Introduction to Database System Keys made up of two or more attributes are called composite keys. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: 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. identifies a column. identifies a row. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A compound key uniquely identifies an item in a list is a combination of each unique key is made up a several pieces of information None of these both (a) and (b) uniquely identifies an item in a list is a combination of each unique key is made up a several pieces of information None of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Because it contains a description of its own structure, a database is considered to be ________ . described an application program metadata compatible self-describing described an application program metadata compatible self-describing ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When performing a look-up operation using a form None of these you type the key in an entry line, and the correct form is displayed you look at each form sequentially until you see the one you want you enter the search value into the form All of these None of these you type the key in an entry line, and the correct form is displayed you look at each form sequentially until you see the one you want you enter the search value into the form All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The model for a _____ resembles the hierarchical model in many respects. Network database Hierarchical database None of these Distributed database Relational database Network database Hierarchical database None of these Distributed database Relational database ANSWER DOWNLOAD EXAMIANS APP
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