During the design of the actual database tables,the N:M relationship is broken down into a series of two or more 1:M relationships through the use of a linking table in the process of normalization.
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Q9: First normal form means that the data
Q10: A foreign key value must exist in
Q11: Redundant data is a big problem because
Q12: The purpose of normalization is to store
Q13: A customer database table with columns first_name,last_name,and
Q15: In a data file,a record contains one
Q16: There are two main tasks involved with
Q17: Oracle can automatically generate surrogate keys.
Q18: Database design is usually a very simple
Q19: A relational database was the earlier type
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