Note: This is very similar to the update of DB2 configuration parameters, where changes in some parameters take effect immediately, and some are deferred to the instance or database restart.
注意：这非常类似于DB2配置参数的更改，其中对某些参数的更改可以立即生效，有些则会等到实例或数据库重新启动之后才生效。
Neither REFRESH DEFERRED nor REFRESH IMMEDIATE system-maintained MQTs allow insert, update, or delete operations to be executed against them.
不管是REFRESHDEFERRED还是REFRESHimmediate类型的系统维护的MQT，对它们的insert、update或delete操作都是不允许的。
Neither REFRESH DEFERRED nor REFRESH IMMEDIATE system-maintained MQTs allow insert, update, or delete operations to be executed against them.
不管是REFRESHDEFERRED还是REFRESHimmediate类型的系统维护的MQT，对它们的insert、update或delete操作都是不允许的。
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