Answer to Question 1
The steps are:
(1 ) Identify all functional dependencies in the relation.
(2 ) Identify every candidate key in the relation.
(3 ) Check to see if all determinants are candidate keys.
a. If so, the relation is in BCNF-STOP.
b. If not, then:
i. Move the columns of the functional dependency of the determinant that is not a candidate key to a new relation.
ii. Make the determinant of that functional dependency the primary key of the new relation.
iii. Leave a copy of the determinant in the original relation as a foreign key.
iv. Create a referential integrity constraint between the relations.
NOTE: If there is more than one functional dependency that needs to be moved, move the functional dependency with the most columns first.
(4 ) Repeat step (3 ) until you reach STOP.
Answer to Question 2
An SQL Script is a group of SQL statements that are run consecutively. Each of the SQL statements in the script could be run separately, but running them as a group is more efficient, and this is what makes SQL scripts useful. A good example is grouping all the SQL CREATE TABLE statements necessary to build a database structure into a single SQL script.
Tonsils—normal and enlarged.
Erythroblastosis fetalis. (a) The condition occurs with an RH+ father and RH– mother. (b) First preg
2 Several oxygen-binding curves: for normal hemoglobin
Many plastic intake manifolds are constructed using many parts glued together to form complex ...
Primary steps in fibrinolysis
Microarray procedure for analyzing gene expression in normal and cancer cells