MCQs>IT & Programming>Hadoop>Consider the following tables: Books ------ BookId BookName AuthorId SubjectId PopularityRating (the popularity of the book on a scale of 1 to 10) Language (such as French, English, German etc) Subjects --------- SubjectId Subject (such as History, Geography, Mathematics etc) Authors -------- AuthorId AuthorName Country What is the query to determine how many books have been written on each subject. Displaying Name of Subject and count of the Books?
Hadoop MCQs
Consider the following tables:
Books ------ BookId BookName AuthorId SubjectId PopularityRating (the popularity of the book on a scale of 1 to 10) Language (such as French, English, German etc)
Subjects --------- SubjectId Subject (such as History, Geography, Mathematics etc)
Authors -------- AuthorId AuthorName Country
What is the query to determine how many books have been written on each subject. Displaying Name of Subject and count of the Books?
Answer
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