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Which statement is correct regarding undo management?(a) The database can have more than one undo tablespaces(b) The undo data must be purged manually when the transaction is over(c) The UNDO_TABLESPACE parameter is valid only if the UNDO_MANAGEMENT parameter is set AUTO OFF(d) Undo management is automatic by default even if the UNDO_MANAGEMENT initialization parameter is set to NULLI had been asked this question at a job interview.Asked question is from Installing Oracle Database 11g and Creating a Database in section Oracle Database 11g Architecture Options of Oracle

Answer»

Right ANSWER is (a) The database can have more than one UNDO tablespaces

Explanation: ORACLE provides an automatic undo MANAGEMENT, for managing undo information and space. With automatic undo management, the database MANAGES undo segments in an undo table-space.



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