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QUESTION 1 Below is a list of database concepts. Your task is to contribute a SINGLE characteristic for ANY ONE concept, which can be one

QUESTION 1
Below is a list of database concepts. Your task is to contribute a SINGLE characteristic for ANY ONE concept, which can be one of the following, where applicable (definition, description, how it is used, etc.). Your answer should be at least 120 words.B
Business rule
Entity integrity
Referential integrity
Total completeness
Partial completeness
Specialization
Generalization
Specialization hierarchy
Inheritance
Aggregation
Simple attribute
Primary key
Candidate key
Foreign key
Composite key
Superkey
Normalization
Atomicity
COMMIT command
Data dictionary
Equijoin
Left outer join
Right outer join
Predicate logic
INTERSECT operator
UNION operator
ROLLBACK command ALTER TABLE command
1NF
2NF
3NF
4NF
BCNF
Entity subtype
Entity supertype
Surrogate key
Conceptual design
Conceptual schema
Data warehouse
Existence -dependent Internal schema
Non-identifying relationship
Relational diagram
Single-valued attribute
Wildcard character

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