Introduction to Database System A recursive relationship is a relationship between an archetype and an instance of that archetype. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Instance entity Archetype entity Subtype entity Supertype entity Instance entity Archetype entity Subtype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary doesn't provide information about: It will be the dominant data base of the future It allows a many-to-many relationship the size of the disk storage device It is conceptually simple where data is located It will be the dominant data base of the future It allows a many-to-many relationship the size of the disk storage device It is conceptually simple where data is located ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A multiple-form file management system lets you create a look-up form with an associated read-only password to prevent access by unauthorized users lets you define different forms for different operations allow you to entry data in all the forms None of these both (a) and (b) lets you create a look-up form with an associated read-only password to prevent access by unauthorized users lets you define different forms for different operations allow you to entry data in all the forms None of these both (a) and (b) 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? dBase-II IDMS R:base DB2 dBase-II IDMS R:base DB2 ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? SELECT ALL FROM BOOK SELECT DISTINCT SUB FROM BOOK None of these All of these SELECT SUB FROM BOOK SELECT ALL FROM BOOK SELECT DISTINCT SUB FROM BOOK None of these All of these SELECT SUB FROM BOOK ANSWER DOWNLOAD EXAMIANS APP
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