Today we will talk about the evolution of data management technology from traditional file to data warehouse.
Traditional File
The traditional file is containing only specific types of data record by one or more specialized data files.
Database Management (DBMS)
DBMS can generate data into databases that can be accessed by different programs and serves as software interface between users and databases.
Logical Data Elements
Logical Data Element use character or bit such as single alphabetic, numeric or other symbol to represent element. It contains field or data item to group related character. It also record grouping all the fields used to the attributes of an entity.
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