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

JDBC Interview Questions

Questions Answers Views Company eMail

what is the difference between SENSITIVE and INSENSITIVE?

1 9149

what is the best way, in terms of performance, to do multiple insert/update statements, a PreparedStatement or Batch Updates?

2 4659

what is JDBC?

Wipro,

3 7558

how can we connect to db without using getConnection() method

4 7671

how many JDBC drivers ?name them?

CTS, Idea,

6 12679

what happens if connection is not closed?

CTS,

7 25180

Hi my doubt is that preparedStatement is a interface means which has no implemenation.plz go thru the code below String sql = "SELECT * FROM movies WHERE year_made = ?"; prest = con.prepareStatement(sql); prest.setInt(1,2002); ResultSet rs1 = prest.executeQuery(); Now setInt and executeQuery how it works since it is interface it does not have implementation how it works, how executeQuery returns result from database as executequery method has no implementation even in Statement interface.

Cybermate, Hexaware,

4 9674

HI ALL, How to Overcome "OutOfMemoryException"? when I am compiling source having more than 1000 LOC throwing this exception. Can any one give correct answer to my question? thx

5 6874

How to create Connection interface object because it is Interface , Interface is not instansiated?

Aptech, CTS, HCL,

9 19211

java based application for hospital management

3833

What is in Hibernate? How exactly inheritance of Object to Tables can be done? What is the benefits of discriminator?

AppLabs,

1 7481

how can connection with oracle10g with java

IonIdea,

3 12254

What is connection pooling? What Method and class used for Connection pooling in Java?

2 7696

what happen if we set JDBC string to NULL?

Sapient,

3396

any one can explain about policy file rule? when i connect database with applet then ther is no compile time error but the run time error is occureed.i.e access is denied.policy file rule is related to this problem.

2307

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Un-Answered Questions { JDBC }

What are common JDBC Exceptions?

981

What is JDBC DataSource and what are it’s benefits?

1217

What is jdbc connection interface?

1019

How to retrieve warnings in jdbc?

994

What is the difference between ojdbc6 and ojdbc7?

885

Why do we need a jdbcrowset like wrapper around resultset?

1252

password, is stored in as plain text. What can I do to protect my passwords?

974

What is java soft framework?

1004

Compare jdbc and odbc and how is jdbc required in this context.

938

What is the difference between setmaxrows(int) and setfetchsize(int)?

1059

How are jdbc statements used?

940

Write an sql to find all records having all upper case alphanumeric characters in a field ?

948

What is com mysql jdbc driver?

924

What is meant by dao?

939

What are the 4 types of jdbc drivers?

1017

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