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

DB Administration Interview Questions

Questions Answers Views Company eMail

I have kept recovery catalog on same target database and taken backup of target DB to disk. deleted the target DB & tried to restore and revoer DB using the backup on disk but it is not possible, how do we restore & recover DB

2000

If CPU is very slow What can u do to speed up?

1 4634

if monday take full backup and tuesday it was cumulative backup and wednesday we taken incremental backup, thursday some disaster happen then what type of recovery and how it will take?

1 4082

when we login sql editor using username and password then it says this error "could not resolve service name" then what can we do at client side.( here thing is tnsnames.ora file is ok till yesterday and worked well, but now it giving error.

1798

How many memory layers are in the shared pool?

3 7864

How do you find out from the RMAN catalog if a particular archive log has been backed-up?

IBM,

2 11459

How can you tell how much space is left on a given file system and how much space each of the file system's subdirectories take-up?

2559

Define the SGA and: How you would configure SGA for a mid-sized OLTP environment? What is involved in tuning the SGA?

3812

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

2509

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?

2041

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

4 7462

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

3275

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

4483

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

2610

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

1 3348

Post New DB Administration Questions

Un-Answered Questions { DB Administration }

Where do you find the default index fill factor and how to change it? : sql server DBA

1125

what are the benefits of flashback feature?

1094

Database crashes. Corruption is found scattered among the file system neither of your doing nor of Oracle's. What database recovery options are available? Database is in archive log mode.

2356

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

1964

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

2458

How many files can a database contain in sql server?how many types of data files exists in sql server? How many of those files can exist for a single database? : sql server DBA

1251

what is the last version,the release date of that version and fix pack of ibm db2 udb?

2033

Explain materialized views and how they are used.

2501

What is a correlated sub-query? : sql server DBA

1158

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

2786

when does an alert gets signaled?

1114

What are statistics, under what circumstances they go out of date, how do you update them?

2312

Why would you use sql agent? : sql server DBA

1132

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

2610

Explain the difference between a FUNCTION, PROCEDURE and PACKAGE.

2392

For More Un-Answered { DB Administration } Questions Click Here