Consider the Recreation relation in the exhibit. A data operation that changes one of the tuples
for Student_ID 1003 must be performed. It is necessary to change one of the activities from
swimming to tennis. The Student_ID and Activity attributes make up the primary key for the
Recreation relation. All related information must be altered, as well. Which SQL statement or
statements would best accomplish this?

In a relational database, which term describes a single table consisting of rows and columns?
Which relational algebraic operation is used to select specific columns (attributes) from a
relation?
Consider the following SQL statement and the Orders relation shown in the exhibit:

How many records should be returned?
The creation of intermediate entities occurs during the logical database design phase for an
enterprise. It is used to resolve which types of relationships?
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