WGU C170 - Data Management - Applications STUDY NOTES
Domain In data modeling, the construct used to organize and describe an attribute's set of possible values. Primary key (PK) An identifier composed of one or more attributes that uniquely identifies a row. Also, a candidate key selected as a unique entity identifier. A minimal superkey. Key One or more attributes that determine other attributes. Determination The role of a key. In the context of a database table, the statement "A determines B" indicates that knowing the value of attribute A means that the value of attribute B can be looked up. Determinant
Escuela, estudio y materia
- Institución
- WGU C170 - DATA MANAGEMENT APPLICATIONS
- Grado
- WGU C170 - DATA MANAGEMENT APPLICATIONS
Información del documento
- Subido en
- 10 de febrero de 2024
- Número de páginas
- 22
- Escrito en
- 2023/2024
- Tipo
- Examen
- Contiene
- Preguntas y respuestas
Temas
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data modeling
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wgu c170 data management applications
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the context of a database table
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