Sql Tables For Practice
SQL Tables for Practice - A Comprehensive Guide
Sql Tables For Practice
SQL tables are fundamental components of a relational database, organizing data into rows and columns for efficient storage and retrieval. When practicing SQL, it is common to work with tables that represent different entities or categories of information, such as customers, orders, products, or employees. These tables typically consist of columns that define the attributes or properties of the entity, along with rows that represent individual records. By structuring data in tables, SQL queries can be used to manipulate and extract information based on specified conditions, enabling users to practice writing and executing various types of database queries to improve their SQL skills.
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1 - The “Students” table includes columns such as StudentID (primary key), FirstName, LastName, Age, and Grade. This table stores information about students enrolled in a school.
2) The “Courses” table contains columns CourseID (primary key), CourseName, and Instructor. This table holds data about various courses offered by the school and the instructors teaching them.
3) The “Enrollments” table consists of columns EnrollmentID (primary key), StudentID (foreign key to Students table), CourseID (foreign key to Courses table), and EnrollmentDate. This table records the enrollment details of students in different courses.
4) The “Teachers” table includes columns TeacherID (primary key), FirstName, LastName, and Department. This table stores data about teachers working in the school and their respective departments.
5) The “Departments” table contains columns DepartmentID (primary key), DepartmentName, and Location. This table holds information about different departments within the school and their physical locations.
6) The “Grades” table consists of columns GradeID (primary key), StudentID (foreign key to Students table), CourseID (foreign key to Courses table), GradeValue, and GradeDate. This table records the grades of students in various courses along with the date they were awarded.
7) The “Assignments” table includes columns AssignmentID (primary key), CourseID (foreign key to Courses table), AssignmentName, DueDate, and MaxScore. This table stores information about assignments given in different courses along with their due dates and maximum scores.
8) The “Attendance” table contains columns AttendanceID (primary key), StudentID (foreign key to Students table), CourseID (foreign key to Courses table), AttendDate, and Status. This table records the attendance of students in different courses on specific dates along with their attendance status (present/absent).
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