Systems and methods for synchronizing databases in a receive-onl

Details Systems and methods for synchronizing databases in a receive-onl Systems and methods for synchronizing databases in a receive-onl

1995-05-22

1997-07-15

Black, Thomas G.

39520001, G06F 1730

Patent

active

056491956

ABSTRACT:
Systems and methods for synchronizing a plurality of databases are provided for a plurality of geographically dispersed computers in receive-only communication. Each change made to a master database in a central computer is broadcast to a plurality of remote computers, each containing a replica of the master database, via a packet having an assigned next-broadcast-number and a sequential next-sequence-number. Each remote computer has means for comparing the next-broadcast-number and next-sequence-number of each received packet with the last-broadcast-number-received and last-sequence-number-received from a previous packet, and for selectively updating its replica database.

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WPAT Database--Article Entitled--Automatic Database Synchronization for Interspan Information Access Service--Propagating and Applying Database Updates, Resulting from End Users Logging in one Packing Provision Requests, to Databases of all Participating USDS & CPS, Apr. 1993.

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