Introduction to Database System A logical schema is the entire database None of these All of these describes how data is actually stored on disk is a standard way of organizing information into accessible parts is the entire database None of these All of these describes how data is actually stored on disk is a standard way of organizing information into accessible parts ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database are written in English both (a) and (b) None of these All of these can use aggregate functions like SUM and COUNT are written in English both (a) and (b) None of these All of these can use aggregate functions like SUM and COUNT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In order to use a record management system None of these All of these Both (a) and (b) You need to understand the model the record management system uses. You need to understand the low-level details of how information in stored None of these All of these Both (a) and (b) You need to understand the model the record management system uses. You need to understand the low-level details of how information in stored ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows SELECT DIFFERENT All of these SELECT UNIQUE SELECT DISTINCT None of these SELECT DIFFERENT All of these SELECT UNIQUE SELECT DISTINCT None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in a tree file None of these a hashed file an indexed file a sequential file a tree file None of these a hashed file an indexed file a sequential file ANSWER DOWNLOAD EXAMIANS APP
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