Mastercard Incorporated
Systems and methods for use in data access

Abstract:

Systems and methods are provided for use in accessing data stored in multiple databases. One exemplary system includes first and second databases. The first database includes a first primary tablespace having first data, a first standby tablespace having first standby data, and a first journal. The first database is configured, in response to a request including a change instruction for the first data, to alter the first data consistent with the change instruction, append a change description indicative of the alteration to the journal, and transmit the journal to the second database. The second database is configured to then receive the journal from the first database and to alter second standby data included in a second standby tablespace of the second database consistent with the change description, thereby maintaining the second standby data in the second standby tablespace as a replicate of the first data in the first primary tablespace.