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Create an ERD and relatioal schema in third normal form based upon the following business rules. (Hint: ensure that all attributes are FULLY DETERMINED by the primary key.) Don't forget to place your normalization arrows on your relational schema.
Write create table statements for all entities listed on your relational schema.
A STUDENT enrolls in many COURSES. Attributes associated with STUDENT include:
COURSES may be enrolled by many STUDENTS. Attributes related to COURSE include:
The university wishes to record the grade each STUDENT has earned in a COURSE.
If you make any assumptions about the business rules, please state them.
A vendor builds multiple types of tablet computers. Each hs a type identification number and a name. The key specifications for each type include amount of storage and display
Discuss how OLAP and data warehousing technologies work together in solving user problems. What are the advantages and disadvantages of the different OLAP technologies (MOLAP,
A distributed database management system (DDBMS) stores a logically related database over two or more physically distinct locations connected by a computer network.
Optimistic concurrency control sets few locks on the data in the database, lowering the isolation level that you use in an application. This allows more applications to run co
optimize the query in the select script using Alter Table to add appropriate indexes. Also use Optimize and Explain to show how the performance of this query has improved.
Assume that a student table in a university database has an index on StudentID (the primary key). and additional indexes on Major, Age, Marital status, and HomeZipCode.
Indexing can affect the performance of a general-purpose database that has roughly equal numbers of fetches and changes. The decision to add an index can improve the performan
One side effect of normalization is that you often need more than one table to get meaningful results. For example, you may have a table that includes a list of parts and the
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