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WGU C175 Study Notecards

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Flat Files ✔✔a file having no internal hierarchy Hashed Files ✔✔A file that has been encrypted for security purposes. Heap File ✔✔An unsorted set of records. Information ✔✔The trans ... formation of raw data into useful facts. Punch Card ✔✔A card that is perforated and can hold commands or data. Structured Data ✔✔Information with a high degree of organization. Unstructured Data ✔✔Information that does not have structure (such as text) Binary Relationship ✔✔A relationship between two entity types. Unary Relationship ✔✔An associate occurrence of an entity type with other occurrences of the same entity type. Cardinality ✔✔The maximum number of entities that can be involved in a particular relationship. E-R Model *E-R = Entity - Relationship ✔✔Diagram of entities together with their attributes and the relationship among them. Intersection Data ✔✔It is data that describes a many-to-many relationship [Show More]

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