Introduction to Database System Which of the following is not characteristic of a relational database model? records tables complex logical relationships treelike structure records tables complex logical relationships treelike structure ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The highest level in the hierarchy of data organization is called data bank database data record data file data bank database data record data file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time? None of these report writer transaction log query language data manipulation language None of these report writer transaction log query language data manipulation language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n): referential integrity constraint. transitive dependency. normal form. insertion anomaly. referential integrity constraint. transitive dependency. normal form. insertion anomaly. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An identifier determines the type of relationship that an entity has. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System For some relations, changing the data can have undesirable consequences called: referential integrity constraints. normal forms. transitive dependencies. modification anomalies. referential integrity constraints. normal forms. transitive dependencies. modification anomalies. ANSWER DOWNLOAD EXAMIANS APP
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