Introduction to Database System A recursive relationship is a relationship between an entity and ________ . an instance entity a subtype entity an archetype entity itself an instance entity a subtype entity an archetype entity itself 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. Network database Relational database Distributed database Hierarchical database Network database Relational database Distributed database Hierarchical database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction? PACK COMMIT SAVE ZIP PACK COMMIT SAVE ZIP ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Batch processing is appropriate if only a few transactions are involved a large computer system is available All of these only a small computer system is available None of these only a few transactions are involved a large computer system is available All of these only a small computer system is available None of these 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 it can be more easily accessed both (a) and (b) changing the data is one spot will cause data inconsistency storage space is wasted None of these it can be more easily accessed both (a) and (b) changing the data is one spot will cause data inconsistency storage space is wasted ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A good query system can accept English language commands can be accessed only by data processing professionals allows non-programmers to access information stored in a database both (a) and (b) None of these can accept English language commands can be accessed only by data processing professionals allows non-programmers to access information stored in a database both (a) and (b) None of these ANSWER DOWNLOAD EXAMIANS APP
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