What is the SQL operator (i.e., keyword) used in conjunction with pattern matching?
QUESTION: “What is the SQL operator (i.e., keyword) used in conjunction with pattern matching?”
Tag: Richard Scamell
With which type of constraint is the specification of a deletion rule associated?
QUESTION: “With which type of constraint is the specification of a deletion rule associated?”
With which of the four types of constraints in Exercise 4 is a requirement that an attribute not contain
QUESTION: With which of the four types of constraints in Exercise 4 is a requirement that an attribute did not contain a null value associated?
What is the purpose of the cross-referencing design?
QUESTION: “What is the purpose of the cross-referencing design?”
What is the difference between a total category and a partial category?
QUESTION: “What is the difference between a total category and a partial category”?
How does categorization differ from specialization?
QUESTION: “How does categorization differ from specialization”?
What is the difference between a specialization hierarchy and a specialization lattice?
QUESTION: “What is the difference between a specialization hierarchy and a specialization lattice?”
Is the use of the “set null” rule applicable to an identifying relationship type? If yes, explain. If no, definitely explain.
QUESTION: Is the use of the “set null” rule applicable to an identifying relationship type? If yes, explain. If no, definitely explain.
Give examples of types of business rules that are not reflected in a Presentation Layer ER diagram?
QUESTION: Give examples of types of business rules that are not reflected in a Presentation Layer ER diagram?