Sun Java System Application Server Enterprise Edition 8.1 2005Q2 Administration Guide

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## JDBC Resources

To store, organize, and retrieve data, most applications use relational databases. J2EE applications access relational databases through the JDBC API.

A JDBC resource (data source) provides applications with a means of connecting to a database. Typically, the administrator creates a JDBC resource for each database accessed by the applications deployed in a domain. (However, more than one JDBC resource can be created for a database.)

To create a JDBC resource, specify a unique JNDI name that identifies the resource. (See the section JNDI Names and Resources.) Expect to find the JNDI name of a JDBC resource in `java:comp/env/jdbc` subcontext. For example, the JNDI name for the resource of a payroll database could be `java:comp/env/jdbc/payrolldb`. Because all resource JNDI names are in the `java:comp/env` subcontext, when specifying the JNDI name of a JDBC resource in the Admin Console, enter only `jdbc/`name. For example, for a payroll database specify `jdbc/payrolldb`.

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