Computer Science for IGCSE & O level - Databases (Section 1 - No. 6)
What is the purpose of the 'Required' property for a field in a database?
To specify the data type.
To indicate the data format.
To prevent the field from being left blank.
To set a default value.
Giải thích
Setting 'Required' to true enforces that the field must have a value entered.