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Oracle Interview Questions
Questions Answers Views Company eMail

Explain the wait events in statspack report 'db sequential real'?

 427

Explain the wait events in statspack report 'db scattered read'?

 394

What is your favorite tool for day-to-day oracle operation?

 358

What is the difference between truncate and delete? How would a full table scan behave after?

 401

What is difference between co-related sub query and nested sub query?

 404

What is oracle full backup?

 384

What is pga_aggregate_target?

 402

A dba had to remove some archivelogs to free up space in filesystem. Nowwhen the rman job starts to backup archivelogs, it complains about missing archivelogs thatwere deleted by dba. To resolve the issue and continue backing up remainder of archivelogs,which rman command can be used so it wo not complain about missing archivelogs.

 451

What are the tradeoffs between many vs few indexes? When would you want to have many, and when would it be better to have fewer?

 461

If you had a tablespace, test_tablespace, which consists of three files:test01.dbf, test02.dbf, and test03.dbf, and someone accidentally used the unix command"rm" to delete the file test02.dbf, what else would you need in order to recover all the data thatwas present in test_tablespace at the time that test02.dbf was deleted?

 408

Tell me about standby database? What should we watch out for?

 395

What is the difference between a materialized view (snapshot) fast refresh versus complete refresh? When is one better, and when the other?

 392

Explain the wait events in statspack report 'db scattered read', 'db sequential real', 'enqueue'?

 485

What are the steps involved in instance recovery in oracle?

 392

What is oracle log switch?

 407

Un-Answered Questions { Oracle }

Explian File steps in ODI?

449

How to load data from file to file and what are the KM's required for this requirement?

473

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

438

How to save query output to a local file?

802

How can windows applications connect to oracle servers?

736

What are the differences between date and timestamp in oracle?

801

How to connect to a local oracle 10g xe server?

744

suppose having unique and duplicate but I want to load unique record one table and duplicates one table?

603

How to execute the package in oracle?

829

What are the different windows events activated at runtime ?

2624

What is pragma autonomous transaction in oracle?

779

How to change user password in oracle?

824

while creating requisitions i am unable to see the list of organisation can anyone help me out ?

1945

what systems can odi extract and load data into?

424

How to update values on multiple rows in oracle?

787

For More Un-Answered { Oracle } Questions Click Here