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?

2129

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?

1988

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

2096

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

2049

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

2008

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

2353

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

2918

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?

2073

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.

1947

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

1899

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

4521

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

1 3530

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

1889

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

2254

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

1882

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Un-Answered Questions { Oracle General }

What is the data type of dual table?

995

How to get the Installed Oracle Version Information ?

1125

Compare and contrast between sql and sql server and explain its various functions?

964

Give the advantages and disadvantages of clusters.

1050

What is ASM (Automatic Storage Management) in Oracle?

1196

How to write a query with a right outer join in oracle?

1169

How to create a new table by selecting rows from another table?

1102

Which environment variables are absolutely critical in order to run the OUI?

2118

How to save query output to a local file?

1026

If any one has information regarding interview of NIC (National Informatics Centre),it would be of great help...

2231

How to drop an existing view in oracle?

946

What is a Garbage Collection? and what is full recursive Garbage collection?

2902

How to compare dates in oracle sql?

1102

Explain the difference between replace() and translate() functions in oracle?

1036

How can you merge two tables in oracle?

1001

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