On the other hand, if no candidate key
arises, then one needs to dig deeper for a better understanding of what is happening.
But if all candidate keys
are taken into account (that is considered here), although there are no partial dependencies on A, we have a partial dependency B [right arrow] D on candidate key
BC, implying that the relation is not in 2NF.
1 Step 1: Discriminate non-shot transition frames as candidate key
83) Source of Normal Forms Design Principles Anomaly Functional 1NF, 2NF, BCNF: Design tables so that every Dependencies 3NF, BCNF determinant is a candidate key
Multivalued 4NF 4NF: Move each multivalued Dependencies dependency to a table of its own Data constraints 5NF, DK/NF DK/NF: Make every constraint a and oddities logical consequence candidate keys
Key phrase extraction from a body of text relies on an evaluation of the importance of each candidate key
Such an attribute, or combination of attributes, is called a candidate key
The two foreign keys combine to form a candidate key
Each candidate key
consists of the attribute or attributes used to label a distinct row in a table.
Any form field matching a common candidate key
suffix such as NAME, NO, NUMBER, or # may represent an entity (e.
A candidate key
is a set of attributes that uniquely identify each row.
High amongst the candidate keys
for re-labelling is the 'help' button.