Restrict Author where Country = U. S. giving Results7
Chapter 5, Problem 7(choose chapter or problem)
Use the following relation tables and write the results of the operations. These tables are sorted by primary key (or in the case of the Writes table, by the first component of the primary key), which is not required but is useful for Exercise 25. Many database systems maintain data in sorted order by primary key using a tree structure
Restrict Author where Country = “U. S.” giving Results 7
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