While taking hot backup (begin end backup) what will happens back end?
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How should a many-to-many relationship be handled?
Can you remove an open file under unix?
What is dba and functionalities of dba?
What is the difference between sga and pga?
What is the purpose of the grep command?
What should a dba know?
What is the difference between a database and instance? What is the relation between them?
When should an artificial (or derived) primary key be used?
Explain the wait events in statspack report 'enqueue'?
If you are not sure what command does a particular unix function what is the best way to determine the command?
What are the types of locks in database?
What does the no logging option do? Why would we use it? Why would we be careful of using it?