Restrictions

For INSERT, UPDATE, and DELETE operations issued against user-maintained MQTs, no validity checking is done against the underlying base tables. The user performing the data changes is responsible for the correctness of the data. Similarly, the utilities LOAD, IMPORT, EXPORT, and DPROPR work with user-maintained MQTs, except no validity checking is done. You also cannot SET INTEGRITY to IMMEDIATE CHECKED for user-maintained MQTs.

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