Data Management Foundation C175 WGU, Exam Review Questions & Answers, 100% Accurate. Graded A+ 2024
Associative Entity - -An associative entity is an element of the entity-relationship model. All relationships for the associative entity should be many. Attribute - -An attribute is a property or characteristic of an entity. Binary relationship - -A binary relationship is a relationship between two entity types. Candidate Key - -Is any column or a combination of columns that can qualify as unique key in database. Cardinality - -Cardinality represents the maximum number of entities that can be involved in a particular relationship. Cartesian product - -Usually the result of a missing join condition or a method of expanding the data of 1 table by the number of rows in the second table. Cascade Delete - -Will delete all records that reference the primary key column subquery - -Returns a single column of one or more values. data encryption - -When data is encrypted, it is changed, bit by bit or character by character, into a form that looks totally garbled. It can and must be reconverted, or decrypted, back to its original form to be of use.
Document information
- Uploaded on
- October 18, 2023
- Number of pages
- 8
- Written in
- 2023/2024
- Type
- Exam (elaborations)
- Contains
- Questions & answers