Exam 3: The Relational Model 2: SQL
Exam 1: Introduction to Database Management50 Questions
Exam 2: The Relational Model 1: Introduction, QBE, and Relational Algebra50 Questions
Exam 3: The Relational Model 2: SQL74 Questions
Exam 4: The Relational Model 3: Advanced Topics50 Questions
Exam 5: Database Design 1: Normalization50 Questions
Exam 6: Database Design 2: Design Method75 Questions
Exam 7: Dbms Functions50 Questions
Exam 8: Database Administration50 Questions
Exam 9: Database Management Approaches75 Questions
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When you use a name containing a space in Access SQL,you must ____.
(Multiple Choice)
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In Access SQL,the ____ is used as a wildcard to represent any individual character.
(Multiple Choice)
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What are some common restrictions place on table and column names by DBMSs?
(Short Answer)
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When rows are grouped,one line of output is produced for each group.
(True/False)
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Most relational DBMSs use a version of SQL as a data manipulation language.
(True/False)
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In Access,you can combine values in character fields into a single computed field by using the ____________________ operator.
(Short Answer)
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A WHERE and a HAVING clause cannot be included in the same query.
(True/False)
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Describe five data types that you will often encounter when working with databases.
(Essay)
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The ____________________ of two tables is a table containing all rows that are in either the first table,the second table,or both.
(Short Answer)
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Based on the code above,list the descriptions of all parts that are located in Warehouse 3 or for which there are more than 20 units on hand,or both.
(Multiple Choice)
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Based on the code above,change the Zip code of the student with ID 11433 to 14455.
(Multiple Choice)
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Based on the code above,for each sales rep,list the rep number,the number of customers assigned to the rep,and the average balance of the rep's customers. Group the records by rep number and order the records by rep number.
(Multiple Choice)
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One common restriction placed on table and column names by DBMSs is that names can contain only letters,numbers,and ____________________.
(Short Answer)
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Many versions of SQL,including MySQL,use the ____________________ as a wildcard to represent any individual character.
(Short Answer)
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When you place one query inside another,the inner query is called a(n)____________________.
(Short Answer)
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