Page 15 - Database-En-V3

We note that the data in Table No. 3 was not available in its current form in Table No.
2, even though it was extracted from it. Further, Table 4 did not previously exist in this
form, and it is deducted and arranged according to the foreign language selection, and
the students’ data in it are arranged in descending order according to the Language
1course grade, plus the guardian’s phone.

To find out how we obtained the results in Table No. 3, we will discuss the concept of
data, information, processing, database elements, database model and database
object, and files to clarify the definition of databases and then infer their importance
and features.

• Data: It is the raw for the information, that is, the description of something. For
example, the data about students is the description that expresses who the student is
and defines him through the name, address, phone, guardian,... and so on, as in the
previous example.

• Information: It is the data that has been processed and has become more
meaningful and valuable. In the previous example, the success rate in the language
courses was calculated according to the total grades obtained by the students in the
language courses, then its percentage was calculated from the total final score for the
entire courses, and then the percentage Success for a course: What is the information
we obtained after conducting the collection process and calculating the percentage
for each course from the total student results in the first semester courses in Table 2?
In light of the information shown in Table 3, it became easy to make a decision about
the school’s participation in the international language competition. To determine
which language the school will participate in, and then to nominate the students
participating in the competition, the process of arranging the students’ grades in
descending order was carried out according to only one course participating in the
competition, and Table No. 4 was obtained. Hence, we will find that Table No. 1 and
Table No. 2 represent the abstract picture of the students and the course results for
the first semester and the initial raw of the information that we obtained in Table No.
3 and Table No. 4.

8 Training unit in the field of technological information - at the Supreme Council of Universities © Intellectual property rights 2024