公开(公告)号：US20230185792A1

公开(公告)日：2023-06-15

申请号：US17548973

申请日：2021-12-13

Applicant: SAP SE

Inventor： Ji Hoon JANG ,  Juchang LEE ,  Changgyoo PARK ,  Myunggon PARK

IPC: G06F16/23 ,  G06F16/27

CPC classification number: G06F16/2365 ,  G06F16/273

Abstract: Systems and methods include reception of a workload statement, determination of whether the workload statement is a read statement or write statement, and, if the workload statement is a read statement, execution of the read statement to generate a first result set and transmission of the read statement for execution by a second database system to generate a second result set. If the workload statement is a write statement, the write statement is executed to change data of the first database system and the changed data is replicated to the second database system.

公开(公告)号：US20230409730A1

公开(公告)日：2023-12-21

申请号：US17892597

申请日：2022-08-22

Applicant: SAP SE

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

IPC: G06F21/62 ,  H04L9/14 ,  G06F21/60

CPC classification number: G06F21/6227 ,  H04L9/14 ,  G06F21/602

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：US20190325055A1

公开(公告)日：2019-10-24

申请号：US16014935

申请日：2018-06-21

Applicant: SAP SE

Inventor： Juchang LEE ,  Hyoung Jun NA ,  Kyu Hwan KIM ,  Deok Hoe KIM ,  Chang Gyoo PARK

IPC: G06F17/30 ,  G06F11/14 ,  G06F3/06

Abstract: Disclosed herein are system, method, and computer readable device embodiments for parallel replication of databases across row-store and column-store table formats. An embodiment operates by maintaining a replication log and a storage-level recovery log formatted according to separate respective log formats, logging a record-level SQL execution result, and replicating at least one database table from a primary server to at least one replica server. The primary server and the at least one replica server may each be configured to store data according to one table format of a row-store table format and a column-store table format, such that the primary server's table format is different from the at least one replica server's table format.