Use Table 1 to answer the following ques...
Use Table 1 to answer the following question.
Table 1: TableStudent
| Reg No | House |
Age |
| 18/001 | Yellow | 14 |
| 18/002 | Blue | 15 |
| 18/003 | Yellow | 15 |
The attributes in Table 1 are
Yellow, Blue, Yellow
14, 15, 15
Reg. No, House, Age
18/001, 18/002, 18/003
Correct answer is C
The attributes in Table 1 are Reg. No, House, and Age.
An attribute is a single piece of data about an entity. In Table 1, each row represents a student entity. The Reg. No, House, and Age columns represent the attributes of the student entity.
The values in the Reg. No column are unique, so the Reg. No column is the primary key of the table. The House and Age columns are not unique, so they cannot be used as primary keys.
The other values in the table are the data for the attributes. For example, the value "18/001" in the Reg. No column is the data for the Reg. No attribute of the first student entity.
A Word document can have any of these file extension except ...
Computer ethical practises include the following except ...
Which of the following persons invented the punch card machine? ...
A field in a database table is also known as ...
Frequent backup of computer files helps to ...
Preventive maintenance measures in computer room do not include ...
Which of these channels would enable business transactions between a buyer from Nigeria and a s...
The volume of data that can be sent from one point to another in a given time period is called ...