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 ?

956

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

935

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

909

Explain the difference between inner and outer join ?

953

What are temp tables ?

933

What is database deadlock ?

1071

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

914

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

912

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

919

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 ?

940

What is database deadlock ? How can we avoid them?

988

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

919

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

878

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

851

Does sql allow null values ?

914

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Un-Answered Questions { JDBC }

What is sqlwarning?

964

What is drivermanager in jdbc?

918

What is jdbc driver manager?

900

How are jdbc statements used?

891

What is serialization and deserialization in java programming?

918

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

909

How many types of jdbc drivers are there?

951

What is jdbc driver in java?

881

What is an SQL Locator?

1035

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

878

What does executeupdate return in jdbc?

926

What is preparedstatement in jdbc?

906

Give an example for execution of sql statement.

963

What is the full form of jdbc and what is its purpose?

931

What are the steps involved in establishing a connection using jdbc in java?

927

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