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What is the difference between the snapshot and synonym?

April 26, 2017difference Snapshot synonym

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What is the difference between the snapshot and synonym?

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? A snapshot refers to read-only copies of a master table or tables located on a remote node. A snapshot can be queried, but not updated; only the master table can be updated. A snapshot is periodically refreshed to reflect changes made to the master table. In this sense, a snapshot is really a view with periodicity. ? A synonym is an alias for table, view, sequence or program unit. They are of two types private and public.