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

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Databases Interview Questions

Questions Answers Views Company eMail

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

1 2196

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

1 2885

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

1 2339

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

1 2190

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?

1 2058

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

1 2189

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

1 2125

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

1 2080

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

1 2405

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

1 2987

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?

1 2178

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.

1 2005

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

1 2008

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

1 4584

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

1 3665

Un-Answered Questions { Databases }

Can we use distinct and group by together?

1129

Can we shrink data file in sql server?

1117

What are the risks of storing a hibernate-managed object in a cache? How do you overcome the problems?

1184

What is oracle latest version?

1165

What is sql server query analyzer?

1116

What are different types of constraints?

995

How do I find the sql server version?

1099

How do I create a trace in sql server?

1109

What is self contained sub query?

1133

Plz send me Oracle Pl/Sql [1z0-147] dumps to this mail? sivakumarr1987@gmail.com

1895

Can we do dml on views?

1027

Hi am new to PLSQL & facing problems in writing code like in SP, Functions, so any one having some SP coding with in depth explanation please share with me my Email ID suvarnaatsuvarna@rediffmail.com Or taking tanning on this please do contact me

2088

How to provide default values to function parameters?

1242

What is a concurrency problem in dbms?

1043

What are the different subsets of sql?

1642

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