Systems and methods for increasing database access concurrency
US11853269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2022 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | May 25, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2329
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The various embodiments described herein include methods, devices, and systems for reading and writing data from a database table. In one aspect, a method includes: (1) initiating a read transaction to read from a first non-key column of a row in the database table, the database table having a plurality of rows, each row comprising a primary key and a plurality of non-key columns, the initiating including: (a) determining that a write transaction holds a lock on a second non-key column of the row in the database table, and (b) determining that no lock is held on the first non-key column; and (2) in response, concurrently reading data from the first non-key column and writing a new column value to the second non-key column; where each non-key column includes a last-write timestamp that indicates when the last write occurred for the respective non-key column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.