True or False: Without a unique identifier column in your contact list, the entire row can be treated as the primary key.

Having a unique identifier column in a contact list is crucial for effectively managing and referencing data. When a unique identifier is present, it allows for precise tracking and retrieval of records, ensuring that each entry can be uniquely distinguished from others. This is particularly important in a database because it prevents confusion and errors that could arise from having multiple entries with similar or identical data.

In scenarios where a unique identifier column is absent, treating the entire row as a primary key may seem plausible at first glance. However, this method is not advisable since it relies on the assumption that no two rows will duplicate exactly. In real-world datasets, especially those involving contacts, it's highly likely that multiple entries could contain the same values across all columns, leading to ambiguity and errors during data operations such as updates or deletions.

Therefore, the assertion that the entire row can serve as a primary key is misleading. Without a dedicated unique identifier, the integrity of the data management process is compromised, as it cannot reliably ensure uniqueness on a row-by-row basis. Thus, the statement is deemed false, underscoring the importance of having a designated unique identifier column in any contact list.