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Are database administrators in demand?
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How would you find total size of database in os level?
Which process writes data from data files to database buffer cache?
What is the dba role in oracle?
While taking hot backup (begin end backup) what will happens back end?
You look at the dba_rollback_segs view and see that there is a large number of shrinks and they are of relatively small size, is this a problem? How can it be fixed if it is a problem?
You look at the dba_rollback_segs view and see that you have a large number of wraps is this a problem?
using hot backup without being in archive log mode, can you recover in the event of a failure? Why or why not?
Explain the wait events in statspack report 'db sequential real'?
What is pct free/pct used/pct increase parameter in segment?
Which date function is used to find the difference between two dates?
How do you prevent oracle from giving you informational messages during and after a sql statement execution?
What skills should a dba have?
Oracle General 
