Exam 7: Advanced SQL
Exam 1: The Database Environment and Development Process173 Questions
Exam 2: Modeling Data in the Organization121 Questions
Exam 3: The Enhanced E-R Model and Business Rules74 Questions
Exam 4: Logical Database Design and the Relational Model120 Questions
Exam 5: Physical Database Design and Performance105 Questions
Exam 6: Introduction to SQL119 Questions
Exam 7: Advanced SQL111 Questions
Exam 8: Database Application Development100 Questions
Exam 9: Data Warehousing117 Questions
Exam 10: Data Quality and Integration102 Questions
Exam 11: Data and Database Administration116 Questions
Exam 12: Distributed Databases109 Questions
Exam 13: Object-Oriented Data Modeling91 Questions
Exam 14: Using Relational Databases to Provide Object Persistence113 Questions
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The following SQL statement is an example of a correlated subquery:
select first_name,last_name,total_sales
from salesman s1
where total_sales > all
(select total_sales from salesman s2
where s1.salesman_id != s2.salesman_id);
(True/False)
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When a subquery is used in the FROM clause,it is called a(n)________.
(Short Answer)
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In order to embed SQL inside of another language,the ________ statement must be placed before the SQL in the host language.
(Multiple Choice)
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Discuss the differences between an equi-join,natural join and outer join.
(Essay)
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________ are extensions defined in SQL-99 that include the capability to create and drop modules of code stored in the database schema across user sessions.
(Short Answer)
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A ________ is a temporary table used in the FROM clause of an SQL query.
(Multiple Choice)
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________ consists of hard-coded SQL statements within another language,such as Java or C.
(Short Answer)
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In SQL,a(n)________ subquery is a type of subquery in which processing the inner query depends on data from the outer query.
(Multiple Choice)
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One major disadvantage of the outer join is that information is easily lost.
(True/False)
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The ________ clause is used to combine the output from multiple queries into a single result table.
(Short Answer)
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A ________ is a stored subroutine that returns only one value and has only input parameters.
(Short Answer)
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EXISTS will take a value of ________ if the subquery returns an intermediate results table which contains one or more rows.
(Short Answer)
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________ takes a value of true if a subquery returns an intermediate results table which contains one or more rows.
(Multiple Choice)
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IF-THEN-ELSE logical processing cannot be accomplished within an SQL statement.
(True/False)
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________ use the result of the outer query to determine the processing of the inner query.
(Short Answer)
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