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Databases Interview Questions
Questions Answers Views Company eMail

How does Oracle guarantee data integrity of data changes?

 1932

Which environment variables are absolutely critical in order to run the OUI?

 1642

What SQL query from v$session can you run to show how many sessions are logged in as a particular user account?

 1 2925

Why does Oracle not permit the use of PCTUSED with indexes?

 1945

What would you use to improve performance on an insert statement that places millions of rows into that table?

 1 3021

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

 1466

What are the commands youd issue to show the explain plan for select

 2 4200

In what script is snap$ created? In what script is the scott/tiger schema created?

 2235

If youre unsure in which script a sys or system-owned object is created, but you know its in a script from a specific directory, what UNIX command from that directory structure can you run to find your answer?

 1652

How would you configure your networking files to connect to a database by the name of DSS which resides in domain icallinc.com?

 1462

You create a private database link and upon connection, fails with: ORA-2085: connects to . What is the problem? How would you go about resolving this error?

 1 8004

I have my backup RMAN script called backup_rman.sh. I am on the target database. My catalog username/password is rman/rman. My catalog db is called rman. How would you run this shell script from the O/S such that it would run as a background process?

 1 3151

Explain the concept of the DUAL table.

 2 5120

What are the ways tablespaces can be managed and how do they differ?

 1612

From the database level, how can you tell under which time zone a database is operating?

 1 2140

Un-Answered Questions { Databases }

How can we check the sql server version?

552

What are the five characteristics of good data?

511

What are triggers in oracle?

553

How to perform key word search in tables?

527

What are the advantages of normalization?

550




Can you explain the select into statement?

516

What are distinctive joins find as a part of sql?

552

What is the relation of a user account and a schema?

604

what is 'trigger' in sql? : Sql dba

553

How can we use ConnectorJ JDBC Driver with MS SQL?

564

What is insert command in sql?

522

You are creating an application where users are asked their gender in the gender combo box you have three options: ‘male’ , ‘female’ and ‘i choose not to disclose’ these options are stored in the table as 1, 0 or null which datatype should you use?

540

What is a production dba?

275

What is a relation in dbms?

525

Does google have a database like access?

477

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