Exam 7: Introduction to Structured Query Language Sql
Exam 1: Database Systems75 Questions
Exam 2: Data Models75 Questions
Exam 3: The Relational Database Model75 Questions
Exam 4: Entity Relationship Er Modeling75 Questions
Exam 5: Advanced Data Modeling75 Questions
Exam 6: Normalization of Database Tables75 Questions
Exam 7: Introduction to Structured Query Language Sql75 Questions
Exam 8: Advanced Sql75 Questions
Exam 9: Database Design75 Questions
Exam 10: Transaction Management and Concurrency Control74 Questions
Exam 11: Database Performance Tuning and Query Optimization75 Questions
Exam 12: Distributed Database Management Systems74 Questions
Exam 13: Business Intelligence and Data Warehouses74 Questions
Exam 14: Big Data and Nosql75 Questions
Exam 15: Database Connectivity and Web Technologies73 Questions
Exam 16: Database Administration and Security74 Questions
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Oracle users can use the Access QBE (query by example) query generator.
(True/False)
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A(n) _____ character is a symbol that can be used as a general substitute for other characters or commands.
(Short Answer)
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The _____ command defines a default value for a column when no value is given.
(Multiple Choice)
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The _____ operator could be used in place of EXCEPT (MINUS) if the DBMS does not support it.
(Short Answer)
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In Oracle, the _____ function converts a date to a character string.
(Multiple Choice)
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The conditional LIKE must be used in conjunction with wildcard characters.
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Although SQL commands can be grouped together on a single line, complex command sequences are best shown on separate lines, with space between the SQL command and the command's components.
(True/False)
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A(n) _____, also known as a nested query or an inner query, is a query that is embedded (or nested) inside another query.
(Short Answer)
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How many rows would be returned from a cross join of tables A and B, if A contains 8 rows and B contains 18?
(Multiple Choice)
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A(n) _____ query specifies which data should be retrieved and how it should be filtered, aggregated, and displayed.
(Multiple Choice)
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Rows can be grouped into smaller collections quickly and easily using the _____ clause within the SELECT statement.
(Short Answer)
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Which query is used to list a unique value for V_CODE, where the list will produce only a list of those values that are different from one another?
(Multiple Choice)
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If a designer wishes to create an inner join, but the two tables do not have a commonly named attribute, he can use a(n) _____ clause.
(Multiple Choice)
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An alias cannot be used when a table is required to be joined to itself in a recursive query.
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