3.4 Overview of transaction management
You need transaction management in any enterprise information system (EIS) or a company's back-end system containing databases and transaction servers to ensure the consistency of data during business transactions. We recommend that you use local transactions for transactions on Application Servers.
Transaction management mechanism
The transaction management methods available for Application Servers include a local transaction and a global transaction. We recommend that you use a local transaction unless a global transaction must be used for system integration or for other reasons.
- Local transaction
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A local transaction involves a single resource.
- Global transaction
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A global transaction involves multiple resources. You must synchronize resources to control global transactions. Control of synchronization processing is expensive.