Final answer:
In Microsoft Access, the Relationship Command to link two tables and enforce data integrity is located on the Create Tab.
Step-by-step explanation:
Two tables can be linked with relationships so that the data integrity can be enforced in many database management systems. For Microsoft Access, which is likely the context of this question, the Relationship Command can be found on the Create Tab. This tool allows you to define how data in two tables is related, ensuring that references are consistent and that the integrity of your data is maintained through referential integrity, which includes the enforcing of cascading updates and deletes.