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

Oracle General (1809)
Oracle DBA (Database Administration) (261)
Oracle Call Interface (OCI) (10)
Oracle Architecture (90)

Oracle Interview Questions

Questions Answers Views Company eMail

how to convert .db (extention) database file into .dmp (extention ) for oracle database ?

2555

A Table has 10,000 records,How can i get latest 10 dates from the table.so that i can only store those 10 records in to my Resultset Object,to reduce load on my app?

TCS,

7 11580

what is meant by magic query

2186

Define the terms primary key foreign key and also the difference between primary and the unique key

2 11201

What is autonomous transaction?

6 12225

i have a table and it has constraints and i want to get "ALTER TABLE table_name ADD CONSTRAINT constraint_name constraint type" this code must be in string type please help me if you want, i can give more explainings

2 4909

i must get table name, constraint type, constrain name with using concads "||" and it must be in string type, then with join processes i need code please help immidiately

1 4446

ex. one table is having 1 column with 10 records , then how to display all the values in row wise ?

4 7903

How to transfer database(500 gb) of oracle enterprise edition to standard edition downtime is only 1 hour not using exp/imp option ?

Digital Group,

3 7597

How to create placeholder columns?

2 26485

can any one help me with import/export options in oracle............

1 5783

Differnce between view and index

3 6133

SELECT * FROM (SELECT TITLE FROM MOVIE ORDER BY RANK DESC) WHERE ROWNUM > 4; when i run the above query .it produces output as NO ROWS SELECTED.why ?plz any one help me

TCS,

6 14322

what is difference between sap and oracle applications and which is now market leader?

Amity, Infosys, Rysigo, Unilogic Software, Wipro,

11 26736

What are triggers?Where are they used?

3 6446

Un-Answered Questions { Oracle }

How do I learn what codesets are available in oracle?

1038

We are using Oracle apps with XML publisher.In that,we are facing some problems while giving a Footer in RTF Template.While giving a footer in RTF Template it is Visible in all the pages,but after the PDF is getiing generated,the Footer are Visible on alternate pages only (like on first page ,third page) and so on. Please provide the Solution for getting the Footer on all the pages.

5329

Is postgres faster than oracle?

1040

How can you find out how many users are currently logged into the database?

606

What are the system predefined user roles?

1041

What are the arithmetic operations?

1084

What is rac and what are the various benefits of using rac architecture?

How to create a table interactively?

1090

Is a rollback possible to any savepoint?

1094

What is truncate oracle?

971

What does dba stand for database?

599

what are basic modules required to implement oracle application in any oraganisation?

2207

How to export your own schema?

1007

Where is the export dump file located?

1158

What is ceil and floor in oracle?

1069

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