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