Choose Varchar in the Return Type field.

18-2 Oracle Fusion Middleware Administrators Guide for Oracle Business Intelligence Discoverer For more information, see the Oracle Fusion Middleware Users Guide for Oracle Business Intelligence Discoverer Plus. Using Discoverer with Oracle Web Cache Oracle Web Cache helps e-businesses improve Web site performance issues. Oracle Web Cache is a content-aware server accelerator that improves the performance, scalability and availability of Web sites that run on Oracle Fusion Middleware and Oracle databases version 9.2.0.7 or later. High accessibility is achieved at high speed by applying the latest caching techniques provided by Oracle Web Cache. By storing frequently accessed URLs in memory, Oracle Web Cache eliminates the need to repeatedly process requests for those URLs on the application Web server. Unlike legacy proxy servers that handle only static documents, Oracle Web Cache caches both static and dynamically generated content from one or more application Web servers. Because Oracle Web Cache is able to cache more content than legacy proxy servers, it provides optimal performance by greatly reducing the load on application Web servers. For more information, see the Oracle Fusion Middleware Users Guide for Oracle Business Intelligence Discoverer Plus and Oracle Fusion Middleware Configuration Guide for Oracle Business Intelligence Discoverer. Using Discoverer with Oracle Warehouse Builder Oracle Warehouse Builder OWB can generate Discoverer metadata. You can use OWB and Discoverer Bridge to create a Discoverer EUL in OWB’s metalayer, and then create a Discoverer export file .EEX file. The .EEX file can be imported into a Discoverer EUL using Discoverer Administrator for more information, see How to import EUL objects from a file using the Import Wizard . The Discoverer EUL retains the folder and item lineage from OWB. You can display the folder and item lineage from OWB by using a Discoverer Lineage workbook. To install the lineage workbook for use with Oracle Warehouse builder:

1.

Login to Discoverer Administrator as the Discoverer EUL schema owner. 2. Import the lineage.eex file. 3. Login to SQLPlus as the Discoverer EUL schema owner. For example: SQLPLUS myeulmyeulmyconnection 4. Run the lineage.sql file. For example: SQL start d:\ORACLE_HOME\discoverer\lineage.sql This script will ask you to input and verify the following: ■ the OWB URL Machine Name.Domain Name:Port For example, http:myserver.us.mycompany.com:7777 ■ the OWB Virtual path to mod_plsql the default is pls For example, pls ■ the OWB Database Access Descriptor DAD the default is portal30 For example, portal30