Consider the following Entities and Relationships [30 Marks]
Employee (emp_no, name, skill, payrate)
Position (posting_no, skill)
Relation between Employee and Position is Many to Many with day and shift as descriptive attribute.
Constraint: Primary key, payrate should be > 0.
Create a Database in 3NF & write queries for following.
• Find the names and rate of pay all employees who allocated a duty.
• Give employee number who are working at posting_no. 201, but don’t have the skills of waiter.
• Display a list of names of employees who have skill of chef and who has assigned a duty.
• Display emp_no and dates for all employees who are working on Tuesday and at least one other day.
• Display shiftwise employee details.
Find the names and rate of pay all employees who allocated a duty.
sql>select name,payrate from employee;
Give employee number who are working at posting_no. 201, but don’t have the skills of waiter.
sql>select name from employee,position,employee_position where employee.emp_no=employee_position.emp_no and position.posting_no=employee_position.posting_no and position.posting_no=1 and skillp not in ('waiter');
Display a list of names of employees who have skill of chef and who has assigned a duty.
sql> selct anme,skillp from employee,position,employee_position where employee.emp_no=employee_position.emp_no and position.posting_no=employee_position.skillp='chef';
Display emp_no and dates for all employees who are working on Tuesday and at least one other day.
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