Introduction to Database System For some relations, changing the data can have undesirable consequences called: normal forms. transitive dependencies. modification anomalies. referential integrity constraints. normal forms. transitive dependencies. modification anomalies. referential integrity constraints. 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? dBase-II IDMS R:base DB2 dBase-II IDMS R:base DB2 ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A file produced by a spreadsheet all of the listed here can be used as it by the DBMS is generally stored on disk in an ASCII text format can be used for graphic all of the listed here can be used as it by the DBMS is generally stored on disk in an ASCII text format can be used for graphic ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is All of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these dividing documents to be entered into batches All of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these dividing documents to be entered into batches ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following refers to something that can be identified in the user's work environment, something that the users want to track? Relationship Identifier Entity Attribute Relationship Identifier Entity Attribute ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents an actual occurrence of an associated generalized entity? Instance entity Subtype entity Archetype entity Supertype entity Instance entity Subtype entity Archetype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
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