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Comparative Analysis Of Legacy Database Systems

719 words - 3 pages

COMPARATIVE ANALYSIS OF LEGACY DATABASE SYSTEMS

Methods and techniques which are used in [RDBMS] Relational Data Base Management System, it was previously followed by the Database System in simple words before the introduction of RDBMS it was previously followed by the Database System. Database Management System is combination of Database Applications and Database Programs, database management system is still running in Universities and Hospitals of world in present days.

Hierarchical System:
In Hierarchical System a parent is the only parent of the child means child has only one parent which is called child parent relationship or it represent the ...view middle of the document...

In Upper example both an accountant and teacher are maintaining their separate database and execute it in his program and both are concerned about the student’s data but they use their separate database and execution program so it is covering a lot of Storage Space that is very bad practice of work to done. When we want to add up some new information about the students we need to update the current data by adding some rows and columns in it we need to update its single database and obviously it’s very much time wasting procedure. Accountant and the Teacher both dealing with the students data so in Relational Database System the relational data is stored in Catalogs and programs are stored separately. Traditional Database System not provides the High .level Language so that it is another Disadvantage of it.
Another disadvantage of traditional database systems is that high level languages were not provided. They provide only programming language. So, it’s difficult and time consuming to write programs, operations and queries in programming language. When we need some data to be called in the program we just write some...

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