When property of "require" is assigned to a column in a relation, it enforces... A. Requirement Validation B. Form Requirement C. Data Requirement D. Data Validation

____________ is enforced when a property of "required" is assigned to a column. A. Form Requirement B. Requirement Validation C. Data Validation D. Data Requirement

What does the `required` attribute do in an HTML5 form input element?

What does the "required" attribute do in an HTML form?It specifies that the input field must be filled out before submitting the formIt specifies the default value for the input fieldIt makes the input field read-onlyIt hides the input field from the form

A _________ integrity constraint requires that the values appearing in specified attributes of any tuple in the referencing relation also appear in specified attributes of at least one tuple in the referenced relation.Question 7Answera.Specificb.Referentialc.Primaryd.Referencing

Based on the relationship provided above, where referential integrity is enforced, which of the following statements is true?Question 3Answera.Data must be entered into the Students table first.b.Data must be entered into the Enrolment table first.c.Enrolment data can be entered without the unit code.d.The order of data entry does not matter.