International Business Machines Corporation

Nagaraju Inturi

Clarence Madison Pruet, Iii

Shawn D Moe

Pradeep Natarajan

An approach is provided for sending a notification of change(s) in a database in a multi-client database environment. Event data in a database satisfying criteria is identified by examining a log that is updated after the event data is committed in the database. The criteria indicate change(s) in data in the database. The event data is grouped into data sets specified by subscriptions of client computer(s) in the multi-client database environment. The grouped event data is pushed to the client computer(s) for consumption by application(s) being executed by the client computer(s), respectively. A notification is sent to the client computer(s) of the change(s) to the data in the database.

Sending notifications in a multi-client database environment

Provided are techniques for replication in a grid based environment. Grid control structures, including a grid command structure, are created. At an authorized node in a grid of nodes, a Data Definition Language (DDL) operation is received, the DDL operation is inserted into the grid command structure, and the DDL operation is propagated from the authorized node to one or more other nodes in the grid of nodes at the end of a transaction that inserted the DDL operation into the grid command structure.

Grid based replication

A method to replicate data is provided. A first replicate comprises a plurality of participants. The first replicate replicates one or more columns of a table. Replication data is transformed between a first local dictionary format and a first common dictionary format at a first participant of the plurality of participants. The replication data is transported in the first common dictionary format among the plurality of participants of the first replicate. The replication data is applied to a table on at least one other participant.

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Overland Park, KS, United States of America

Nagaraju Inturi