JDBC 4.0 and Oracle JDeveloper for J2EE Development: A J2EE by Deepak Vohra

By Deepak Vohra

This booklet is a realistic reference consultant to utilizing Oracle JDeveloper IDE and JDBC 4.0 to improve J2EE data-driven functions. The e-book is appropriate for Java/J2EE and Oracle JDeveloper newbies. while you are a J2EE developer and need to take advantage of the JDeveloper IDE for J2EE improvement, this booklet is for you. JDeveloper builders who're new to J2EE also will enjoy the booklet. so much J2EE purposes have a database part and the booklet is specifically suited to database-based J2EE improvement in Oracle JDeveloper. you can even use this publication while you are drawn to studying how you can make the most of the recent beneficial properties provided in JDBC 4.0 for Java/J2EE improvement.

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Reader methods, readNString() and readNClob() have been added to the SQLInput interface to read the NCHAR, NVARCHAR, LONGNVARCHAR, and NCLOB values. Writer methods, writeNClob() and writeNString() have been added to the SQLOutput interface to write the NCHAR, NVARCHAR, LONGNVARCHAR, and NCLOB values. 0, support for BLOB and CLOB SQL data types have been enhanced. Clob objects, methods such as createBlob() and createClob() have been added to the Connection interface. In the PreparedStatement and CallableStatement interfaces, setBlob() method has been overloaded to set the Blob values from an InputStream, and setClob() method has been overloaded to set the Clob values from a Reader.

The SQLClientInfoException is generated, if one or more client info properties could not be set on a Connection. The SQLClientInfoException also lists the client info properties, which were not set. Some databases that do not allow multiple client info properties to be set atomically can generate the SQLClientInfoException exception after one or more client info properties have been set. The client info properties that were not set can be retrieved by using the getFailedProperties() method. Connection Management Connection pooling improves the performance and scalability of the connections by providing a cache of the connections that are reusable across client sessions.

NOTATION_DECLARATION Specifies a notation declaration. START_DOCUMENT Specifies the start of a document START_ELEMENT Specifies the start of an element. END_ELEMENT Specifies the end of an element. ENTITY_DECLARATION Specifies an entity declaration. ENTITY_REFERENCE Specifies an entity reference. NAMESPACE Specifies a namespace declaration. SPACE Specifies an ignorable white space. println("Element Local Name: "+xmlStreamReader. println("Element Namespace:"+xmlStreamReader. getNamespaceURI()); The attribute count in an element is obtained by using the getAttributeCount() method.

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