Database connections of grids is done in Workspace. When you change the database connection of a grid, you display data from another source. Because the dimension names for the new database may differ from the default database, the administrator needs to prepare a mapping schema to maintain the integrity of the data structure. If the structure of the specified database connection differs from that of the current database connection, the report cannot repopulate. For information, see “Changing Financial Reporting Database Connections” in Oracle Hyperion Enterprise Performance Management Workspace User's Guide.