Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows SELECT DISTINCT All of these None of these SELECT UNIQUE SELECT DIFFERENT SELECT DISTINCT All of these None of these SELECT UNIQUE SELECT DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which two files are used during operation of the DBMS? data dictionary and transaction log data dictionary and query language query language and utilities None of the listed here data dictionary and transaction log data dictionary and query language query language and utilities None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The XML family of standards is very important in database processing today. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System To have a file hold a list, it is necessary to identify the records in the list identify the name, width and type of the fields of each record. All of the listed here decide which fields will be used as sort or index keys identify the records in the list identify the name, width and type of the fields of each record. All of the listed here decide which fields will be used as sort or index keys ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to create a synonym for a schema object? All of the listed here CREATE SAME CREATE SYNONYM CREATE SCHEMA All of the listed here CREATE SAME CREATE SYNONYM CREATE SCHEMA ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A logical schema All of these describes how data is actually stored on disk None of these is the entire database is a standard way of organizing information into accessible parts All of these describes how data is actually stored on disk None of these is the entire database is a standard way of organizing information into accessible parts ANSWER DOWNLOAD EXAMIANS APP
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