Exam 7: Introduction to Structured Query Language SQL
Exam 1: Database Systems72 Questions
Exam 2: Data Models75 Questions
Exam 3: The Relational Database Model74 Questions
Exam 4: Entity Relationship Ermodeling75 Questions
Exam 5: Advanced Data Modeling83 Questions
Exam 6: Normalization of Database Tables92 Questions
Exam 7: Introduction to Structured Query Language SQL92 Questions
Exam 8: Advanced SQL95 Questions
Exam 9: Database Design87 Questions
Exam 10: Transaction Management and Concurrency Control76 Questions
Exam 11: Database Performance Tuning and Query Optimization82 Questions
Exam 12: Distributed Database Management Systems72 Questions
Exam 13: Business Intelligence and Data Warehouses75 Questions
Exam 14: Big Data Analytics and NoSQL76 Questions
Exam 15: Database Connectivity and Web Technologies81 Questions
Exam 16: Database Administration and Security81 Questions
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Rows can be grouped into smaller collections quickly and easily using the clause within the SELECT statement.
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The CHECK constraint is used to define a condition for the values that the attribute domain cannot have.
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All changes in a table structure are made using the command,followed by a keyword that produces the specific changes a user wants to make.
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SQL requires the use of the ADD command to enter data into a table.
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A table can be deleted from the database by using the command.
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With the exception of the database process,most RDBMS vendors use SQL that deviates little from the ANSI standard SQL.
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The SQL command that allows a user to permanently save data changes is .
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If you have not yet used the COMMIT command to store the changes permanently in the database,you can restore the database to its previous condition with the ROLLBACK command.
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In the SQL environment,the word covers both questions and actions.
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A(n)order sequence is a multilevel ordered sequence that can be created easily by listing several attributes,separated by commas,after the ORDER BY clause.
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In Oracle,the command is used to change the display for a column,for example,to place a $ in front of a numeric value.
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Which of the following queries uses the correct SQL syntax to list the table contents for either V_CODE = 21344 or V_CODE = 24288?
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The ANSI prescribes a standard SQL-the current fully approved version is known as SQL07.
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Some RDBMSs,such as Oracle,automatically data changes when issuing data definition commands.
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