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

1) WIll all the user get the DEFAULT profile, if their current profile got deleted at any point of time? 2) What are the Situation we need to MOVE the TABLE between T.spaces? 3) What is the use of MOVING the TABLE between SCHEMA'S? 4) What are the Table Clause, Segment Clause and the Datafile Clause which will override each other? 5) Explain SORT_AREA_SIZE of Tempfile to make UNIFORM SIZE

1966

1) What is ONE_SIZE_FITS_ALL approach? 2) Explain the Common & Variable Header of DATA FILE? 3) What are the Drawbacks to using OMF DB? and the Advantages? 4) List out the Advantages of Undo T.spaces over the Undo SEGMENT? 5) Difference between the Temporary tablespace with TEMPFILE and the Tablespace with TEMPORARY Keyword? 6) What are the situation extents are freeing for reuse.

TCS,

2085

what is the querry to get first 10 records from the emp table?(emp no is the primary key)

Verizon,

4 8140

What is Water Mark in Oracle?

Oracle,

7 22787

We need to compare two successive records of a table based on a field. For example, if the table is CUSTOMER, and the filed is Account_ID, To compare Account_IDs of record1 and record2 of CUSTOMER table, what can be the query ?

3 5227

How to call a stored procedure inside a trigger? Give an example.

Exilant,

1 11856

How to call a trigger inside a stored procedure?Give an example.

2 8940

Can we call a trigger inside a function and function inside a trigger? Give example.

Metric Stream,

1 14508

can we insert any row to dual table if i got the permission from DBA

HCL, Tesco,

5 17261

Why we are using primary key and foreign key in oracle and difference between primary key and foreign key?

1 4840

how to find the second highest salary in a given table????

5 8691

what is data abstraction

Semantic Space,

3 7067

IS it possible to built the oracle database without setting the kernal parameters?

EDS,

2344

I know that i can create a table without a primary key.But is there any significance for that table???? while creating an application.

6 8347

Shall I get Pro*C Compiler in Oracle-10g release ?

1 4635

Un-Answered Questions { Oracle }

What is the difference between truncate and delete? Why is one faster?

646

Will you be able to store pictures in the database?explain.

990

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

2089

Explain the use of grant option in imp command.

1021

What is blob datatype?

1119

Explain mutating triggers.

1025

What are the different editions of oracle?

1103

What is the cache hit ratio, what impact does it have on performance of an Oracle database and what is involved in tuning it?

2127

Can we save images in a database and if yes, how?

1057

What is call form stack?

Explain the truncate in oracle?

963

IS it possible to built the oracle database without setting the kernal parameters?

2344

What is procedure overloading in oracle?

1053

What is tkprof?

Can you create a synonym without having a table?

1038

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