JDBC perguntas e respostas de entrevista

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Pergunta 26. What is the advantage of denormalization?

Data denormalization is reverse procedure, carried out purely for reasons of improving performance. It maybe efficient for a high-throughput system to replicate data for certain data.

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Pergunta 27. How do you handle your own transaction?

Connection Object has a method called setAutocommit ( boolean flag) . For handling our own transaction we can set the parameter to false and begin your transaction . Finally commit the transaction by calling the commit method.

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Mais uteis segundo os usuarios:

What is JDBC? Describe the steps needed to execute a SQL query using JDBC.
What are the steps involved in establishing a JDBC connection?
Is JDBC-ODBC bridge multi-threaded?
Does the JDBC-ODBC Bridge support multiple concurrent open statements per connection?
What are the different driver types available in JDBC?

JDBC vs Hibernate	JDBC vs JPA	JDBC 3.0 vs JDBC 4.0

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JDBC perguntas e respostas de entrevista

Diferencas relacionadas

Pergunta 26. What is the advantage of denormalization?

Pergunta 27. How do you handle your own transaction?

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