Introduction to Database System For some relations, changing the data can have undesirable consequences called: referential integrity constraints. transitive dependencies. normal forms. modification anomalies. referential integrity constraints. transitive dependencies. normal forms. modification anomalies. 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? data manipulation language query language None of these report writer transaction log data manipulation language query language None of these report writer transaction log 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 Weak entity ID-dependent entity Strong entity ID- independent entity Weak entity ID-dependent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The _____ command is used to allocates an extent for the table in SQL REDEFINE TABLE ALTER TABLE MODIFY ALLOCATES MODIFY TABLE None of these REDEFINE TABLE ALTER TABLE MODIFY ALLOCATES MODIFY TABLE None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute is a(n): column of a table. key of a table. row of a table. two dimensional table. column of a table. key of a table. row of a table. two dimensional table. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System It is more accurate to define a _____ as a variety of different record types that are treated as a single unit Flat File Record None of these Table Database Flat File Record None of these Table Database ANSWER DOWNLOAD EXAMIANS APP
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