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

JDBC Interview Questions

Questions Answers Views Company eMail

How can we disable a constraint ?

1077

Does sql allow null values ? Can we use it within where clause ?

1036

Write an sql to find all records having all numeric characters in a field ?

1030

Explain the difference between inner and outer join ?

1107

What are temp tables ?

1021

What is database deadlock ?

1294

What should be done for auto generating primary key id in a table ?

1017

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

1030

What's the benefit for specifying constraints like not null, primary key explicitly instead of specifying it against the column ?

1026

If you are given a choice to implement the code to either insert a record or update if already exist, which approach will you follow ?

1055

What is database deadlock ? How can we avoid them?

1128

Describe the steps needed to execute a sql query using jdbc.

1033

Which constraint cannot be specified as an explicit constraint and should be specified with the column only ?

987

What is jdbc? Describe the steps needed to execute a sql query using jdbc.

994

Does sql allow null values ?

1034

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Un-Answered Questions { JDBC }

Describe how the jdbc application works.

1083

State the three different ways in which you can create a table?

1037

How we store procedure in oralce for callable statements in jdbc

2388

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

1034

What is isolation level? How to set it?

2312

How java can be connected to a database?

1162

How do I write Greek ( or other non-ASCII/8859-1 ) characters to a database?

1040

What is ODBC and JDBC? How do you connect the Database?

1088

Is jdbc connection secure?

1012

How to set the attribute concurrency in resultset?

972

What is the use of the statement in jdbc?

979

Why do you use a data source object for a connection?

1082

What is an SQL Locator?

1200

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

1124

What is Apache DBCP API?

1060

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