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 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?

1 2574

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

1 3838

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 2522

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 2062

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

4 7524

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

1 3293

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 4503

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

1 2623

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

1 3374

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 2760

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 2238

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

1 4893

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

1 2472

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

1 2802

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

1 2431

Un-Answered Questions { Databases }

do you know how to configure db2 side of the application? : Sql server database administration

1117

what are the advantages of sql ? : Sql dba

1136

Is there some bulk load or other way to import a lot of data fast?

929

in oracle BPM composer in part BA model on design model in enterprise model i cannot connection with value chain model work not links in part properties do you can me help me?

1601

How efficient you are in oracle and SQL server?

1251

How many concurrent programs you have customized, can you name some of them?

What kind of problems occurs if we do not implement proper locking strategy?

1493

What are the two main functions of queries in databases?

1522

List out the different types of locks available in sql server?

1044

What is the difference between case version and decode version?

1102

How to connect php with different port numbers?

1177

Can we do dml on views?

1030

what is spatial nonclustered index

1054

i have all the Oracle Certification material from 1z0-001 to 1Z0-643, if required just drop me a mail to: summi4you@yahoo.co.in

1852

How to convert character strings into numeric values?

1186

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