7.1 Read and translate the following words and
word-combinations.
a collection of
data, the database capabilities, computerized filing cabinets, sophisticated
multiple-file systems, handle basic tasks, a general example, a set of records,
a preidentified sequence, ZIP code, the entire
contents, to meet the criterion, a specific record.
1.2Learn key words
and word-combinations.
database (n) – база даних
database
management system – СКБД (система керування базою даних)
databasemanager – адміністратор бази даних
databaseprogram – програма бази даних
databasesoftware – програмні засоби бази даних
field (n) – поле
filemanager – програма керування файлами
format (v) – форматувати
personalinformationmanager – адміністратор особистої інформації
record (n) – запис
record structure
– структура запису
report generator
– генератор звітів
7.3 Read and translate the text.
DATABASE SOFTWARE
A database is a
collection of data, a structure, and programs that can manage and manipulate
the data and its structure. The database capabilities for personal computers
vary widely. Very simple databases are nothing more than computerized filing
cabinets. Sophisticated multiple-file systems are suitable for organizing
large amounts of information and retrieving that information in many different
ways.
Database software for personal computers falls into two
categories:
• A file manager
is composed of a single file, its indexes, and a program to handle
basic tasks such as entering, modifying, retrieving, and printing data from the
file.
• A database
manager is composed of multiple files, their indexes, the
relationships among data in the files, and a program to link the files and
handle basic tasks such as entering, modifying, retrieving, and printing data
from the file.
. A database
program derives much of its power through the ability to perform three simple
tasks: sorting, searching, and generating reports. To show how a database
program allows you to perform these tasks, it is helpful to look at a general
example. Almost all businesses keep a set of records known as a customer list.
In its simplest form, it might be a file, in which each record is a card that
contains a customer's name, address, and phone number. A more complex example
might include a record for each customer that contains enough information to
generate all the company's billing information.
Suppose that the customer list database is made up of one record
for each customer, which includes the previously mentioned customer information
along with some general information about the customer's purchases. Sorting, which involves arranging the
records into a predeidentified sequence, makes it possible to generate
a list sorted by customer number, alphabetically by customer name, by ZIP
code for mailing purposes, or even by items purchased. Sorting a database also
makes it possible to search and generate reports in various sequences. For
example, you can sort a database alphabetically by customer name to print a
report and then sort the database by ZIP code to generate and print mailing
labels in ZIP code order.
Searching
involves the ability to find information in a database. This might include a
most general case in which you want to list the entire contents of a database
on the computer's display screen or a special case in which you want to search
for a specific record or set of records. For example, if you want to know the
name of every customer who purchased more than $10,000 worth of goods last
year, you could search the customer list database to display only those
customers who meet the criterion—more than $10,000 in sales.
A report generator
allows you to create nicely formatted reports, including headings,
subheadings, columns of data from the database, columns of data computed from
existing fields in the database, and computed intermediate and final totals.
Once the format of the report has been defined, it can be saved as a file on a
disk and used over and over again to print copies of the report.
. A class
of software similar to database programs is called personal information managers.
Like databases, these programs help you manage information. Unlike
databases, they can manage information without using the record and field
structure common to databases. You do not have to think about the structure of
your data ahead of time. For example, you can use a personal information
manager to type in notes about a project you are working on, then filter
through the notes and reorganize them by categories of your own choosing.
1.4Give English equivalents.
упорядковувати
базу даних в алфавітному порядку, знаходити інформацію в базі даних, керувати
даними та їхньою структурою, складні системи файлів, керувати основними
завданнями, з’єднувати файли, відповідати критерію, визначити формат звіту,
заздалегідь, за власним вибором, друкувати звіт, вводити дані, вилучати дані
1.5Answer the questions.
1.What is a database?
2.Which tasks can be performed by using a database?
Make a list of possible applications.
3.What do these terms mean in Ukrainian: file, record,
field?
4.What is personal information manager?
5.What stages can be defined while working with
database?