See http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/sqldev-releasenotes-v4-1925251.html for the details.
The OLAP functionality is mentioned toward the bottom of the web page.
- Manage and enable cube and dimension MV's.
- Manage data security.
- Create and edit nested measure folders (i.e. measure folders that are children of other measure folders)
- Create and edit Maintenance Scripts
- Manage multilingual support for OLAP Metadata objects
- Use the OBIEE plugin or the Data Validation plugin
- New Calculation Expression editor for calculated measures. This allows the user to nest different types to calculated measures easily. For instance a user can now create a Moving Total of a Prior Period as one calculated measure. In AWM, it would have required a user to create a Prior Period first and then create a Moving Total calculated measure which referred to the Prior Period measure. Also the new Calculation Expression editor displays hypertext helper templates when the user selects the OLAP API syntax in the editor.
- Support for OLAP DML command execution in the SQL Worksheet. Simply prefix OLAP DML commands by a '~' and then select the execute button to execute them on the SQL Worksheet. The output of the command will appear in the DBMS Output Window if it is opened, or the Script Output Window if the user has executed 'set serveroutput on' before executing the DML command.
- Improved OLAP DML Program Editor integrated within the SQL Developer framework.
- New diagnostic reports in the SQL Developer Report navigator.
- Ability to create a fact view with a measure dimension (i.e. "pivot cube"). This functionality is accessible from the SQL Developer Tools-OLAP menu option.
- Cube scripts have been renamed to Build Specifications and are now accessible within the Create/Edit Cube dialog. The Build Specifications editor there, is similar to the calculation expression editor as far as functionality.