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The figure below shows the created tables (DOCTOR, APPOINTMENT and PATIENT). However, after you showed the created table to the DB programmers, they mentioned that the tables are not fully normalized. Which is the best suggestion that should be implemented to ensure the tables are at least in 3NF? A. The City, State and Postcode should be created as a new table since it City and State only dependent to Postcode (Transitive Dependency). B. Table APPOINTMENT still have partial dependencies where appointmentID only is the determinant for appDate and appTime. C. You insisted that the tables are already in 3NF and refused to make any changes. D. docEmpID should be removed from table APPOINTMENT because it already exists in table DOCTOR. Vhich of the following statements are NOT TRUE regarding constraints of uperclass/subclass relationship? The constraint of "And" indicates that an instance can only belongs to one subclass. I. The disjoint constraint determines whether an instance would belong to multiple subclasses at the same time or not. I. Constraint of "Mandatory" means that not every instance is categorized into the subclasses. V. The participation constraints determines whether all instances or some of the instances will be categorized into the subclasses. A. I, II B. All above C. I, I, II D. II, IV

The figure below shows the created tables (DOCTOR, APPOINTMENT and PATIENT). However, after you showed the created table to the DB programmers, they mentioned that the tables are not fully normalized. Which is the best suggestion that should be implemented to ensure the tables are at least in 3NF? A. The City, State and Postcode should be created as a new table since it City and State only dependent to Postcode (Transitive Dependency). B. Table APPOINTMENT still have partial dependencies where appointmentID only is the determinant for appDate and appTime. C. You insisted that the tables are already in 3NF and refused to make any changes. D. docEmpID should be removed from table APPOINTMENT because it already exists in table DOCTOR. Vhich of the following statements are NOT TRUE regarding constraints of uperclass/subclass relationship? The constraint of "And" indicates that an instance can only belongs to one subclass. I. The disjoint constraint determines whether an instance would belong to multiple subclasses at the same time or not. I. Constraint of "Mandatory" means that not every instance is categorized into the subclasses. V. The participation constraints determines whether all instances or some of the instances will be categorized into the subclasses. A. I, II B. All above C. I, I, II D. II, IV

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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The figure below shows the created tables (DOCTOR, APPOINTMENT and PATIENT). However, after you showed the created table to the DB programmers, they mentioned that the tables are not fully normalized. Which is the best suggestion that should be implemented to ensure the tables are at least in 3NF? A. The City, State and Postcode should be created as a new table since it City and State only dependent to Postcode (Transitive Dependency). B. Table APPOINTMENT still have partial dependencies where appointmentID only is the determinant for appDate and appTime. C. You insisted that the tables are already in 3NF and refused to make any changes. D. docEmplD should be removed from table APPOINTMENT because it already exists in table DOCTOR. Which of the following statements are NOT TRUE regarding constraints of superclass / subclass relationship? I. The constraint of "And" indicates that an instance can only belongs to one subclass. II. The disjoint constraint determines whether an instance would belong to multiple subclasses at the same time or not. II. Constraint of "Mandatory" means that not every instance is categorized into the subclasses. IV. The participation constraints determines whether all instances or some of the instances will be categorized into the subclasses. A. I, I B. All above C. I, I, II D. II, IV
Transcribed Image Text:The figure below shows the created tables (DOCTOR, APPOINTMENT and PATIENT). However, after you showed the created table to the DB programmers, they mentioned that the tables are not fully normalized. Which is the best suggestion that should be implemented to ensure the tables are at least in 3NF? A. The City, State and Postcode should be created as a new table since it City and State only dependent to Postcode (Transitive Dependency). B. Table APPOINTMENT still have partial dependencies where appointmentID only is the determinant for appDate and appTime. C. You insisted that the tables are already in 3NF and refused to make any changes. D. docEmplD should be removed from table APPOINTMENT because it already exists in table DOCTOR. Which of the following statements are NOT TRUE regarding constraints of superclass / subclass relationship? I. The constraint of "And" indicates that an instance can only belongs to one subclass. II. The disjoint constraint determines whether an instance would belong to multiple subclasses at the same time or not. II. Constraint of "Mandatory" means that not every instance is categorized into the subclasses. IV. The participation constraints determines whether all instances or some of the instances will be categorized into the subclasses. A. I, I B. All above C. I, I, II D. II, IV
please i need the answer within 20 minutes.please asap Table: DOCTOR docEmpID docFName docLName docPhone Table: PATIENT patientID patFName patLName patPhone City State Poscode Table: APPOINTMENT appointmentID patientID appTime appDate docEmplD
Transcribed Image Text:please i need the answer within 20 minutes.please asap Table: DOCTOR docEmpID docFName docLName docPhone Table: PATIENT patientID patFName patLName patPhone City State Poscode Table: APPOINTMENT appointmentID patientID appTime appDate docEmplD
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