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? Strong entity Weak entity ID-dependent entity ID- independent entity Strong entity Weak entity ID-dependent entity ID- independent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following is a single-entity instance of one type related to many entity instances of another type? Composite Relationship One-to-Many Relationship One-to-One Relationship Many-to-Many Relationship Composite Relationship One-to-Many Relationship One-to-One Relationship Many-to-Many Relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database can use aggregate functions like SUM and COUNT are written in English None of these All of these both (a) and (b) can use aggregate functions like SUM and COUNT are written in English None of these All of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The index consists of None of these a list of keys both (a) and (b) All of these pointers to the master list None of these a list of keys both (a) and (b) All of these pointers to the master list ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When you have finished entering information into a form the template is written to the data file the contents of the form are written to the data file the contents of the form can be printed All of the listed here the template is written to the data file the contents of the form are written to the data file the contents of the form can be printed All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products implemented the CODASYL DBTG model? dBase-II DB2 IDMS R:base dBase-II DB2 IDMS R:base ANSWER DOWNLOAD EXAMIANS APP
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