Examlex
Which is the primary key(s) in the following STUDENT_GRADE(StudentID, CourseID, Grade) ?
Newborn
refers to an infant from birth to about 2 months of age.
5 Years Old
A 5 years old is a child who has reached the age of five, a period characterized by rapid development in language, cognitive skills, and social interaction, typically attending preschool or kindergarten.
Infant Child
Refers to a very young child or baby, typically under one year of age.
Domestic Chores
Tasks and activities performed within the home, such as cleaning, cooking, and maintenance, typically for the upkeep and management of the household.
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