You can use data dictionary views to help you build queries,debug SQL problems,and review naming conventions.
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Q21: Sometimes,you may need to manually trigger a
Q22: The users SYS and SYSTEM are the
Q23: _ contain transaction records of all database
Q24: The _ tablespace is created by default
Q25: _ contain pointers to all datafiles and
Q27: A database should have at least five
Q28: The status of a redo log group
Q29: The _ tablespace contains all the metadata,or
Q30: _ are the physical layer of an
Q31: DBA prefixed views are solely for database
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