... today’s date
COP 4710: Database Systems (Day 17) Page 19 Mark Llewellyn
The INVOICE Table in Access (-)
COP 4710: Database Systems (Day 17) Page 1 Mark Llewellyn
COP 4710: Database Systems
Spring 2004
Introduction ... NOT NULL,
PRIMARY KEY ( V_CODE));
COP 4710: Database Systems (Day 17) Page 13 Mark Llewellyn
The VENDOR Table in Access (-)
COP 4710: Database Syste...
... COP 4710: Database Systems (Day 3) Page 1 Mark Llewellyn
COP 4710: Database Systems
Spring 2004
Introduction to Database Systems – Part 2
BÀI 2, 1/2 ngày
School of Electrical ... well-designed database produces,
in an efficient way, a system that provides the
correct information for the decision-making
process to succeed.
Database Design (cont.)
COP 4710: Database Sys...
... Database Systems (Day 5) Page 29 Mark Llewellyn
Correspondence of E-R & UML Class Diagrams
Entity sets and attributes
customer
customer-name
customer-id
customer-street
customer-city
E-R ... Generalization
COP 4710: Database Systems (Day 5) Page 13 Mark Llewellyn
User-defined: User-defined lower-level entity sets are not
constrained by a membership condition; rather, the d...
... G}
) -) %
COP 4710: Database Systems (Day 10) Page 1 Mark Llewellyn
COP 4710: Database Systems
Spring 2004
Introduction to Normalization
BÀI 10, ½ ngày
COP 4710: Database Systems
Spring ... detail.
Temporal relational databases and certain categories of
spatial databases fall into the N1NF category.
)) ),)%
COP 4710: Datab...
... (cont.)
COP 4710: Database Systems (Day 11) Page 1 Mark Llewellyn
COP 4710: Database Systems
Spring 2004
Introduction to Normalization – Part 2
BÀI 11, 1 ngày
COP 4710: Database Systems
Spring ... (cont.)
A B C D E
(AD)
a
1
b
12
b
13
a
4
b
15
(AB)
a
1
a
2
b
13
a
4
b
25
(BE)
b
31
a
2
b
13
a
4
a
5
(CDE)
b
41
b
42
a
3
a
4
a
5
(AE)
a
1
b
52
b
13
a
4
a
5
COP 4710: Database...
... $
}A,B,C,D{D
G
=
+
COP 4710: Database Systems (Day 12) Page 1 Mark Llewellyn
COP 4710: Database Systems
Spring 2004
Introduction to Normalization – Part 3
BÀI 12, 1/2 ngày
COP 4710: Database Systems
Spring ... tested when using algorithm 3NF.2.
A&8"9
COP 4710: Database Systems (Day 12) Page 13 Mark Llewellyn
...