INTERVIEW QUESTIONS J2EE JDBC DETAILS

Question: What is the difference between Resultset and Rowset?

Answer: RowSets are part of JDBC 2.0 API, and there are quite a few implementations to suit your needs (CachedRowSet, JDBCRowSet, WebRowSet). Essentially a row set is a JavaBean that contains database data. The implementation can store the data offline, or it can simply wrap a connection to make a result set look like a JavaBean. You could even use a row set to access data communicating over HTTP to a servlet, which provides the data for the bean.


Submitted by Srinivas Vemula ([email protected])

RowSets are part of JDBC 2.0 API, and there are quite a few implementations to suit your needs (CachedRowSet, JDBCRowSet, WebRowSet). Essentially a row set is a JavaBean that contains database data. The implementation can store the data offline, or it can simply wrap a connection to make a result set look like a JavaBean. You could even use a row set to access data communicating over HTTP to a servlet, which provides the data for the bean.


Submitted by Srinivas Vemula ([email protected]) Source: CoolInterview.com

A ResultSet maintains a connection to a database and because of that it can’t be serialized and also we cant pass the Resultset object from one class to other class across the network.

RowSet is a disconnected, serializable version of a JDBC ResultSet and also the RowSet extends the ResultSet interface so it has all the methods of ResultSet. The RowSet can be serialized because it doesn’t have a connection to any database and also it can be sent from one class to another across the network. Source: CoolInterview.com

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