Two of the three tables in his database should have foreign keys that link to primary keys in one of the other tables. That way he can join the tables together.
Answer:
Starting from root, recursively traverse the min-heap. Once we find a key with value less than our X, we know that every key in subtree of that key will be also smaller than our X. Otherwise, we should keep traversing.
Explanation:
The complexity of this algorithm will be O(N) where N is the number of keys in our min-heap.
Answer:
b) A listing of each driver as well as the number of deliveries that he or she has made
Explanation:
SQL which stands for Structured Query Language. and an SQL statements are used in performing tasks such as to update data on a database, or retrieve data from a database. Some of the popular relational database management systems that use SQL are: Sybase, Oracle, Microsoft SQL Server, Ingres, Access, etc.