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1                    INTRODUCTION TO


                                            DATABASE CONCEPTS





                Your Aim

                 Contents                                             1.7 Table Creation using Wizard in LibreOffice
                 1.1 Meaning of the Term ‘Data’                           Base
                 1.2 Meaning of ‘Database’                            1.8  Insertion  of  Record
                 1.3 Database Management System (DBMS)                    in a Table
                 1.4 Table in a Database                              1.9 Deletion of Record
                                                                          From a Table
                 1.5 Data Type in a Table                             1.10 Query Creation
                 1.6  Primary Key in a Table                              using Wizard

                 1.1 MEANING OF THE TERM ‘DATA’

                 Dear students, you have definitely come across the word ‘data’ in various real-world situations
                 or applications. Actually, whatever we do in the real world, it involves the recording of some
                 facts, figures, etc. These facts, figures, etc. are termed as data.
                 Let us discuss an example. You are a student of class 8 ; this is one of the facts of your
                                                                               th
                 whole description. Now, as a student of class 8 , you also possess various other attributes
                                                                     th
                 or data such as Admission No., Name, Section, Father’s Name, Mother’s Name, Date of
                 Birth, Blood group, etc. All these facts are used to describe your identity.
                     Data: Data can be defined as the facts, figures, numbers, symbols, etc. that are used

                     to describe the properties or characteristics of a person, object, etc. For example, a
                     student of a school has various kinds of data as given in the figure below:
                                                        A STUDENT HAS


                            ADMISSION NO.                                                 MOTHER’S NAME




                                NAME                                                              EMAIL




                              DATE OF BIRTH                                                   CLASS




                 1.2 MEANING OF ‘DATABASE’

                     Database: A database can be defined as a place or storage area which is used to store
                     a large amount of interrelated information about real-world objects or entities.




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