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Basic concepts of databases
Database
A database is a set of structured and not redundant information, whose
organization is based on a data model. It consists of files, records (electronic
cards) and fields.
Redundancy means repetition. Different data models are discussed later.
Synonyms for databases: registers, search tools, electronic card files, electronic collections.
File
A file (e.g. a table) consists of records. A file also contains the layout
designed for these records.
Record (Row)
A record is a collection of information kept about one person, product or
transaction.
Field (Column)
Within each record information is entered into a field which represents a
category of information.
Table
A table is a database object for storing data. Each table contains
information about a particular subject, such as customers. A table consists
of records and fields. So, it´s a file.
Form
A form is a database object designed primarily for data input and display.
The data shown extracts from tables and queries.
Database program (Database Management System, DBMS)
A database management system is software which plays the role of
interface between the users and the database.
It provides all the data definition, data manipulation, and data control
features the user needs to manage.
A database management system and a database form together a database
system.