True or False
Database Management System (DBMS) is the technical term for a database.
T F
An ER model is (or ideally should be) independent of a specific DBMS.
T F
Inserting a date value into a table’sFirstNamecolumn would violate Entity Integrity.
T F
R × S (cross product) results in a relation that has at least as many tuples as relation R.
T F
R ? S (natural join) results in a relation that has at least as many tuples as relation R.
T F
The Intersection of two relations can have more records than their Union.
T F
A relation can only have one candidate key.
T F
Theclosureof an attribute X is the set of other attributes that can be determined from X.
T F
A relation that is in 3rdnormal form is also in 2ndnormal form.
T F
DML (e.g., the CREATE command in SQL) is used to define a database’s schema.
T F
In SQL, the UPDATE command can be used to modify a previously created table.
T F
The GROUP BY clause is (logically) evaluatedafterthe WHERE clause.
T F
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