hoose the correct answerStudent(ID, name, dept name, tot_cred) In this query which attribute form the primary key?OptionsDeptNameTot_credID
Question
hoose the correct answerStudent(ID, name, dept name, tot_cred) In this query which attribute form the primary key?OptionsDeptNameTot_credID
Solution
To determine which attribute forms the primary key in the given query, we need to analyze the options provided: DeptName, Tot_cred, and ID.
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DeptName: This attribute represents the name of the department. It is possible for multiple students to belong to the same department, so it is not suitable to be the primary key.
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Tot_cred: This attribute represents the total credits earned by a student. It is also possible for multiple students to have the same total credits, so it is not suitable to be the primary key.
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ID: This attribute represents the student's ID. Each student is assigned a unique ID, and it is common for the ID to be used as the primary key in a database table. Therefore, the attribute ID is the most likely candidate to form the primary key in this query.
Based on the analysis, the correct answer is ID.
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