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

Oracle General Interview Questions

Questions Answers Views Company eMail

What is the purpose of init.ora. ? how many init.ora exist in oracle installation? suppose there are 3 database on one oracle server, how many init.ora do I have? what are various database objects? how will you identify memmory related performace issue in oralce? any idea about basic architure difference of oracle and db2? comment on which is better , with reasons? what is a fuction based index? is it recommended to use the same. ? what is global temporay table? what is teh signification of the parameter session_cached_cursor ?

HDFC,

1 5776

a query to select maxmun 3 salaries of employee table

IBM, Polaris,

12 20308

Ho to insert no. of records at a time..i mean i want to insert 100 records at a time into a table

5 10644

I have a database backup file in .db (ext) form how to conver it into .dmp (ext.) for oracle database

EDC,

2134

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

EDC,

2552

what is meant by magic query

2179

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

2 11195

What is autonomous transaction?

6 12212

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 4897

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 4439

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

4 7894

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 7572

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

1 5778

Differnce between view and index

3 6124

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 14305

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Un-Answered Questions { Oracle General }

An automatic job running via DBMS_JOB has failedKnowing only that its failed, how do you approach troubleshooting this issue?

2049

HI ALL, CAN ANYONE TELL ME THE DIFFERENCES BETWEEN SQL CLUSTURS,MSQL CLUSTERS,ORACLE CLUSTERS.......THANKS IN ADVANCE

2230

What is Trigger in Oracle?

1167

How to write text literals in oracle?

1064

How to define a cusotmer as a supplier in ORACLE R12

2228

List the various oracle database objects?

1054

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

1897

What is a cursor variable?

1122

How to create a new tablespace in oracle?

982

How to delete all rows a table in oracle?

1066

What are the uses of Database Trigger ?

1712

please explain.. DB architecture ...

2017

What is oracle join syntax?

1000

How to convert numbers to characters in oracle?

1028

What are the different windows events activated at runtime ?

2898

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