The following shows a snapshot of an EAV table for clinical findings from a visit to a doctor for a fever on the morning of 1/5/98. The entries shown within angle brackets are references to entries in other tables, shown here as text rather than as encoded foreign key values for ease of understanding. In this example, the values are all literal values, but they could also be pre-defined value lists. The latter are particularly useful when the possible values are known to be limited (i.e., enumerable).