Introduction to Database System A database has data and relationships. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier? Weak entity ID- independent entity Strong entity ID-dependent entity Weak entity ID- independent entity Strong entity ID-dependent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A good query system allows non-programmers to access information stored in a database can be accessed only by data processing professionals can accept English language commands None of these both (a) and (b) allows non-programmers to access information stored in a database can be accessed only by data processing professionals can accept English language commands None of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A command that lets you change one or more fields in a record is Look-up None of these All of these Modify Insert Look-up None of these All of these Modify Insert ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? SELECT SUB FROM BOOK None of these SELECT ALL FROM BOOK SELECT DISTINCT SUB FROM BOOK All of these SELECT SUB FROM BOOK None of these SELECT ALL FROM BOOK SELECT DISTINCT SUB FROM BOOK All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If you want your database to include methods, you should use a _____ database. Hierarchical Object-Oriented Network Distributed Hierarchical Object-Oriented Network Distributed ANSWER DOWNLOAD EXAMIANS APP
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