1. Practice Project Practice to know SQL
Download sql script file sailors.txt
Create and populate those tables
Try the following queries:
Q1, Q12, Q21, Q26, Q31, Q32
Work on the following practice project (Part I and II) and the SQL script file with group ID to TA

2. Practice Project – Part I
Employee
int, varchar(20), float
22,'Dustin',
23,'Bob',
24, 'Dustin',
Department
101,'cs','keenedy‘
102,'ee','smith‘
Workin
int, int, date
22,101,‘ ‘
22,102, ‘ ‘
23,102,‘ ’
24,101, ‘ ‘
stime
salary
ename
eid
dname
did
daddress
workin
Employee
Department
Map ER to relation tables
Populate table
Q1 “find the name of employees who work at cs dept”
Q2 “find the name of emplyees who have not worked at dept 101” 6

3. Practice Project – Part II
Please insert more tuples
Q3 “find the average salary of employees”
Q4 “find the average salary of employees for each dept.”
Q5 ”Find the average salary of employes for each department that has at least 3 SUCH employees”
Q6 “find the average salary of employees whose salary is above 9000” for each department that has at least three SUCH employees.
Employee
3,‘Alice',8000.0
4,‘Mike',7000.0
5, ‘Alex',
6,’David’,
Department
103,‘sis',‘carc‘
Workin
3,103,‘ ‘
4,103, ‘ ‘
5,103,‘ ’
6,102, ‘ ‘