Oracle General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Oracle General Interview Questions

Questions Answers Views Company eMail

Why does Oracle not permit the use of PCTUSED with indexes?

2421

What would you use to improve performance on an insert statement that places millions of rows into that table?

1 3711

What would you do with an in-doubt distributed transaction?

1976

What are the commands youd issue to show the explain plan for select

2 5278

In what script is snap$ created? In what script is the scott/tiger schema created?

2708

If youre unsure in which script a sys or system-owned object is created, but you know its in a script from a specific directory, what UNIX command from that directory structure can you run to find your answer?

2147

How would you configure your networking files to connect to a database by the name of DSS which resides in domain icallinc.com?

1913

You create a private database link and upon connection, fails with: ORA-2085: connects to . What is the problem? How would you go about resolving this error?

1 8962

I have my backup RMAN script called backup_rman.sh. I am on the target database. My catalog username/password is rman/rman. My catalog db is called rman. How would you run this shell script from the O/S such that it would run as a background process?

1 4014

Explain the concept of the DUAL table.

2 6082

What are the ways tablespaces can be managed and how do they differ?

2364

From the database level, how can you tell under which time zone a database is operating?

1 3178

Whats the benefit of dbms_stats over analyze?

1999

Typically, where is the conventional directory structure chosen for Oracle binaries to reside?

2139

You have found corruption in a tablespace that contains static tables that are part of a database that is in NOARCHIVE log mode. How would you restore the tablespace without losing new data in the other tablespaces?

1927

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Un-Answered Questions { Oracle General }

What is a initialization parameter file in oracle?

1035

What are the varoius components of physical database structure of oracle database?

1004

How to connect to a remote server?

1122

How will you differentiate between varchar & varchar2?

1039

what is dynamic SGA and static SGA

4413

Explain parameter file in oracle.

1025

How to drop an existing table in oracle?

1056

An automatic job running via DBMS_JOB has failedKnowing only that its failed, how do you approach troubleshooting this issue?

2051

How do I manually create a database in oracle?

1019

What is system tablespace?

1091

What happens if you use a wrong connect identifier?

1057

What are the roles of dba?

1065

What is the difference between PFILE and SPFILE in Oracle?

1060

What is recovery manager in Oracle?

1052

How to select all columns of all rows from a table in oracle?

1052

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