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Oracle DBA (Database Administration) Interview Questions
Questions Answers Views Company eMail

If a tablespace shows excessive fragmentation what are some methods to defragment the tablespace? (7.1,7.2 and 7.3 only)

 576

What parameters control copy latches?

 600

What is difference between logical standby database and physical standby database?

 677

What is the easiest method to create a file on unix?

 570

using hot backup without being in archive log mode, can you recover in the event of a failure? Why or why not?

 1 1023

What is mutated trigger? In single user mode we got mutated error, as a dba how you will resolve it?

 570

What is explain plan and how is it used?

 612

What is the purpose of the grep command?

 1 2147

How do you set up tablespaces during an oracle installation?

 610

You have taken a manual backup of a datafile using os. How rman will know about it?

 554

What is an artificial (derived) primary key? When should an artificial (or derived) primary key be used?

 593

How many control files should you have? Where should they be located?

 585

What are four common errors found in an alert .log?

 564

How do you generate file output from sql?

 627

You see multiple extents in the temporary tablespace. Is this a problem?

 593

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Un-Answered Questions { Oracle DBA (Database Administration) }

How can you tell if an index on particular table is used or not used in 9i?

566

Who is dba in dbms?

583

What os user should be used for the first part of an oracle installation (on unix)?

554

Can you remove an open file under unix?

696

What are the skills required for oracle dba?

652

What is the full form of dba?

610

When should you increase copy latches?

649

How do you prevent oracle from giving you informational messages during and after a sql statement execution?

585

How can you determine the number of sqlnet users logged in to the unix system?

575

How do I become a dba?

588

When using oracle export/import what character set concerns might come up? How do you handle them?

600

What are functions of dba?

551

What are the types of locks in database?

623

What do you mean by oracle dba and what is its role?

588

What does database administrator do?

584

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