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 5790

a query to select maxmun 3 salaries of employee table

IBM, Polaris,

12 20387

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

5 10692

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

EDC,

2144

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

EDC,

2561

what is meant by magic query

2192

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

2 11216

What is autonomous transaction?

6 12245

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 4923

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 4454

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

4 7928

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 7620

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

1 5792

Differnce between view and index

3 6151

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 14348

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Un-Answered Questions { Oracle General }

Is there a combination of "like" and "in" in sql?

1072

What is backup in Oracle?

1010

What is a cursor in oracle?

1186

what is IDE,DMV in sql server?

2829

What is translate in oracle?

1105

What is the use of file param in imp command?

1167

What does sharding mean?

1009

Is it possible to center an object horizontally in a repeating frame that has a variable horizontal size ?

2363

How to start a new transaction in oracle?

1090

What is oracle data type?

973

What is an oracle transaction?

1155

How i can handle exception in large code like 1000 line without distrubing the code or without exception handler sction?

3208

What are the common oracle dba tasks?

1157

How to login to the server without an instance?

1169

What happens to the current transaction if the session is ended?

1100

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