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Oracle General Interview Questions
Questions Answers Views Company eMail

Suppose U install the oracle DB either enterprise edition or express edition in ur personal PC, Is there the Database has been created after ur installation if not then where the oracle's all objects with data be stored?

IBM,

1 4059

emp numb is unique because that is primary key,,but what is foreign key .. explain very clear with example

 1 3459

I have table-A(1,2,3)& table-B(3,4,5).what is the different b/w below questions? A union all B? B union all A?

Zensar,

2 5560

I have table-A(1,2,3,4,4,5,6,6,6,7). how to get all duplicate values?what is sql query?

Zensar,

5 8784

Please explain me all types of Data models. Also give me the details if each model can have other name.for example:schematic data model is also known as conceptual data model and entity relation data model.

 2362

how to find count rows in table without count function?

Oracle,

3 7119

i have executed the Delete command after the I have created table whether deletions will be commit or not? if table is successfully created?

Oracle,

5 7985

Q) How to Find Max Date from each Group? (Asked in Infosys (INFI)Interview)

Infosys,

4 8557

is database gud carrier option??

 1 3678

can anyody please send me the dump for Oracle 10g certifications for DBA path?

 2194

how to retrive xml data for using sql query?

IBM, TCS,

3 7103

1. How actually index will work ? 2. Why do people prefer mostly bitmap index and btree index in datawarehouse ? 3. If I use the column in aggrigate functions like max,min,count and avg and if I have a index created on that column, will it increases the performance ?

IBM,

1 4740

nw i'm doing MBA system and planning to do oracle,database management.tell me that whether it is useful r not?.refer any course for my carrier pls

 2263

Without giving condition how to retrieve the unmatched records from table.

TCS,

1 5024

In not less than 100 words what's the main difference between Rolap and Molap in ORACLE ?

2336

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Un-Answered Questions { Oracle General }

What is an Oracle Instance?

1162

What is literal?

1062

State any two functions of oracle?

1096

What happens internally when the user types userID/password@string in SQL PLUS Thanks-Bhaskar

4682

How to select some rows from a table in oracle?

1125

How to revoke create session privilege from a user in oracle?

1068

Is truncate autocommit in oracle?

1147

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

2176

What are the different pseudo commands? Explain in general?

1123

Is oracle an operator?

982

What the is the diff between local index and global index. give some example.

1682

How to create a testing table in oracle?

1031

What is materialized view in Oracle?

1114

What is truncate oracle?

1014

Explain the use of indexes option in exp command.

1208

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