Examlex
An entity supertype can have disjoint or overlapping entity subtypes.
Q6: SQL supports the conditional execution of procedures
Q12: What is a subquery? When is it
Q12: The _ statement in SQL combines rows
Q13: The _ model uses the term connectivity
Q24: The _ is actually a system-created database
Q37: Assume you are using the INTERSECT operator
Q63: The _ statement combines rows from two
Q79: After the initial declarations in a study,the
Q92: To list the contents of a table,you
Q100: Only numeric data types can be added