Why is it important to create relationships between tables in Access?

Why is it important to create relationships between tables in Access?

• A. To prevent data duplication and maintain integrity
• B. To enhance visual appearance of reports
• C. To simplify the data entry process
• D. To facilitate exporting data to Excel

Answer: (A)

Creating relationships between tables in Access is crucial for preventing data duplication and maintaining data integrity. When tables are linked through relationships, it allows for the organization of data in a way that ensures each piece of information is stored only once, which minimizes redundancy. This structure helps to uphold data accuracy, making it easier to enforce rules such as referential integrity, which ensures that relationships between tables remain valid. For instance, if you have a table for customers and another for orders, establishing a relationship between them allows you to ensure that each order is associated with a valid customer. This prevents scenarios where orders might be linked to non-existent customers, which could lead to errors and inconsistencies in your database. Overall, well-defined relationships are foundational for designing a reliable and efficient database system.

Creating relationships between tables in Access is crucial for preventing data duplication and maintaining data integrity. When tables are linked through relationships, it allows for the organization of data in a way that ensures each piece of information is stored only once, which minimizes redundancy. This structure helps to uphold data accuracy, making it easier to enforce rules such as referential integrity, which ensures that relationships between tables remain valid.

For instance, if you have a table for customers and another for orders, establishing a relationship between them allows you to ensure that each order is associated with a valid customer. This prevents scenarios where orders might be linked to non-existent customers, which could lead to errors and inconsistencies in your database. Overall, well-defined relationships are foundational for designing a reliable and efficient database system.