14 In the following diagram, which of the answers below is true A Each patient has one of more patient histories B3 Each patient has one and only one visit C Each patient history belongs to zero and one patient D Each patient history belongs to many patients 15 What will be returned when the following SQL statement is executed SELECT driver no,count () as num deliveries FROM deliveries GROUP BY driver no A A listing of all drivers, sorted by driver number B A listing of each driver as well as the number of deliveries that he or she has made C A count of all of the deliveries made by all drivers D An errot message TRUE FALSE QUESTIONS Choose 'True' if the statement is true and 'False' if the statement is false Each correct answer 5 points, each wrong answer 5 points) (IN EXAM Each correct answer 2 points, each wrong answer 2 points) 1 (TRUE FALSE) Adding notations to the EER diagram regarding data volumes and usage is of little value to the physical design process 2 (TRUE FALSE) One objective of selecting a data type is to minimize storage space 3 (TRUE FALSE) A range control limits the set of permissible values that a field may assume 4 (TRUE FALSE) In a sequential file, the records are stored in sequence according to a primary key value 5 (TRUE FALSE) Horizontal partitioning refers to the process of combining several smaller relations into a larger table

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14  In the following diagram, which of the answers below is true  A Each patient has one of more patient histories  B3 Each patient has one and only one visit  C Each patient history belongs to zero and one patient  D Each patient history belongs to many patients  15  What will be returned when the following SQL statement is executed  SELECT driver no,count () as num deliveries FROM deliveries GROUP BY driver no  A A listing of all drivers, sorted by driver number B A listing of each driver as well as the number of deliveries that he or she has made C A count of all of the deliveries made by all drivers D An errot message  TRUE FALSE QUESTIONS  Choose 'True' if the statement is true and 'False' if the statement is false  Each correct answer  5 points, each wrong answer  5 points) (IN EXAM  Each correct answer  2 points, each wrong answer  2 points) 1  (TRUE FALSE) Adding notations to the EER diagram regarding data volumes and usage is of little value to the physical design process  2  (TRUE  FALSE) One objective of selecting a data type is to minimize storage space  3  (TRUE FALSE) A range control limits the set of permissible values that a field may assume  4  (TRUE  FALSE) In a sequential file, the records are stored in sequence according to a primary key value  5  (TRUE FALSE) Horizontal partitioning refers to the process of combining several smaller relations into a larger table

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14. In the following diagram, which of the answers below is true? A Each patient has one of more patient histories. B3 Each patient has

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Transactions And Database Dynamics 8th International Workshop On Foundations Of Models And Languages For Data And Objects Dagstuhl Castle Germany September 1999 Selected Papers Lncs 1773

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