Access Validation

What are data validation rules in Access?

• Data validation rules in Access are used to create new tables in a database

• Data validation rules in Access are used to ensure that data entered into a database meets certain criteria or conditions.

• Data validation rules in Access are used to delete data from a database

• Data validation rules in Access are used to organize data in a database

Explain the concept of input mask in Access.

• An input mask in Access is a tool used to encrypt data before it is entered into the database.

• An input mask in Access is a type of protective gear worn by users to prevent data entry errors.

• An input mask in Access is a feature that hides sensitive data from being entered into the database.

• An input mask in Access is a set of rules that specify the format in which data can be entered. It helps to ensure that data is entered correctly and consistently.

How does field validation work in Access?

• Field validation in Access works by setting validation rules and validation text for a field in the table design view.

• Field validation in Access works by randomly selecting a validation rule for each field.

• Field validation in Access works by allowing any input without any restrictions.

• Field validation in Access works by automatically correcting any invalid data entered.

What are validation error messages in Access and how are they used?

• Validation error messages in Access are used to alert users when data entered into a field does not meet the specified criteria, such as data type or range. They are used to ensure data integrity and accuracy.

• Validation error messages are used to play music when data is entered incorrectly

• Validation error messages are used to display advertisements to users

• Validation error messages are used to congratulate users for entering correct data

Discuss the role of input mask in maintaining data integrity in Access.

• Input masks in Access are used to slow down the data entry process

• Input masks in Access are used to hide sensitive data from unauthorized users

• Input masks in Access help to enforce a specific format for data entry, such as phone numbers or dates, which prevents users from entering incorrect or inconsistent data. This ensures that the data stored in the database is accurate and reliable, thus maintaining data integrity.

• Input masks in Access are used to randomly generate data for the database

What are the different types of field validation in Access?

• Color validation, size validation, and shape validation

• Data type validation, range validation, and pattern matching validation

How can validation error messages be customized in Access?

• By using the 'Validation Text' property in the table design view.

• By changing the font color of the error message

• By deleting the validation rule

• By creating a new table for error messages

What is the purpose of using a primary key in Access?

• To allow duplicate records in a table

• To uniquely identify each record in a table

• To encrypt data in the database

• To create a backup of the database

How can you enforce referential integrity in Access?

• By using the 'Cascade Delete' option

• By setting up relationships between tables and enabling the 'Enforce Referential Integrity' option

• By creating a new database

• By using the 'Compact and Repair' tool

What is the function of a lookup field in Access?

• To perform calculations on data

• To allow users to select a value from a predefined list

• To encrypt data in the database

• To create a new table