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 9020

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

2 4533

what is JDBC?

Wipro,

3 7440

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

4 7475

how many JDBC drivers ?name them?

CTS, Idea,

6 12486

what happens if connection is not closed?

CTS,

7 24848

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 9487

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 6644

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

Aptech, CTS, HCL,

9 18884

java based application for hospital management

3777

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

AppLabs,

1 7380

how can connection with oracle10g with java

IonIdea,

3 12101

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

2 7564

what happen if we set JDBC string to NULL?

Sapient,

3339

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.

2239

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Un-Answered Questions { JDBC }

How do java applications access the database using jdbc?

967

Can we have foreign key reference to a non primary key column ?

911

How can we retrieve data from the resultset?

917

What are the basic exceptions in jdbc?

1024

How vendor Naming registry supports JNDI?

2126

Which database is used with java?

905

What is sqlwarning?

964

What are the measures to connect to the db using jdbc?

942

Is jpa faster than jdbc?

842

How can you create jdbc statements?

912

Which jdbc drivers will run your program?

873

Which is faster jdbc or odbc?

846

explain about special characters?

924

Is jdbc a protocol?

880

What do you mean by jdbc batch processing and what are the advantages of using jdbc batch processing?

941

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