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? transaction log report writer query language None of these data manipulation language transaction log report writer query language None of these data manipulation language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A compound key None of these both (a) and (b) uniquely identifies an item in a list is made up a several pieces of information is a combination of each unique key None of these both (a) and (b) uniquely identifies an item in a list is made up a several pieces of information is a combination of each unique key ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? All of these increased security program/data independence elimination of the data redundancy ability to associate related data All of these increased security program/data independence elimination of the data redundancy ability to associate related data ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a _____ a parent record type can be linked to one or more "child" record types, but a child record type can have only one parent. Relational database Network database Distributed database Hierarchical database Relational database Network database Distributed database Hierarchical database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM? R:base DB2 dBase-II IDMS R:base DB2 dBase-II IDMS ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System After you _____ a record, many data management the environments require you to issue a command to save the changes you made. Index Delete Sort key Update Index Delete Sort key Update ANSWER DOWNLOAD EXAMIANS APP
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