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 9257

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

2 4776

what is JDBC?

Wipro,

3 7687

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

4 7817

how many JDBC drivers ?name them?

CTS, Idea,

6 12874

what happens if connection is not closed?

CTS,

7 25436

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 9808

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 7025

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

Aptech, CTS, HCL,

9 19518

java based application for hospital management

3879

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

AppLabs,

1 7580

how can connection with oracle10g with java

IonIdea,

3 12419

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

2 7795

what happen if we set JDBC string to NULL?

Sapient,

3455

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.

2356

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Un-Answered Questions { JDBC }

What is the feature of jdbc v4?

1253

What are the exceptions in jdbc?

1006

How many categories of jdbc drivers are there?

963

What is odbc jdbc?

1053

Is jdbc faster than odbc?

971

What does it mean to "materialize" data?

1065

Why do I have to reaccess the database for Array, Blob, and Clob data?

1147

What is a connection string used for?

1016

What are the common tasks of JDBC?

1048

How do I find whether a parameter exists in the request object?

967

What protocol does jdbc use?

1022

Where is jdbc used?

1042

What is jdbc and explain jdbc architecture?

1070

What is the query used to display all tables names in SQL Server (Query analyzer)?

1116

What is the reason why we need a jdbcrowset like the wrapper around resultset?

1024

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