"logical" nach Englisch mit Beispielen - Kollokationen-Wörterbuch Englisch
- This chapter discusses these forms of the logical schema and also shows how the data structures might be described to the database.
- Indeed the means by which record occurrences are related physically is irrelevant to the logical schema.
- Its format may also be different from the logical schema.
- But whatever the description given to the user, the underlying data described by the logical schema will be the same.
- But applications must provide a logical schema that defines how the file format should be interpreted.
- A logical schema is a data model of a specific problem domain expressed in terms of a particular data management technology.
- The physical schema is a particular implementation of a logical schema.
- This eliminates the need to normalize data sets in the logical schema.
- The logical schema was the way data were represented to conform to the constraints of a particular approach to database management.
- Describing the logical schema, however, still did not describe how physically data would be stored on disk drives.
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