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?

2746

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.

2220

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

1 4873

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

2458

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

2786

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

2414

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

2090

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

1964

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

1 4903

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

2 6414

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

1 5360

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

2538

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

1 5574

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

1 4600

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

2095

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Un-Answered Questions { DB Administration }

What is the difference between dropping a database and taking a database offline? : sql server DBA

1111

what is a crs resource?

1240

what is logical system in sap basis

1699

what are the differences of where and if in SAS?

2258

when does an alert gets signaled?

1114

How can you control the amount of free space in your index pages? : sql server DBA

1385

how can you initialize log miner?

1190

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

1166

What is the difference between clustered and non-clustered index? : sql server DBA

1148

what are the benefits of flashback feature?

1094

What authentication modes does sql server support? : sql server DBA

1265

What is replication? : sql server DBA

1239

what is the use of recording information about current session?

1112

How to start SQL Server in minimal configuration mode?

8093

What are the operating modes in which database mirroring runs? : sql server DBA

1242

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