24)Consider the following Entities and Relationships [30 Marks]
Employee (emp_id, emp_name, address)
Investment (inv_no, inv_name, inv_date, inv_amount)
Relation between Employee and Investment is One to Many.
Constraint: Primary key, inv_amount should be > 0.
Create a Database in 3NF & write queries for following.
• Display employee details who have invested more than 100000.
• Display employee wise total investment amount.
• Display the employee names who invest on date 2nd Jan 2013.
• Display employee whose investment are more than 3.
• Find average investment of employees of Pune.
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Display employee details who have invested more than 100000.
sql>select ename,address from emps,investment where emps.eid=investment.eid and amount>100000;
Display employee wise total investment amount.
sql>select ename,sum(amount) from emps,investment where emps.eid=investment.eid group by ename order by ename;
Display the employee names who invest on date 2nd Jan 2013.
sql>select ename from emps,investment where emps.eid=investment.eid and idate='2/1/2013';
Display employee whose investment are more than 3.
sql>select ename from emps,investment where emps.eid=investment.eid group by ename haveing count(investment.ino)>3;
Find average investment of employees of Pune.
sql>select avg(amount)from emps,investment where emps.eid=investment.eid and address='pune';
/
sql>select ename,address from emps,investment where emps.eid=investment.eid and amount>100000;
Display employee wise total investment amount.
sql>select ename,sum(amount) from emps,investment where emps.eid=investment.eid group by ename order by ename;
Display the employee names who invest on date 2nd Jan 2013.
sql>select ename from emps,investment where emps.eid=investment.eid and idate='2/1/2013';
Display employee whose investment are more than 3.
sql>select ename from emps,investment where emps.eid=investment.eid group by ename haveing count(investment.ino)>3;
Find average investment of employees of Pune.
sql>select avg(amount)from emps,investment where emps.eid=investment.eid and address='pune';
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