Distribution. Distribution Use the check boxes to select distributions to display. Distribution Use the check boxes to select distributions to display in the graph. Distribution Use buttons to select a different distribution to display in the map.
Definition - What does Cardinality mean? In the context of databases, cardinality refers to the uniqueness of data values contained in a column. High cardinality means that the column contains a large percentage of totally unique values. Low cardinality means that the column contains a lot of ârepeatsâ in its data range.
Relationship Cardinality Constraints in Relational Database Design. INTRODUCTION. Database modelling is a complex task that involves conceiving, understanding, structuring and describing real universes of discourse (UD) through the definition of schemata using abstraction processes and data models. Traditionally, three phases are identified in database design: conceptual, logical and physical design.