About connecting to Discoverer What is the Oracle BI Discoverer architecture?

Introducing Oracle BI Discoverer 1-9

2. If the Choose Connection area is displayed, do one of the following:

■ Select a connection name in the Connection column to start Discoverer Viewer. ■ Create a private connection to store database login details click Create Connection to add a private connection; then, select the new connection. ■ Use the Connect Directly area to enter login details, then click Go to start Discoverer Viewer.

3. If only the Connect Directly area is displayed, enter login details and click OK.

Discoverer displays the Worksheet List page, which enables you to select a worksheet to open. You can now begin to analyze data using Discoverer’s powerful business intelligence analysis tools. Notes ■ For more information about how to create a private connection, see Oracle Fusion Middleware Users Guide for Oracle Business Intelligence Discoverer Plus. ■ For more information about starting Discoverer Viewer, see Section 2.11, How to start Discoverer Viewer over HTTP. ■ For more information about starting Discoverer Plus, see Section 2.6, About running Discoverer Plus over HTTP for the first time on a client machine. ■ You can use the checkdiscoverer utility to verify a Discoverer configuration and report on failures or anomalies for more information about the checkdiscoverer utility, see Section 11.2, What is the checkdiscoverer utility? ■ Discoverer Plus OLAP has its own diagnostics utility for more information, see Section 5.6, Configuration diagnostic utility for Discoverer Plus OLAP

1.6 About connecting to Discoverer

Discoverer end users connect to Discoverer in the following ways: 1-10 Oracle Fusion Middleware Configuration Guide for Oracle Business Intelligence Discoverer ■ By using Oracle BI Discoverer Desktop, end users log in using their database user name and password. For more information, see Oracle Fusion Middleware Users Guide for Oracle Business Intelligence Discoverer Desktop. ■ By using Oracle BI Discoverer Plus or Oracle BI Discoverer Viewer, end users store login information in private connections, and then select a connection. For more information, see Oracle Fusion Middleware Users Guide for Oracle Business Intelligence Discoverer Plus or Oracle Business Intelligence Discoverer Viewer Online Help. Discoverer middle-tier managers can also provide public connections that enable Discoverer Plus and Discoverer Viewer end users to start Discoverer automatically without having to enter login details. For more information, see Section 3.6, How to create public connections. 1.7 What is the Oracle BI Discoverer architecture? Oracle BI Discoverer has a multitier architecture that takes advantage of the distributed nature of the Web environment. While it is possible to install all tiers of the Oracle BI Discoverer architecture on the same machine, we recommend distributing your installation over multiple machines, to maximize performance and reliability. Figure 1–5 Discoverer’s multitier architecture Note : Multiple application servers can be installed on the same machine. Discoverer’s multitier architecture comprises: ■ The Discoverer client tier, from which Web browsers access Discoverer. For more information, see Section 1.8, About the Discoverer client tier. ■ The Discoverer middle tier, which includes one or more Oracle BI Discoverer installations, the Oracle Internet Directory and the two database schemas that Discoverer requires the PStore and Portlet Provider schemas. For more information, see Section 1.9, About the Discoverer middle tier. ■ The Discoverer database tier, which contains data and metadata for more information, see Section 1.10, About the Discoverer database tier. Introducing Oracle BI Discoverer 1-11 Notes ■ For more information about configuring Discoverer on multiple machines, see Chapter 6, Managing Discoverer in a Multi-Machine or Multi-Instance Environment.

1.8 About the Discoverer client tier