Introduction to Database System In SQL, which of the following is not a data Manipulation Language Commands? CREATE UPDATE SELECT DELETE CREATE UPDATE SELECT DELETE 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 None of these SELECT UNIQUE All of these SELECT DISTINCT SELECT DIFFERENT None of these SELECT UNIQUE All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file. Fields Database File structure Records Fields Database File structure Records ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A subtype entity is a special case of another entity called a supertype entity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove a table from the database in SQL? ERASE TABLE DELETE TABLE DROP TABLE UNATTACH TABLE ERASE TABLE DELETE TABLE DROP TABLE UNATTACH TABLE ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS