacts of the first database tenant from the second database instance to a storage, truncation of the first database artifacts from the first database instance, import of the second database artifacts from the storage to the first database instance, and deletion of the second database instance.

公开(公告)号：EP4361834A1

公开(公告)日：2024-05-01

申请号：EP23204059.2

申请日：2023-10-17

Applicant: SAP SE

Inventor： KIM, Jaehwa ,  PARK, Kyungyul ,  KIM, Eunsang ,  LEE, Joo Yeon ,  LEE, Taehyung

IPC: G06F16/21

CPC classification number: G06F16/213

Abstract: Various systems and methods for selective revalidation of data objects are provided. In one example, a computer-implemented method includes updating a target data object of a database system according to a definition statement, and determining whether the definition statement changes one or more object properties of the target data object. In response to determining that the definition statement changes the one or more object properties of the target data object, the method includes revalidating data objects depending on the target data object. In response to determining that the definition statement does not change the one or more object properties of the target data object, the method includes not revalidating the data objects depending on the target data object. In this way, database management performance and speed may be improved while maintaining validity of data objects in a database.