Which of the following statements is not true about alternate keys?

The statement that is not true about alternate keys is the one that suggests the primary key of a table is a GUID and that an alternate key is necessary to help identify it. In reality, while the primary key in Microsoft Dataverse is often a GUID and may not have meaning to users, alternate keys serve a different purpose. They provide a more user-friendly way to identify records that users can relate to, but they do not inherently help in understanding the primary key itself.

Alternate keys are additional keys defined on a table to ensure data integrity and enable lookups that are more intuitive, such as using common fields that users recognize. This characteristic enhances usability but does not necessarily clarify the existing primary key; instead, alternate keys allow the database to enforce uniqueness on one or more fields that are more relevant to the user.

The other statements reflect accurate truths about alternate keys. They do indeed make data handling easier for users by providing meaningful identifiers. They can also contribute to improved database performance by potentially allowing for faster lookups based on the constraints defined by the alternate keys. Furthermore, it’s a standard requirement that all alternate keys must be unique, ensuring that duplicate values cannot exist for those key fields in the database.