Can u help me to a)Mapping ERD to Relational Schema : This all data : Employee (empNo, ename, hiredate, DOB, phoneNo, gender, salary, commission, position, grade) Transaction (transactiondate, empNo, username, position) Login (ID, password) Grade (grade, salaryRange) Position (position, allowance) Allowance (allowance, allowanceDescription) Vehicle (empNo, make, model, nextMaintenance) Project (projectNo, projectName) Department (deptNo, deptName, deptDescription, totalEmpNo) Employee_Project (empNo, projectNo) Explanation: To map the ERD (Entity Relationship Diagram) to a relational schema, we need to identify the entities, relationships, and attributes in the diagram and convert them to tables, columns, and relationships in a relational database. Please need to maping as schedules By this program in the link https://youtu.be/CZTkgMoqVss U have all data only need to draw ?? Here is the relational schema for the entities provided: Employee (empno PK, ename, hiredate, DOB, PhoneNo, gender, salary, commission, grade) Transaction (transno PK, transactionDate, empno FK, username, position) Login (ID PK, password) Grade (grade PK, salary_range) Position (position PK, pname) Allowance (allowance PK, aname, description) Vehicle (vehicleno PK, next_maintenance, model, make, empno FK) Project (projectNo PK, projectName) Department (deptNo PK, deptName, description, totalEmpNo) Step 2/3 b) Adding Foreign keys : Employee (empNo, ename, hiredate, DOB, phoneNo, gender, salary, commission, position, grade) position references Position(position) grade references Grade(grade) Transaction (transactionDate, empNo, username, position) empNo references Employee(empNo) Login (ID, password) Grade (grade, salaryRange) Position (position, allowance) allowance references Allowance(allowance) Allowance (allowance, allowanceDescription) Vehicle (empNo, make, model, nextMaintenance) empNo references Employee(empNo) Project (projectNo, projectName) Department (deptNo, deptName, deptDescription, totalEmpNo) deptNo references Department(deptNo) Employee_Project (empNo, projectNo) empNo references Employee(empNo) projectNo references Project(projectNo) Explanation: Adding Foreign Keys: In the above relational schema, we have identified the primary keys for each table. Now, we need to add foreign keys to the tables to establish relationships between them. Here are the foreign keys for each table: Employee (grade FK references Grade(grade)) Transaction (empno FK references Employee(empno), position FK references Position(position)) Vehicle (empno FK references Employee(empno)) Department (projectNo FK references Project(projectNo)) like a picture I attached please do it like the picture

Can u help me to a)Mapping ERD to Relational Schema : This all data : Employee (empNo, ename, hiredate, DOB, phoneNo, gender, salary, commission, position, grade) Transaction (transactiondate, empNo, username, position) Login (ID, password) Grade (grade, salaryRange) Position (position, allowance) Allowance (allowance, allowanceDescription) Vehicle (empNo, make, model, nextMaintenance) Project (projectNo, projectName) Department (deptNo, deptName, deptDescription, totalEmpNo) Employee_Project (empNo, projectNo) Explanation: To map the ERD (Entity Relationship Diagram) to a relational schema, we need to identify the entities, relationships, and attributes in the diagram and convert them to tables, columns, and relationships in a relational database. Please need to maping as schedules By this program in the link https://youtu.be/CZTkgMoqVss U have all data only need to draw ?? Here is the relational schema for the entities provided: Employee (empno PK, ename, hiredate, DOB, PhoneNo, gender, salary, commission, grade) Transaction (transno PK, transactionDate, empno FK, username, position) Login (ID PK, password) Grade (grade PK, salary_range) Position (position PK, pname) Allowance (allowance PK, aname, description) Vehicle (vehicleno PK, next_maintenance, model, make, empno FK) Project (projectNo PK, projectName) Department (deptNo PK, deptName, description, totalEmpNo) Step 2/3 b) Adding Foreign keys : Employee (empNo, ename, hiredate, DOB, phoneNo, gender, salary, commission, position, grade) position references Position(position) grade references Grade(grade) Transaction (transactionDate, empNo, username, position) empNo references Employee(empNo) Login (ID, password) Grade (grade, salaryRange) Position (position, allowance) allowance references Allowance(allowance) Allowance (allowance, allowanceDescription) Vehicle (empNo, make, model, nextMaintenance) empNo references Employee(empNo) Project (projectNo, projectName) Department (deptNo, deptName, deptDescription, totalEmpNo) deptNo references Department(deptNo) Employee_Project (empNo, projectNo) empNo references Employee(empNo) projectNo references Project(projectNo) Explanation: Adding Foreign Keys: In the above relational schema, we have identified the primary keys for each table. Now, we need to add foreign keys to the tables to establish relationships between them. Here are the foreign keys for each table: Employee (grade FK references Grade(grade)) Transaction (empno FK references Employee(empno), position FK references Position(position)) Vehicle (empno FK references Employee(empno)) Department (projectNo FK references Project(projectNo)) like a picture I attached please do it like the picture

Database Systems: Design, Implementation, & Management

12th Edition

ISBN:9781305627482

Author:Carlos Coronel, Steven Morris

Publisher:Carlos Coronel, Steven Morris

Chapter9: Database Design

Section: Chapter Questions

Problem 6P

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