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Limitation of Oracle XE (Express Edition) databases

Any use of the Oracle Database Express Edition is subject to the following limitations;

1. Express Edition is limited to a single instance on any server;
2. Express Edition may be installed on a multiple CPU server, but may only be executed on one processor in any server;
3. Express Edition may only be used to support up to 11GB of user data (not including Express Edition system data);
4. Express Edition may use up to 1 GB RAM of available memory.

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