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