Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Subtype entity Instance entity Archetype entity Supertype entity Subtype entity Instance entity Archetype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to create a synonym for a schema object? CREATE SYNONYM All of the listed here CREATE SCHEMA CREATE SAME CREATE SYNONYM All of the listed here CREATE SCHEMA CREATE SAME ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Periodically adding, changing and deleting file records is called file renewing Updating restructuring upgrading renewing Updating restructuring upgrading ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A command that lets you change one or more fields in a record is Look-up Insert Modify None of these All of these Look-up Insert Modify None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When you have finished entering information into a form the template is written to the data file the contents of the form are written to the data file All of the listed here the contents of the form can be printed the template is written to the data file the contents of the form are written to the data file All of the listed here the contents of the form can be printed ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: identifies a column. identifies a row. must always be composed of two or more columns. can only be one column. identifies a column. identifies a row. must always be composed of two or more columns. can only be one column. ANSWER DOWNLOAD EXAMIANS APP
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