A composite primary key applies to more than one field. <span>A table can have only one primary key, which may consist of single or multiple fields.</span>
A composite primary key is selected from Design view. <span>In Design </span>view<span>, you can use the </span>Primary Key<span> button to assign or remove the </span>primary key<span> designation for the </span>selected<span> field or fields.</span>
It would be False, because if you were to mess up it can result in something going bad.
<span>It is an example of an assistive output device. These are an example of assistive technology, which is any technology optimized to help the user mitigate the aspects of a disability. This may enable them to use the technology as intended, or it may also assist them in functioning in their everyday lives.</span>
An Integer in an object that represent an int (Integer a = new Integer(3) would represent 3).
I'm not sure about Real.
A String is an object that represents a word. (String a = "dog")
Boolean
String
int
int
Hope this kind of helps