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Migrating and upgradingYou can upgrade to the 14.10 release of HCL Informix® or migrate from other database servers to Informix®. Upgrading is an in-place migration method that uses your existing hardware and operating system software. Some changes to the Informix® database server can affect upgrading from a previous release.
Migrating Informix® database systemsThe Informix® Migration Guide describes how to move data manually between databases, servers, and computers.
Data migration utilities
The onunload and onload utilitiesThe onunload and onload utilities provide the fastest way to move data between computers that use the same database server on the same platform.
Syntax of the onload commandThe onload command loads data that was created with the onunload command into the database server.
Exclusive locking during a load operationDuring a load operation, the onload utility places an exclusive lock on the new database or table.

Exclusive locking during a load operation

During a load operation, the onload utility places an exclusive lock on the new database or table.

Loading proceeds as a single transaction, and onload drops the new database or table if an error or system failure occurs.

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