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?

2172

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?

2037

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

2154

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

2105

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

2061

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

2394

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

2962

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?

2139

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.

1991

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

1989

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

4567

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

1 3622

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

1931

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

2305

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

1930

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Un-Answered Questions { Oracle General }

How to connect to the server with user account: sys?

1059

why should i declare foreign key constraint as self relation instead of binary relation in tables ?

2089

Is there a combination of "like" and "in" in sql?

1114

What are the differences between date and timestamp in oracle?

1093

Explain joins in oracle?

1089

how to join query for one source type is oracle another source type is sql server ?

2478

How to use subqueries with the in operator using oracle?

1137

How to create tables for odbc connection testing?

1202

What are the set operators union, union all, minus & intersect meant to do?

1026

How to drop a stored procedure in oracle?

1102

How to count groups returned with the group by clause in oracle?

1119

How to create a temporary table in oracle?

1329

How do you bind variables in oracle?

1018

How to drop an index in oracle?

1118

What is a view and how is it different from a table?

1122

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