Introduction to Database System To have a file hold a list, it is necessary to All of the listed here decide which fields will be used as sort or index keys identify the name, width and type of the fields of each record. identify the records in the list All of the listed here decide which fields will be used as sort or index keys identify the name, width and type of the fields of each record. identify the records in the list ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a logical data-base structure? tree relational network chain tree relational network chain ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to add a column/integrity constraint to a table ALTER TABLE INSERT COLUMN ADD COLUMN MODIFY TABLE ALTER TABLE INSERT COLUMN ADD COLUMN MODIFY TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An on-line commercial site such as Amazon.com is an example of a(n) ________ . single-user database application e-commerce database application data mining database application multiuser database application single-user database application e-commerce database application data mining database application multiuser database application 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) None of these storage space is wasted it can be more easily accessed changing the data is one spot will cause data inconsistency both (a) and (b) None of these storage space is wasted it can be more easily accessed ANSWER DOWNLOAD EXAMIANS APP
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