Crucial Exams

CompTIA ITF+ FC0-U61 Practice Question

A database administrator is tasked with designing a new table in a relational database that holds customer account information. The administrator must ensure that every row in the table has a unique, non-null identifier for each customer. Which type of constraint should the administrator use to enforce this rule?

  • Foreign key constraint

  • Primary key constraint

  • Check constraint

  • Unique constraint

CompTIA ITF+ FC0-U61
Database Fundamentals
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