The document describes a transitive dependency and a partial dependency within a PRESENTATION table from an entity-relationship diagram. It states that a transitive dependency exists when attribute A determines attribute B, and attribute B determines attribute C, then attribute A determines attribute C. Within the PRESENTATION table, the transitive dependency is from Pres_FName to Pres_SessionNum. It also states that a partial dependency exists when part of a primary key is used to identify an attribute. In this table, Pres_Room has a partial dependency on Pres_SessionNum since Pres_SessionNum alone can identify Pres_Room.

1. Using the descriptions of the attributes given in the ERD below, provided the one partial
dependency (3 points) and the one transitive dependency (2 points) (5 points total). Hint: Both
dependencies are contained within the PRESENTATION table.
Solution
Transitive dependency:
If there are three attributes in table and A->B but not B->A and B->C then A->C is known as
transitive dependency
In the given table of Presentation,
Pres_SessionNum and Pres_Order are functionally dependent on Pres_AuthorID and this is
functionally dependent on Pres_FName , hence Pres_SessionNum is transitive dependent on
Pres_FName
Partial dependency:
If part of the primary key is used to identify an attribute then it is known as Partial dependency
Pres_Room is functionally dependent on Pres_SessionNum and Pres_Order and
Pres_SessionNum can solely used for identification of Pres_Room
hence Pres_Room and Pres_SessionNum are partial dependent