Introduction to Database System Which of the following is not a logical data-base structure? chain network tree relational chain network tree relational ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A subtype entity is a special case of another entity called a supertype entity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An indexing operation sorts a file using a single key None of the listed here sorts file using two keys establishes an index for a file sorts a file using a single key None of the listed here sorts file using two keys establishes an index for a file ANSWER DOWNLOAD EXAMIANS APP
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? report writer transaction log query language None of these data manipulation language report writer transaction log query language None of these data manipulation language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A good query system can accept English language commands None of these can be accessed only by data processing professionals both (a) and (b) allows non-programmers to access information stored in a database can accept English language commands None of these can be accessed only by data processing professionals both (a) and (b) allows non-programmers to access information stored in a database 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? Attribute Relationship Entity Identifier Attribute Relationship Entity Identifier ANSWER DOWNLOAD EXAMIANS APP
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