Actian DataExchange

DataExchange is Zen's database replication solution. It copies data between two or more Zen databases to maintain hot backup systems, route data to reporting servers, or synchronize multiple remote databases.

DataExchange technology works by capturing and sharing changes from a Zen database to other databases in a DataExchange replication network. Zen Engine extends with DataExchange, which adds two software components to a Zen database: the replication event handler and the replication engine.

DataExchange focuses on two types of data replication:

  • Provide continuous access to data (Real-time backup)
  • Synchronizing multiple databases (Data Sync)

While both functions are useful, one often emerges as the primary driver for implementing data replication technology in a specific environment.

Principais features

Integração de Dados
Transferência em Tempo Real
Suporte a Múltiplas Fontes
Transformação de Dados
Monitoramento de Fluxos de Dados

Descripción completa

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The Replication Event Handler (REH) connects directly to the Zen Database Engine. Specifically, REH is a set of DLLs that operate on the database engine; therefore, if the database is running, the Replication Event Handler is also running. The database engine triggers REH when there is a change event (insert, update, delete). REH then records the event in one of its private control tables.

The Replication Engine is a separate process that performs the actual replication task. It reads the control tables to determine which records have changed since the last replication session. It then groups these changes into packages and shares them with other Replication Engines participating in a DataExchange replication network. These other mechanisms apply updates to their own databases. The replication process occurs continuously, at scheduled intervals, or on demand. The Replication Engine does not require constant network connectivity, so DataExchange is suitable for scenarios with intermittent connectivity, such as remote users with dial-up connections.

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