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Earn +20 ptsQ: Is a placeholder for data that might change is called?
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How it is related to data independence?
Hi, Data Independence refers to the immunity of user application to make changes in the definition and organization of Data. There are three types of Data Independence - 1. Logical Data Independence - The ability to change the logical (conceptual) schema without changing the External schema (User View) is called logical data independence. 2. Physical Data Independence - The ability to change the physical schema without changing the logical schema is called physical data independence. 3. View Data Independence - always independent,no effect.
How can you change the data in to raw data?
The initial data that you collect is raw data.
What is discontinuous data?
i think it is data that does not change!
What is the repetition of data in a database called?
its called data redundancy.
How does raw data change into grouped data?
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