Introduction to Database System A logical schema is a standard way of organizing information into accessible parts describes how data is actually stored on disk is the entire database All of these None of these is a standard way of organizing information into accessible parts describes how data is actually stored on disk is the entire database All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database All of these can use aggregate functions like SUM and COUNT both (a) and (b) None of these are written in English All of these can use aggregate functions like SUM and COUNT both (a) and (b) None of these are written in English ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In order to use a record management system All of these You need to understand the model the record management system uses. None of these You need to understand the low-level details of how information in stored Both (a) and (b) All of these You need to understand the model the record management system uses. None of these You need to understand the low-level details of how information in stored Both (a) and (b) 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 DISTINCT None of these SELECT UNIQUE SELECT DIFFERENT All of these SELECT DISTINCT None of these SELECT UNIQUE SELECT DIFFERENT All 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 hashed file an indexed file None of these a sequential file a tree file a hashed file an indexed file None of these a sequential file a tree file ANSWER DOWNLOAD EXAMIANS APP
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