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 ?

954

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

933

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

907

Explain the difference between inner and outer join ?

948

What are temp tables ?

931

What is database deadlock ?

1067

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

912

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

909

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

917

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 ?

936

What is database deadlock ? How can we avoid them?

985

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

917

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

875

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

848

Does sql allow null values ?

912

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Un-Answered Questions { JDBC }

What are the three parts of a jdbc url?

960

Is jdbc a middleware?

890

How to check jdbc driver version in sql server?

897

What is the use of jdbc api?

924

What is an SQL Locator?

1033

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.

2236

What is jdbc odbc in java?

981

How many types of statements are there in jdbc?

866

Is it possible to connect to multiple databases? Using single statement can we update or extract data from two or three or many databases?

1026

What is the function of setautocommit?

1147

How does jdbc driver work?

925

Why we use jdbc instead of odbc?

916

What do you mean by two phase commits?

987

What is an escape syntax?

924

What is the use of jdbc?

941

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