Views 2 has a great feature called Relationships, allowing your view to aggregate fields from various content types which are related some how. For example, say you have a Person content type and a Dependent content type. Within your view, you might want the Person's first/last name, age, etc.. as well as that person's Dependent's first name. With Views 2, you connect these content types in a view via Relationships and all is dandy. In Views 1 (Drupal 5) however, this is impossible without custom code.

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