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A starflake schema is a combination of a star schema and a snowflake schema. Starflake schemas are snowflake schemas where only some of the dimension tables have been denormalized. firstname.lastname@example.org
The schema is the physical arrangement of the data as it appears in the DBMS. The subschema is the logical view of the data as it appears to the application program.
Physical schema,logical schema and sub schemas
XML Schema is an XML-based alternative to DTD.An XML schema describes the structure of an XML document.The XML Schema language is also referred to as XML Schema Definition (XSD).An XML schema is a description of a type of XML document, typically expressed in terms of constraints on the structure and content of documents of that type, above and beyond the basic syntactical constraints imposed by XML itself.
Schema is a noun.
A catalog is a set of tables which contains the definitions or descriptions of the database structure and its constraints. For example it could store the structure of each file +Type and Format of each data item stored in the file. A catalog is a type of schema and a schema is what defines a data elements and their interrelationships.
The spelling "schema" means a diagram, outline or model. The similar word "scheme" is a plan, layout, or combination.
Schema's are organized patterns of action or thought that people construct to interpret their experiences. For example (An infants grasping actions and sucking responses are early behavioral schemes, or concepts.
Schema is structure you created for your tables in My SQL
There is need for mappings between schema levels for visualization and schema matching. The mappings between schema levels helps in the different types of transformation.