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