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________ is the smallest unit of allocation in an Oracle database.

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________ is the smallest unit of allocation in an Oracle database.

(a) Database

(b) Instance

(c) Tablespace

(d) Database Block

This question was posed to me during an interview.

This intriguing question comes from Data-Dictionary Storage in portion Storage and File Structures of Database Management

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Best answer
The correct option is (d) Database Block

Best explanation: Data block is a form of database space allocation.

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