Introduction to Database System The activity of a file refers to how closely the files fits into the allocated 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 is a low percentages of number of records added or deleted from a file refers to how closely the files fits into the allocated 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 is a low percentages of number of records added or deleted from a file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove a table from the database in SQL? ERASE TABLE DELETE TABLE UNATTACH TABLE DROP TABLE ERASE TABLE DELETE TABLE UNATTACH TABLE DROP TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A multiple-form file management system lets you create a look-up form with an associated read-only password to prevent access by unauthorized users allow you to entry data in all the forms lets you define different forms for different operations both (a) and (b) None of these lets you create a look-up form with an associated read-only password to prevent access by unauthorized users allow you to entry data in all the forms lets you define different forms for different operations both (a) and (b) None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in 5NF when multivalued dependencies are isolated in their own relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The DBMS that is most difficult to use is ________ . IBM's DB2 Oracle Corporation's Oracle Microsoft's Access Microsoft's SQL Server IBM's DB2 Oracle Corporation's Oracle Microsoft's Access Microsoft's SQL Server ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A top-to-bottom relationship among the items in a database is established by a Hierarchical schema All of the listed here Relational schema Network schema Hierarchical schema All of the listed here Relational schema Network schema ANSWER DOWNLOAD EXAMIANS APP
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