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

Oracle General Interview Questions

Questions Answers Views Company eMail

What is the cache hit ratio, what impact does it have on performance of an Oracle database and what is involved in tuning it?

2086

Other than making use of the statspack utility, what would you check when you are monitoring or running a health check on an Oracle 8i or 9i database?

1947

How do you tell what your machine name is and what is its IP address?

2019

How would you go about verifying the network name that the local_listener is currently using?

2005

You have 4 instances running on the same UNIX box. How can you determine which shared memory and semaphores are associated with which instance?

1950

What view(s) do you use to associate a users SQLPLUS session with his o/s process?

2315

What is the recommended interval at which to run statspack snapshots, and why?

2880

What spfile/init.ora file parameter exists to force the CBO to make the execution path of a given statement use an index, even if the index scan may appear to be calculated as more costly?

2003

Assuming today is Monday, how would you use the DBMS_JOB package to schedule the execution of a given procedure owned by SCOTT to start Wednesday at 9AM and to run subsequently every other day at 2AM.

1912

How would you edit your CRONTAB to schedule the running of /test/test.sh to run every other day at 2PM?

1860

What do the 9i dbms_standard.sql_txt() and dbms_standard.sql_text() procedures do?

4482

In which dictionary table or view would you look to determine at which time a snapshot or MVIEW last successfully refreshed?

1 3424

How would you best determine why your MVIEW couldnt FAST REFRESH?

1850

How does propagation differ between Advanced Replication and Snapshot Replication (read-only)?

2214

Which dictionary view(s) would you first look at to understand or get a high-level idea of a given Advanced Replication environment?

1838

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Un-Answered Questions { Oracle General }

What are the tools for Oracle ?

1018

What is a nvl function? How can it be used?

970

What do you mean by a database transaction & what all tcl statements are available in oracle?

947

What happens if variable names collide with table/column names?

1120

How do I find my oracle client driver version?

986

What do you know about normalization? Explain in detail?

892

What is literal?

960

What is a database schema in oracle?

1067

Why do we need integrity constraints in a database?

984

What is oracle rownum?

897

How to define an anonymous procedure without variables?

1040

How to drop an index?

920

Can we use oracle pl/sql block in core java? if so how? pls get back to me .....

2914

What are the various oracle database objects?

1104

How to use null as conditions in oracle?

1021

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