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 ?

1026

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

980

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

972

Explain the difference between inner and outer join ?

1034

What are temp tables ?

980

What is database deadlock ?

1193

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

975

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

985

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

970

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 ?

1001

What is database deadlock ? How can we avoid them?

1057

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

984

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

929

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

931

Does sql allow null values ?

972

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Un-Answered Questions { JDBC }

How can I retrieve a String or other object type without creating a new object each time?

1189

How do I connect to jdbc?

950

What is represented by the connection object?

1082

What is jdbc url for mysql?

1032

What is an encrypted internet connection?

935

What is the latest version of JDBC? What are the new features added in that?

999

Write a program JDBCcode forfetching student database with SQL.

1121

Explain the JDBC Architecture?

1019

What is database deadlock ? How can we avoid them?

1057

Discuss the procedure of retrieving warnings?

984

What are the jdbc drivers in java?

1072

What is the difference between ojdbc6 and ojdbc7?

885

What is difference between jdbc and odbc?

1014

Is possible to open a connection to a database with exclusive mode with JDBC?

967

What are the advantages of using jdbc datasource?

987

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