Introduction to Database System The activity of a file if high, reduces processing efficiency for sequential and nonsequential files is a measure of the percentage of existing records updated during a run refers to how closely the files fits into the allocated None of these is a low percentages of number of records added or deleted from a file if high, reduces processing efficiency for sequential and nonsequential files is a measure of the percentage of existing records updated during a run refers to how closely the files fits into the allocated None of these is a low percentages of number of records added or deleted from a file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The DBMS that is most difficult to use is ________ . Oracle Corporation's Oracle IBM's DB2 Microsoft's SQL Server Microsoft's Access Oracle Corporation's Oracle IBM's DB2 Microsoft's SQL Server Microsoft's Access ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Properties that describe the characteristics of entities are called: relationships. entities. attributes. identifiers. relationships. entities. attributes. identifiers. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A DBMS that combines a DBMS and an application generator is ________ . Microsoft's Access IBM's DB2 Oracle Corporation's Oracle Microsoft's SQL Server Microsoft's Access IBM's DB2 Oracle Corporation's Oracle Microsoft's SQL Server ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In the relational model, relationships between relations or tables are created by using: foreign keys. candidate keys. composite keys. determinants. foreign keys. candidate keys. composite keys. determinants. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Relations are categorized into normal forms according to the referential integrity constraints that they have. False True False True ANSWER DOWNLOAD EXAMIANS APP
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