Method and system for supporting data consistency on an active standby database after DML redirection to a primary database

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United States of America Patent

PATENT NO 11847110
SERIAL NO

17202024

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Importance

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Abstract

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A database session in an active standby server on which an active standby database resides receives a DML statement. The session is suspended while the statement is redirected over a database link to a primary database on which the statement is executed. Information associated with execution of the statement is communicated to the session in the active standby server. Redo records describing changes to the contents of the primary database are applied to the active standby database and control is returned to the session. Prior to commitment of a transaction including the statement, a query directed to data to which the statement was directed is received at the active standby server from a client and executed on the active standby database absent use of a database link based on whether information associated with a database session associated with the client matches the information associated with execution of the statement.

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Patent Owner(s)

Patent OwnerAddress
ORACLE INTERNATIONAL CORPORATION500 ORACLE PARKWAY MAIL STOP 5OP7 REDWOOD SHORES CA 94065

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baby, Thomas Maple Valley, US 50 767
Girkar, Mahesh Baburao Cupertino, US 22 539
Li, Yunrui Fremont, US 54 1049
Raja, Vivekanandhan Fremont, US 35 836
Sonawane, Sachin Vijaykumar Redwood City, US 3 14

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