provide a description of the data characteristics and also the set of relationships that attach the data found within the database.

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the problem in which every one of the data in the database are continual with the real-world events and conditions.
An internal _____ describes a details representation of an inner model, utilizing the database constructs supported by the liked database.
In a database context, a(n) _____ indicates the usage of various names to define the exact same attribute.
The "_____" properties of a primary key states the the primary vital must uniquely recognize each entity instance, must be able to guarantee distinctive values, and must no contain nulls.
The "_____" properties of a primary an essential states that the primary an essential should not have installed semantic meaning.
The "_____" characteristics of a primary vital states the the selected primary crucial must not be written of any kind of attribute(s) that could be taken into consideration a violation.
A table that has all an essential attributes defined, has actually no repeating groups, and also all its qualities are dependent on the primary an essential is stated to it is in in _____.
A(n) _____ exists when there are useful dependencies such that Y is functionally dependence on X, Z is functionally dependence on Y, and X is the main key.

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make(s) it feasible to unify SQL and also traditional programming constructs, such together variables, conditional handling (IF-THEN-ELSE), simple loops (FOR and WHILE loops,) and error trapping.
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