Thursday, January 3, 2013

DATABASE - WEEK 12 :)


 Assalamualaikum and very good evening.. Tonight i will talk about DATABASE.. from what i already knew database is like electronic filing... its make our work more easier. Software that we use to manipulating database is a Database Management System...Database also have 4 component which are DATA ITEM, RELATIONSHIPS, CONSTRAINTS, SCHEMA.. from what i have learnt, Database Management System have 5 primary function such as
      •Define, create and organise a database
      •Input data
      •Process data
      •Maintain data integrity and security
       Query database
 The DBMS software together with the Database is called a database system There are four type of
 database model.. :
    Hierarchical databas
     Network database
     Relational database
    Object-relational database
SQL is a language that we use in database for requesting information from database..SQL stand for
standardized query language .Usually we use MICROSOFT ACCESS for their DBMS.. for summary in this
lesson database is a collection of data that we already prepared so that a computer program can quickly
select desired items.
THANK YOU :)