QuestionApril 23, 2025

Your college has a database with a Students table. Which of the following could be a primary key in the table? Check All That Apply Student number Social Security Number Street address Last name

Your college has a database with a Students table. Which of the following could be a primary key in the table? Check All That Apply Student number Social Security Number Street address Last name
Your college has a database with a Students table. Which of the following could be a primary key in the table? Check All That Apply Student number Social Security Number Street address Last name

Solution
3.5(247 votes)

Answer

Student number, Social Security Number Explanation 1. Define Primary Key Characteristics A primary key must be unique, not null, and should uniquely identify each record in the table. 2. Evaluate Each Option - **Student number**: Likely unique for each student. - **Social Security Number**: Unique to each individual. - **Street address**: Not unique; multiple students can share an address. - **Last name**: Not unique; many students can have the same last name.

Explanation

1. Define Primary Key Characteristics<br /> A primary key must be unique, not null, and should uniquely identify each record in the table.<br /><br />2. Evaluate Each Option<br /> - **Student number**: Likely unique for each student.<br /> - **Social Security Number**: Unique to each individual.<br /> - **Street address**: Not unique; multiple students can share an address.<br /> - **Last name**: Not unique; many students can have the same last name.
Click to rate:

Similar Questions