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    the ________ keyword is used to access attributes of preceding tables or subqueries in the from clause.

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    The ________ keyword is used to access attributes of preceding tables or subqueries in the from clause.

    The ________ keyword is used to access attributes of preceding tables or subqueries in the from clause. (a) In (b) Lateral (c) Having (d) With

    The ________ keyword is used to access attributes of preceding tables or subqueries in the from clause.

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    Question is ⇒ He ________ keyword is used to access attributes of preceding tables or subqueries in the from clause., Options are ⇒ (A) Lateral, (B) With, (C) Having, (D) In, (E) , Leave your comments or Download question paper.

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    Q1. He ________ keyword is used to access attributes of preceding tables or subqueries in the from clause.

    A.  Lateral B.  With C.  Having D.  In View Answer   1 -2 Explanation:- Answer : A

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    Database Interview Questions and Answers

    This set of Database Interview Questions and Answers focuses on “Aggregate Functions and Nested Subqueries – 2”. 1. SELECT dept_name, ID, avg (salary) FROM instructor GROUP BY dept_name; This statement IS erroneous because a) Avg(salary) should not be selected b) Dept_id should not be used in group by clause c) Misplaced group by clause d) ... Read more

    Database Questions and Answers – Aggregate Functions and Nested Subqueries – 2

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    This set of Database Interview Questions and Answers focuses on “Aggregate Functions and Nested Subqueries – 2”.

    1.

    SELECT dept_name, ID, avg (salary)

    FROM instructor GROUP BY dept_name;

    This statement IS erroneous because

    a) Avg(salary) should not be selected

    b) Dept_id should not be used in group by clause

    c) Misplaced group by clause

    d) Group by clause is not valid in this query

    View Answer

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    2. SQL applies predicates in the _______ clause after groups have been formed, so aggregate functions may be used.

    a) Group by b) With c) Where d) Having View Answer

    3. Aggregate functions can be used in the select list or the_______clause of a select statement or subquery. They cannot be used in a ______ clause.

    a) Where, having b) Having, where c) Group by, having d) Group by, where View Answer

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    4. The ________ keyword is used to access attributes of preceding tables or subqueries in the from clause.

    a) In b) Lateral c) Having d) With View Answer advertisement

    5. Which of the following creates a temporary relation for the query on which it is defined?

    a) With b) From c) Where d) Select View Answer advertisement 6.

    WITH max_budget (VALUE) AS

    (SELECT MAX(budget) FROM department) SELECT budget

    FROM department, max_budget

    WHERE department.budget = MAX budget.value;

    In the query given above which one of the following is a temporary relation?

    a) Budget b) Department c) Value d) Max_budget View Answer

    7. Subqueries cannot:

    a) Use group by or group functions

    b) Retrieve data from a table different from the one in the outer query

    c) Join tables

    d) Appear in select, update, delete, insert statements.

    View Answer

    8. Which of the following is not an aggregate function?

    a) Avg b) Sum c) With d) Min View Answer

    9. The EXISTS keyword will be true if:

    a) Any row in the subquery meets the condition only

    b) All rows in the subquery fail the condition only

    c) Both of these two conditions are met

    d) Neither of these two conditions is met

    View Answer

    10. How can you find rows that do not match some specified condition?

    a) EXISTS

    b) Double use of NOT EXISTS

    c) NOT EXISTS

    d) None of the mentioned

    View Answer

    Sanfoundry Global Education & Learning Series – Database Management System.

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