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What is data independence? Data Independence: Techniques which permit data to be changed without affecting the applications in which procedure it. There are two types of data
Which model is record based logical model? Network Modelis basically known as record based logical model.
FitAll Ltd is a company that manufactures clothes. Its processes are manual and there are stand-alone Information Systems that aid to manage them. The Information Systems were purc
#quesDefine a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pi
Define a property that is not a property of transactions? Ans: Concurrency is not a property of transactions
What is a candidate key? Minimal super keys are known as candidate keys.
This assignment concerns the Research database. The database ER model is shown above, where attributes are omitted for clarity. The relational model for the database is: Departm
what is union compatable?
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
What's the difference between a primary key and a unique key? Both primary key and unique key enforces uniqueness of the column on which they are explained. But by default prim
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