Refer To The Database Design Created In Lab 2: Modifying A D
Refer To The Database Design Crested In Lab 2 Modifying A Database De
Refer to the database design created in Lab 2: Modifying a Database Design to complete this lab. Perform the following steps in MySQL: Create the tables and relationships from the database design discussed in Lab 2. Add at least five (5) records into each table, determining the field values. Create a query with all fields from the student table where the student's last name is "Smith." Create a query that includes students’ first names, last names, and phone numbers. Create a query that includes instructors' first names, last names, and courses they teach. Include screenshots of the tables created in MySQL, the records added into each table, the SQL code, and the query results for each of the queries. Submit the assignment as a Microsoft Word document with a cover page containing the assignment title, your name, your professor’s name, the course title, and the date.
Paper For Above instruction
The task of this assignment revolves around the practical application of database creation and querying in MySQL, based on an existing database design from Lab 2. This exercise is fundamental in developing skills in relational database management, emphasizing data definition, data manipulation, and data retrieval. To effectively complete this assignment, a comprehensive understanding of SQL commands and database relationships is essential, as is the ability to translate a conceptual database design into a physical schema in MySQL.
First and foremost, the assignment requires creating the database tables and establishing their relationships as per the design specified in Lab 2. These tables typically include entities such as students, instructors, courses, and any related associative tables if many-to-many relationships exist. Proper data types for each field must be selected—such as VARCHAR for textual data, INT for numerical identifiers, and DATE for date fields—and primary keys should be defined to uniquely identify records. The creation process involves using SQL Data Definition Language (DDL) statements like CREATE TABLE, ensuring referential integrity through foreign key constraints that establish relationships between tables.
Following the table creation, the next step is populating each table with at least five records. These records should be realistic and consistent with the database's intended purpose. For example, student records might include fields such as StudentID, FirstName, LastName, PhoneNumber, and Email, with values carefully chosen to emulate typical data. Instructor records might feature InstructorID, FirstName, LastName, and CoursesTaught. This step allows practicing data manipulation skills, emphasizing the insertion of data using INSERT statements while maintaining data integrity and consistency.
The core of the assignment involves querying the database to retrieve specific data subsets. The first query targets the student table, fetching all data where the last name is "Smith." This requires a SELECT statement with a WHERE clause filtering on the LastName field. The second query aims to extract students’ first names, last names, and phone numbers, demonstrating the ability to perform specific attribute selections. The third query involves joining the instructor and course tables to retrieve instructors’ first and last names along with the courses they teach, which entails using JOIN operations to combine data from multiple tables based on relational keys.
To document this process, screenshots are required at various stages. These include snapshots of the created tables in MySQL, the records inserted into each table, the SQL code used for creating tables, inserting data, and executing each query along with their results. Properly documented screenshots serve as visual evidence of the process and correctness of the implementation.
The final step is compiling all these elements into a structured Microsoft Word document. The document must have a cover page containing the title of the assignment, student’s name, professor’s name, course title, and date, serving as a professional presentation of the work. The report should include clear explanations of each step, with embedded screenshots for clarity, and an organized display of SQL code and query outputs. This exercise not only assesses technical skills in SQL and database design but also emphasizes presentation and documentation skills vital for database professionals.
References
- Beaulieu, A. (2009). Database systems: A practical approach to design, implementation, and management. Cengage Learning.
- Fundamentals of database systems. Pearson.