Requiring a CustomerID to exist in a Primary table before it… Requiring a CustomerID to exist in a Primary table before it can exist in a foreign table is an example of: Read Details
A student can attend five classes, each with a different pro… A student can attend five classes, each with a different professor. Each professor has 30 students. The relationship of students to professors is a ________ relationship. Read Details
The actions that must be taken to ensure data integrity is m… The actions that must be taken to ensure data integrity is maintained during multiple simultaneous transactions are called ________ actions. Read Details
Which of the following violates the atomic property of relat… Which of the following violates the atomic property of relations? Read Details
The property by which subtype entities possess the values of… The property by which subtype entities possess the values of all attributes of a supertype is called: Read Details
A domain definition consists of all of the following compone… A domain definition consists of all of the following components EXCEPT: Read Details
________ is a component of the relational data model include… ________ is a component of the relational data model included to specify business rules to maintain the integrity of data when they are manipulated. Read Details
External data sources present problems for data quality beca… External data sources present problems for data quality because: Read Details
________ is a component of the relational data model include… ________ is a component of the relational data model included to specify business rules to maintain the integrity of data when they are manipulated. Read Details