Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The modify operation is likely to be done after None of these Delete All of these Look-up Insert None of these Delete All of these Look-up Insert ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields. Hierarchical Network None of these Relational Object-Oriented Hierarchical Network None of these Relational Object-Oriented ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "records". False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If a piece of data is stored in two places in the database, then changing the data is one spot will cause data inconsistency both (a) and (b) storage space is wasted None of these it can be more easily accessed changing the data is one spot will cause data inconsistency both (a) and (b) storage space is wasted None of these it can be more easily accessed ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? Data field Characters Bits None of the listed here Data field Characters Bits None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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