Introduction to Database System The different classes of relations created by the technique for preventing modification anomalies are called: normal forms. referential integrity constraints. functional dependencies. None of these normal forms. referential integrity constraints. functional dependencies. None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following refers to something that can be identified in the user's work environment, something that the users want to track? Entity Identifier Attribute Relationship Entity Identifier Attribute Relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A DBMS that combines a DBMS and an application generator is ________ . Microsoft's SQL Server Oracle Corporation's Oracle IBM's DB2 Microsoft's Access Microsoft's SQL Server Oracle Corporation's Oracle IBM's DB2 Microsoft's Access ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file if high, reduces processing efficiency for sequential and nonsequential files None of these is a measure of the percentage of existing records updated during a run refers to how closely the files fits into the allocated is a low percentages of number of records added or deleted from a file if high, reduces processing efficiency for sequential and nonsequential files None of these is a measure of the percentage of existing records updated during a run refers to how closely the files fits into the allocated is a low percentages of number of records added or deleted from a file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which two files are used during operation of the DBMS? query language and utilities None of the listed here data dictionary and query language data dictionary and transaction log query language and utilities None of the listed here data dictionary and query language data dictionary and transaction log ANSWER DOWNLOAD EXAMIANS APP
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