SAS/Warehouse Administrator Metadata API- P12: The operating system and SAS version that are associated with a given host are now available through the WHHOST property. For example, you can write a SAS/Warehouse Administrator add-in that reads the host metadata that is associated with a given data store and then uses these values to generate code that is appropriate for the operating system and SAS version. | 52 What Is a Metadata Type A Chapter 3 What Is a Metadata Type A metadata type is a template that models the metadata for a particular kind of object in an application. For example the metadata type WHDETAIL models the metadata that is maintained for a detail table in SAS Warehouse Administrator. WHDETAIL s parameter list matches the items of metadata maintained for a detail table such as ID NAME COLUMNS and INPUT SOURCES. A three-level metadata identifier is passed to methods that are used to read or write metadata. The type ID in this identifier such as WHDETAIL specifies a metadata type that describes the content of the metadata to be read or written. You can use all metadata types with the read methods. See Writing Metadata on page 59 for a discussion of metadata types and write methods. Metadata Repository Types You can store an application s metadata in a repository. A metadata repository type is a template that models the metadata for a particular kind of metadata repository. For example the metadata repository type WHDWENV models the metadata for an environment repository in SAS Warehouse Administrator. WHDWENV s parameter list matches the items of metadata that are maintained for an environment such as ID NAME DESCRIPTION and LIBRARY. Repository types are used with the Repository Methods that are described in Index to Metadata API Methods on page 16. These methods are used to attach to a given repository so that its metadata can be read or written. SAS Warehouse Administrator has a partitioned metadata repository. Each primary repository stores metadata that is shared by all warehouses in an environment. Each secondary repository stores metadata for an individual warehouse in an environment. Accordingly there are two metadata repository types for SAS Warehouse Administrator WHDWENV specifies the metadata repository type for a data warehouse environment. For details see WHDWENV on page 104. WHDW specifies the metadata repository .
