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- Data_transformation abstract "This article is about data transformation in computer science (metadata). For statistical application, see data transformation (statistics).In metadata and data warehouse, a data transformation converts a set of data values from the data format of a source data system into the data format of a destination data system.Data transformation can be divided into two steps: data mapping maps data elements from the source data system to the destination data system and captures any transformation that must occur code generation that creates the actual transformation programData element to data element mapping is frequently complicated by complex transformations that require one-to-many and many-to-one transformation rules.The code generation step takes the data element mapping specification and creates an executable program that can be run on a computer system. Code generation can also create transformation in easy-to-maintain computer languages such as Java or XSLT.A master data recast is another form of data transformation where the entire database of data values is transformed or recast without extracting the data from the database. All data in a well designed database is directly or indirectly related to a limited set of master database tables by a network of foreign key constraints. Each foreign key constraint is dependent upon a unique database index from the parent database table. Therefore, when the proper master database table is recast with a different unique index, the directly and indirectly related data are also recast or restated. The directly and indirectly related data may also still be viewed in the original form since the original unique index still exists with the master data. Also, the database recast must be done in such a way as to not impact the applications architecture software.When the data mapping is indirect via a mediating data model, the process is also called data mediation.".
- Data_transformation wikiPageID "4080917".
- Data_transformation wikiPageRevisionID "604231772".
- Data_transformation hasPhotoCollection Data_transformation.
- Data_transformation subject Category:Metadata.
- Data_transformation type Genre.
- Data_transformation type MusicGenre.
- Data_transformation type TopicalConcept.
- Data_transformation type Concept.
- Data_transformation comment "This article is about data transformation in computer science (metadata).".
- Data_transformation label "Data transformation".
- Data_transformation label "Конвертация данных".
- Data_transformation sameAs Transformasi_data.
- Data_transformation sameAs m.0bh1bh.
- Data_transformation sameAs Q4272815.
- Data_transformation sameAs Q4272815.
- Data_transformation wasDerivedFrom Data_transformation?oldid=604231772.
- Data_transformation isPrimaryTopicOf Data_transformation.