Practice More Quizzes:
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Identify the text pattern in this problem statement. Retrieve details of commercial water users who are not commercial business taxpayers. There is no 1-M relationship between commercial water users and commercial tax payers.
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Identify the text pattern in this problem statement. Retrieve details of products without sales. There is a 1-M relationship from product to sales.
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What relational operator produces a table in which values of a column from one input table are associated with all the values from a column of the second table?
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What happens to unmatched rows with the full outer join operator?
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What is the meaning of the LEFT keyword in the FROM clause such as Table1 LEFT JOIN Table2?
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A nested query in the FROM clause is necessary to compute nested aggregate calculations because the SELECT statement does not allow an aggregate function inside an aggregate function.
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What happens to unmatched rows with the one-sided outer join operator?
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The SELECT statement pattern for containment exceptions uses
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When mixing inner joins with a one-sided outer join, does the order of operations (joins and one-sided outer join) typically matter?
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What type of join column may be a candidate for a one-sided outer join?
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What are distinguishing features about Type I nested queries? More than one answer is possible.
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When can you NOT use a Type I nested query to perform a join in a SELECT statement?
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When must you use a Type I nested query in an UPDATE or DELETE statement?
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Indicate reasons for using a nested query in the FROM clause. Multiple answers are possible.
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In a university with graduate teaching instructors, a query to determine faculty who are not students is an example of a membership exception.
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Identify the key element of the text pattern for contaiment exceptions.
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Identify the key element of the text pattern for membership exceptions.
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The SELECT statement pattern for membership exceptions uses
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The choice of a join style is a matter of preference except for applicability of the join style.
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Indicate when a SELECT statement for a containment exception should use the DISTINCT keyword inside the COUNT function in the HAVING condition.
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