What is metadata
Write about the term metadata in brief.
Expert
Metadata is utilized in the data warehouse in order to describe the data about data. Meta data are the data which describes the warehouse objects. Metadata are produced for the data names and definitions of provided warehouse.
What is meant by the term merge?
In which case the functional dependencies are not equations? Describe briefly?
What does it mean when we say that a relation is in Boyce-Codd Normal Form (BCNF)?
Identify those statements are true about a foreign key?
Illustrates the term normalization?
Write down the four purposes of the selection of a data type?
Explain the term operational data stage (ODS) and data warehouse?
Explain the object qualification?
Differentiates Tuple-oriented relational calculus and domain-oriented relational calculus?
Write down a short note on XML and also describe the uses of it?
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