Follow these steps to create the mapping:
- Import source definitions. Use the Source Analyzer to connect to the sources and import the source definitions.
- Create or import target definitions. Use the Warehouse Designer to define relational, flat file, or XML targets to receive data from sources. You can import target definitions from a relational database or a flat file, or you can manually create a target definition.
- Create the target tables. If you add a target definition to the repository that does not exist in a relational database, you need to create target tables in your target database. You do this by generating and executing the necessary SQL code within the Warehouse Designer.
- Design mappings. Once you have source and target definitions in the repository, you can create mappings in the Mapping Designer. A mapping is a set of source and target definitions linked by transformation objects that define the rules for data transformation. A transformation is an object that performs a specific function in a mapping, such as looking up data or performing aggregation.
- Create mapping objects. Optionally, you can create reusable objects for use in multiple mappings. Use the Transformation Developer to create reusable transformations. Use the Mapplet Designer to create mapplets. A mapplet is a set of transformations that may contain sources and transformations.
- Debug mappings. Use the Mapping Designer to debug a valid mapping to gain troubleshooting information about data and error conditions.
- Import and export repository objects. You can import and export repository objects, such as sources, targets, transformations, mapplets, and mappings to archive or share metadata.