Introduction to Database System After you _____ a record, many data management the environments require you to issue a command to save the changes you made. Delete Index Sort key Update Delete Index Sort key Update ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Given the functional dependency R → S , R is called the determinant. 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? Strong entity ID- independent entity ID-dependent entity Weak entity Strong entity ID- independent entity ID-dependent entity Weak entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attributes A and B determine attribute C, then it is also true that: C is a determinant. (A,B) is a composite determinant. A → B → C is a determinant. (A,B) is a composite determinant. A → B → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A network schema restricts the structure to a one-to-many relationship All of the listed here permits many-to-many relation¬ships stores data in tables restricts the structure to a one-to-many relationship All of the listed here permits many-to-many relation¬ships stores data in tables ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The DBMS acts as an interface between what two components of an enterprise-class database system? Database application and SQL Database application and the database Data and the database The user and the database application Database application and SQL Database application and the database Data and the database The user and the database application ANSWER DOWNLOAD EXAMIANS APP
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