公开(公告)号：WO2022081396A1

公开(公告)日：2022-04-21

申请号：PCT/US2021/053822

申请日：2021-10-06

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： KRISHNASWAMY, Vasudha ,  PENDSE, Sukhada ,  KOLAHI, Solmaz ,  KUMAR, Ankita ,  MYLAVARAPU, Ajit ,  SWART, Garret F. ,  LAHIRI, Tirthankar ,  LOAIZA, Juan R.

IPC: G06F16/27 ,  G06F16/23 ,  G06F16/2455

Abstract: A shared-nothing database system is provided in which the rows of each table are assigned to "slices", and multiple copies ("duplicas") of each slice are stored across the persistent storage of multiple nodes. Requests to read data from a particular row of the table may be handled by any node that stores a duplica of the slice to which the row is assigned. For each slice, a single duplica of the slice is designated as the "primary duplica". All DML operations are performed by the node that has the primary duplica of the slice to which the target row is assigned. The changes are then propagated other duplicas ("secondary duplicas") of the same slice.

公开(公告)号：WO2022081397A1

公开(公告)日：2022-04-21

申请号：PCT/US2021/053824

申请日：2021-10-06

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： MYLAVARAPU, Ajit ,  KRISHNASWAMY, Vasudha ,  PENDSE, Sukhada ,  KOLAHI, Solmaz ,  KUMAR, Ankita ,  SWART, Garret F. ,  LAHIRI, Tirthankar ,  LOAIZA, Juan R.

IPC: G06F16/27 ,  G06F16/23 ,  G06F16/2455

Abstract: A shared-nothing database system is provided in which the rows of each table are assigned to "slices", and multiple copies ("duplicas") of each slice are stored across the persistent storage of multiple nodes. Requests to read data from a particular row of the table may be handled by any node that stores a duplica of the slice to which the row is assigned. For each slice, a single duplica of the slice is designated as the "primary duplica". All DML operations are performed by the node that has the primary duplica of the slice to which the target row is assigned. The changes are then propagated other duplicas ("secondary duplicas") of the same slice.

公开(公告)号：EP4229523A1

公开(公告)日：2023-08-23

申请号：EP21801752.3

申请日：2021-10-06

Applicant: Oracle International Corporation

Inventor： KRISHNASWAMY, Vasudha ,  PENDSE, Sukhada ,  KOLAHI, Solmaz ,  KUMAR, Ankita ,  MYLAVARAPU, Ajit ,  SWART, Garret F. ,  LAHIRI, Tirthankar ,  LOAIZA, Juan R.

IPC: G06F16/27 ,  G06F16/23 ,  G06F16/2455

公开(公告)号：EP4229524A1

公开(公告)日：2023-08-23

申请号：EP21802479.2

申请日：2021-10-06

Applicant: Oracle International Corporation

Inventor： MYLAVARAPU, Ajit ,  KRISHNASWAMY, Vasudha ,  PENDSE, Sukhada ,  KOLAHI, Solmaz ,  KUMAR, Ankita ,  SWART, Garret F. ,  LAHIRI, Tirthankar ,  LOAIZA, Juan R.

IPC: G06F16/27 ,  G06F16/23 ,  G06F16/2455