SQL Package

JDBC 4.0 API

JDBC 4.0 API is mainly divided into two package

1. java.sql
2. javax.sql

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java.sql package

This package include classes and interface to perform almost all JDBC operation such as creating and executing SQL Queries.

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Important classes and interface of java.sql package

classes/interface	Description
java.sql.BLOB	Provide support for BLOB(Binary Large Object) SQL type.
java.sql.Connection	creates a connection with specific database
java.sql.CallableStatement	Execute stored procedures
java.sql.CLOB	Provide support for CLOB(Character Large Object) SQL type.
java.sql.Date	Provide support for Date SQL type.
java.sql.Driver	create an instance of a driver with the DriverManager.
java.sql.DriverManager	This class manages database drivers.
java.sql.PreparedStatement	Used to create and execute parameterized query.
java.sql.ResultSet	It is an interface that provide methods to access the result row-by-row.
java.sql.Savepoint	Specify savepoint in transaction.
java.sql.SQLException	Encapsulate all JDBC related exception.
java.sql.Statement	This interface is used to execute SQL statements.

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javax.sql package

This package is also known as JDBC extension API. It provides classes and interface to access server-side data.

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Important classes and interface of javax.sql package

classes/interface	Description
javax.sql.ConnectionEvent	Provide information about occurence of event.
javax.sql.ConnectionEventListener	Used to register event generated by PooledConnection object.
javax.sql.DataSource	Represent the DataSource interface used in an application.
javax.sql.PooledConnection	provide object to manage connection pools.