The DEFINE FILE_ELEMENT command creates a file element. Before you issue the DEFINE FILE_ELEMENT command, you must define and set a context. The SHOW CONTEXT command indicates whether you have completed these steps. You control file element definitions as soon as you define them. To do this, issue the following commands before you define a file element: 1. DEFINE PARTITION, which creates a partition 2. DEFINE CONTEXT, which associates this partition with a specific context 3. SET CONTEXT, which identifies this context as the current context and implicitly controls all subsequent definitions Since a file element is a controlled element, the DEFINE FILE_ ELEMENT command creates the initial version of the file element. The RESERVE and REPLACE commands create new versions. The STORETYPE clause indicates whether or not the file is stored internally (in Oracle CDD/Repository) or externally. If you do not specify STORETYPE, the default is external. If you add, change, or delete a property from the file element, the property you specify must be a defined or inherited property for the file element's type. See the Oracle CDD/Repository Information Model, Volume I for a list of these properties. Errors occur if you do not specify the MCS_STOREDIN property for a file element whose STORETYPE is EXTERNAL. CDO requires this property for external files.