A database administrator is setting up a new table that will contain customer information. The fields include name, address, company, phone, email, and customer ID. The administrator is using the customer ID to uniquely identify each customer record. Which of the following BEST describes the customer ID field?answerForeign keyPublic keyPrimary keyPrivate key
Question
A database administrator is setting up a new table that will contain customer information. The fields include name, address, company, phone, email, and customer ID. The administrator is using the customer ID to uniquely identify each customer record. Which of the following BEST describes the customer ID field?answerForeign keyPublic keyPrimary keyPrivate key
Solution
The customer ID field best describes a Primary key. In database terms, a primary key is a specific type of database constraint that provides a unique identifier for each record in a database table. It contains unique and non-null values. Therefore, in this case, the customer ID is being used to uniquely identify each customer record, which is the function of a primary key.
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