DB Administration Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

DB Administration Interview Questions

Questions Answers Views Company eMail

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?

2617

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.

2098

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

1 4708

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

2367

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

2648

How would you best determine why your MVIEW couldn't FAST REFRESH?

2296

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

1988

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

1872

How would you begin to troubleshoot an ORA-3113 error?

1 4733

Which dictionary tables and/or views would you look at to diagnose a locking issue?

2 6189

An automatic job running via DBMS_JOB has failed. Knowing only that "it's failed", how do you approach troubleshooting this issue?

1 5171

How would you extract DDL of a table without using a GUI tool?

2443

You're getting high "busy buffer waits" - how can you find what's causing it?

1 5385

What query tells you how much space a tablespace named "test" is taking up, and how much space is remaining?

1 4418

Database is hung. Old and new user connections alike hang on impact. What do you do? Your SYS SQLPLUS session IS able to connect.

1991

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Un-Answered Questions { DB Administration }

What is the importance of a recovery model? : sql server DBA

970

What is transparent data encryption? : sql server DBA

1118

I got an error SQL1042C. An unexpected system error occurred. Explanation: A system error occurred. One possible reason for this error is that the database manager is not installed correctly or the environment is not set up correctly. On OS/2, while trying to start the database manager, a very common reason for this error is a corrupted NET.ACC file. The command cannot be processed. The tables and views would not be opened. What is the way to open the dataase? pls help me

4294

what is a user-defined lock?

986

what is a crs resource?

1117

Why would you use sql agent? : sql server DBA

1022

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

2648

List out some of the requirements to setup a sql server failover cluster.? : sql server DBA

1196

What are the high-availability solutions in sql server and differentiate them briefly? : sql server DBA

990

i have 10gp file.now i need store in database..but database have only 7gb memory only..how do u store the file ?

2022

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

1833

What are the different authentication modes in sql server and how can you change authentication mode? : sql server DBA

1049

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

2483

Explain materialized views and how they are used.

2386

which background process invoke at the time of upgradation tell me???

2665

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