Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? None of these SELECT SUB FROM BOOK SELECT DISTINCT SUB FROM BOOK All of these SELECT ALL FROM BOOK None of these SELECT SUB FROM BOOK SELECT DISTINCT SUB FROM BOOK All of these SELECT ALL FROM BOOK ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: identifies a column. identifies a row. can only be one column. must always be composed of two or more columns. identifies a column. identifies a row. can only be one column. must always be composed of two or more columns. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM? DB2 IDMS dBase-II R:base DB2 IDMS dBase-II R:base ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The following are components of a database except ________ . user data reports metadata indexes user data reports metadata indexes ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An operation that will increase the length of a list is Look-up All of the listed here Modify Insert Look-up All of the listed here Modify Insert ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove a table from the database in SQL? UNATTACH TABLE ERASE TABLE DELETE TABLE DROP TABLE UNATTACH TABLE ERASE TABLE DELETE TABLE DROP TABLE ANSWER DOWNLOAD EXAMIANS APP
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