A surrogate key is appropriate when the primary key of a table contains a lengthy text field.
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Q2: An entity needs to be examined according
Q3: By default,the identifier of the entity becomes
Q4: When creating a relational database design from
Q5: Each entity in the extended E-R model
Q6: The last step in creating a table
Q8: A surrogate key should be considered when
Q9: A null value is an attribute value
Q10: When creating a table in the relational
Q11: The values of a surrogate key have
Q12: One of the important properties of a
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