Examlex
The principal difference between an entity and a table is that you can express a relationship between entities without using foreign keys.
Dotting
The action of marking or decorating with small drops or spots, often used in various art and design contexts.
Mammal
A class of warm-blooded vertebrate animals characterized by the presence of mammary glands, which in females produce milk for feeding their young.
Unusual
Something that is not common, ordinary, or expected, often arousing interest due to its difference.
Abandon
To leave completely and finally; forsake utterly; desert.
Q4: A "simple object" can contain only simple
Q9: Which of the following is not a
Q11: A multilevel index that allows both sequential
Q21: When running a correlated subquery,the DBMS always
Q23: Group attributes are composites of other attributes.
Q26: The first attribute of a subtype object
Q40: A defining requirement for Boyce-Codd Normal Form
Q54: Normalization is an advantage for a read-only
Q61: Functional dependencies can involve groups of attributes.
Q77: To eliminate multivalued dependencies,normalize your tables so