DBMS-Complex Attributes
Notice that composite and multivalued attributes can be nested in an arbitrary way. We can represent arbitrary nesting by grouping components of a composite attribute between parentheses ( ) and separating the components with commas, and by displaying multivalued attributes between braces {}. Such attributes are called complex attributes. For example, if a person can have more than one residence and each residence can have multiple phones, an attribute AddressPhone for a PERSON entity type can be specified
Calling Built-In Applications Using Intents Until this point, you have seen how to call activities within your own application. One of th...