What is data abstraction in database management? Which stage of database design is it used in? How does it help the database developer during the design of a database? Name the different levels of data abstraction? What is the function of each level? What is classification and how is it used to build an abstract hierarchy?
Data abstraction is the lessening or decrease of a specific body of data to a simplified or basic representation of the whole. It is normally the initial phase in designing a database. A full database is greatly very complex or complicated for a system to be developed without building a simplified or basic framework first.
It is possible for the developer to begin from vital elements using data abstraction and then incrementally add detail to the data the build the final system. In general, abstraction is the method of removing characteristics or properties from something to be able to shrink it to a set of important characteristics or properties.
In programming, abstraction allows a programmer to hide all less important data showing only significant data about an object to lessen complexity and boost efficiency.
