Introduction to Database System A network schema permits many-to-many relation¬ships All of the listed here stores data in tables restricts the structure to a one-to-many relationship permits many-to-many relation¬ships All of the listed here stores data in tables restricts the structure to a one-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database All of these can use aggregate functions like SUM and COUNT both (a) and (b) are written in English None of these All of these can use aggregate functions like SUM and COUNT both (a) and (b) are written in English None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A database management system allows simultaneous access to multiple files None of the listed here can do more than a record management system Both of the listed here allows simultaneous access to multiple files None of the listed here can do more than a record management system Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If a piece of data is stored in two places in the database, then None of these both (a) and (b) storage space is wasted it can be more easily accessed changing the data is one spot will cause data inconsistency None of these both (a) and (b) storage space is wasted it can be more easily accessed changing the data is one spot will cause data inconsistency ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains the names of all fields in all files All of these the data types of all fields in all files None of these the widths of all fields in all files the names of all fields in all files All of these the data types of all fields in all files None of these the widths of all fields in all files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that: A → (B,C). (B,C) → A → A → A → (B,C). (B,C) → A → A → ANSWER DOWNLOAD EXAMIANS APP
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