Question

What is a tablespace? 10. What is the purpose of redo log files?

Answer 1

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TABLESPACE:

A tablespace is a storage location where the actual data underlying database objects can be kept. It provides a layer of abstraction between physical and logical data, and serves to allocate storage for all DBMS managed segments. Once created, a tablespace can be referred to by name when creating database segments.

PURPOSE OF REDO LOG FILES:

Whenever something changes in a datafile, Oracle records the change in the redo log. The name redo logindicates its purpose: If the database crashes, the RDBMS can redo (re-process) all changes on datafiles which will take the database data back to the state it was when the last redorecord was written.

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Answer 2

Answer:

A tablespace is a stronger where the actual data underlying database objects can be kept. It provided a layer of abstraction between physical and logical data, and serves to allocate storage for all DBMS managed segments. Once created, a tablespace can be referred to by name when creating database segments.

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