Question: A possible DDL corresponding to Figure 3.1 is shown below: Discuss the following detailed design decisions: a. The choice of requiring NAME to be NON
.png)
Discuss the following detailed design decisions:
a. The choice of requiring NAME to be NON NULL.
b. Selection of SSN as the PRIMARY KEY.
c. Choice of field sizes and precision.
d. Any modification of the fields defined in this database.
e. Any constraints on individual fields.
NAME SSN HOMEPHONE VARCHAR(14) ADDRESS OFFICEPHONE VARCHAR(14) AGE GPA VARCHAR(30 NOT NULL CHAR(9) PRIMARY KEY, VARCHAR(40), INT DECIMAL(4,3
Step by Step Solution
3.48 Rating (171 Votes )
There are 3 Steps involved in it
a This means that no Students can exist without a Name b This has a possible problem because there are some restrictions on using SSN as an identifier ... View full answer
Get step-by-step solutions from verified subject matter experts
Document Format (1 attachment)
888-CS-DB (2322).docx
120 KBs Word File
