3-2 Oracle Fusion Middleware Configuring and Managing JDBC Data Sources for Oracle WebLogic Server
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Multi data sources—A multi data source is an abstraction around a group of generic data sources that provides load balancing or failover processing. See
Section 5, Configuring JDBC Multi Data Sources.
3.3 Creating a JDBC Data Source
You can create JDBC data sources in your WebLogic domain using the Administration Console or the WebLogic Scripting Tool WLST:
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Create a JDBC Data Source in the Oracle WebLogic Server Administration Console Help.
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The sample WLST script SAMPLES_ HOME\server\examples\src\examples\wlst\online\jdbc_data_
source_creation.py , where SAMPLES_HOME refers to the main examples
directory of your WebLogic Server installation. See WLST Online Sample Scripts in Oracle WebLogic Scripting Tool
The following sections provide an overview of the basics steps used in the data source configuration wizard to create a data source using the Administration console:
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Section 3.3.1, JDBC Data Source Properties
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Section 3.3.2, Configure Transaction Options
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Section 3.3.3, Configure Connection Properties
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Section 3.3.4, Test Connections
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Section 3.3.5, Target the Data Source
3.3.1 JDBC Data Source Properties
JDBC Data Source Properties include options that determine the identity of the data
source and the way the data is handled on a database connection.
3.3.1.1 Data Source Names
JDBC data source names are used to identify the data source within the WebLogic domain. For system resource data sources, names must be unique among all other
JDBC system resources, including data sources and multi data sources. To avoid naming conflicts, data source names should also be unique among other configuration
object names, such as servers, clusters, and JMS queues, topics, and servers. For JDBC application modules scoped to an application, data source names must be unique
among JDBC data sources and multi data sources that are similarly scoped.
3.3.1.2 JNDI Names
You can configure a data source so that it binds to the JNDI tree with a single or multiple names. You can use a multi-JNDI-named data source in place of legacy
configurations that included multiple data sources that pointed to a single JDBC connection pool. For more information, see rss
3.3.1.3 Selecting a Database Type
Select a DBMS. For information about supported databases, see Supported Database Configurations in System Requirements and Supported Platforms for Oracle WebLogic
Server at http:www.oracle.comtechnologysoftwareproductsiasfilesfus
ion_certification.html
Configuring JDBC Data Sources 3-3
3.3.1.4 Selecting a JDBC Driver
When creating a JDBC data source using the Administration Console, you are prompted to select a JDBC driver class. The Administration Console provides most of
the more common driver class names and in most cases tries to help you construct the URL as required by the driver. You should verify, however, that the URL is as you
want it before asking the console to test it. The driver you select must be in the classpath on all servers on which you intend to deploy the data source. Some but not
all JDBC drivers listed in the Administration Console are shipped andor are already in the classpath with WebLogic Server:
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Oracle Thin Driver
– Oracle Thin Driver XA
– Oracle Thin Driver non-XA
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Third-party JDBC drivers see Chapter 12, Using JDBC Drivers with WebLogic
Server :
– MySQL non-XA
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Oracle Type 4 JDBC Drivers from DataDirect for the following database management systems see in Type 4 JDBC Drivers for Oracle WebLogic Server:
– DB2
– Informix
– Microsoft SQL Server
– Sybase
All of these drivers are referenced by the weblogic.jar manifest file and do not need to be explicitly defined in a servers classpath.
When deciding which JDBC driver to use to connect to a database, you should try drivers from various vendors in your environment. In general, JDBC driver
performance is dependent on many factors, especially the SQL code used in applications and the JDBC driver implementation.
For information about supported JDBC drivers, see Supported Database Configurations in System Requirements and Supported Platforms for Oracle WebLogic
Server at http:www.oracle.comtechnologysoftwareproductsiasfilesfus
ion_certification.html .
3-4 Oracle Fusion Middleware Configuring and Managing JDBC Data Sources for Oracle WebLogic Server
3.3.2 Configure Transaction Options
