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To design a simple database schema for storing student attendance in a classroom, we need to consider the core entities involved: students, classes, and attendance records. The schema will be relational, allowing for normalization and efficient querying. 1. Tables, Fields, and Data Types: a) Students Table This table stores basic student information. * `student_id` (INT, PRIMARY KEY, AUTO\_INCREMENT): Unique identifier for each student * `first_name` (VARCHAR(50)): Student’s first name * `last_name` (VARCHAR(50)): Student’s last name * `roll_number` (VARCHAR(20), UNIQUE): Roll number or registration ID * `email` (VARCHAR(100)): Email address * `class_id` (INT): Foreign key to the Class table b) Class Table This table stores details about the classes in the institution. * ________ _______ _________ _______ ____ _______ _______ ___ _________ ______ _______ ________.
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