Introduction to Database System Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM? dBase-II DB2 IDMS R:base dBase-II DB2 IDMS R:base 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? Characters Data field None of the listed here Bits Characters Data field None of the listed here Bits ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A top-to-bottom relationship among the items in a database is established by a Relational schema Hierarchical schema Network schema All of the listed here Relational schema Hierarchical schema Network schema All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A network schema permits many-to-many relation¬ships restricts the structure to a one-to-many relationship stores data in tables All of the listed here permits many-to-many relation¬ships restricts the structure to a one-to-many relationship stores data in tables All 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 storage space is wasted it can be more easily accessed None of these both (a) and (b) changing the data is one spot will cause data inconsistency storage space is wasted it can be more easily accessed None of these both (a) and (b) changing the data is one spot will cause data inconsistency ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, the ALTER TABLESPACE command is used to change storage characteristics to take a tablespace online/offline All of the listed here to add/rename data files to change storage characteristics to take a tablespace online/offline All of the listed here to add/rename data files ANSWER DOWNLOAD EXAMIANS APP
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