The document provides a list of 32 SQL queries to be implemented using PostgreSQL. The queries involve creating tables, inserting data, joining tables, aggregating data using functions like COUNT, MAX, MIN, and AVG, filtering on conditions, using both implicit and explicit joins, grouping data, and more. Students are instructed to paste screenshots of each query and implement at least 10 of the queries provided.

1. LIST OF QUERIES – PostreSQL
Instructions- include yourname inEmployeetable name (e.g.,employeetable mustbe havingthe
name:- EmployeeXYZif XYZisthe name of students.
Paste screenshotsof everyquery.
At least10 queriesmustbe implemented
1. Create the followingtables
2. Insert at least 5 rows in each ofthe tablescreated in the previous activity.
3. SELECT FNAME,LNAME, ADDRESS
FROM EMPLOYEE, DEPARTMENT
WHERE DNAME='Research' AND DNUMBER=DNO
4. SELECT PNUMBER, DNUM,LNAME, BDATE, ADDRESS
FROM PROJECT, DEPARTMENT, EMPLOYEE
WHERE DNUM=DNUMBER AND MGRSSN=SSN AND
PLOCATION='Stafford'
5. SELECT E.FNAME,E.LNAME, S.FNAME,S.LNAME
FROM EMPLOYEE E S
WHERE E.SUPERSSN=S.SSN

2. 6. SELECT E.FNAME,E.LNAME, S.FNAME, S.LNAME
FROM EMPLOYEE AS E, EMPLOYEE AS S
WHERE E.SUPERSSN=S.SSN
7. SELECT SSN
FROM EMPLOYEE
8. SELECT SSN, DNAME
FROM EMPLOYEE, DEPARTMENT
9. SELECT *
FROM EMPLOYEE
WHERE DNO=5
10. SELECT *
FROM EMPLOYEE, DEPARTMENT
WHERE DNAME='Research' AND
DNO=DNUMBER
11. SELECT SALARY
FROM EMPLOYEE
12. SELECT DISTINCT SALARY
FROM EMPLOYEE
13. (SELECT PNAME
FROM PROJECT, DEPARTMENT, EMPLOYEE
WHERE DNUM=DNUMBER AND MGRSSN=SSN AND LNAME='Smith')
UNION (SELECT PNAME
FROM PROJECT, WORKS_ON, EMPLOYEE
WHERE PNUMBER=PNO AND ESSN=SSN AND
LNAME='Smith')
14. SELECT FNAME,LNAME, ADDRESS
FROM EMPLOYEE
WHERE DNO IN (SELECT DNUMBER
FROM DEPARTMENT
WHERE DNAME='Research' )
15. SELECT E.FNAME,E.LNAME
FROM EMPLOYEE AS E

3. WHERE E.SSN IN (SELECT ESSN
FROM DEPENDENT
WHERE ESSN=E.SSN AND
E.FNAME=DEPENDENT_NAME)
16. SELECT E.FNAME,E.LNAME
FROM EMPLOYEE E, DEPENDENT D
WHERE E.SSN=D.ESSN AND
E.FNAME=D.DEPENDENT_NAME
17. SELECT FNAME,LNAME
FROM EMPLOYEE
WHERE ( (SELECT PNO
FROMWORKS_ON
WHERE SSN=ESSN)
CONTAINS
(SELECT PNUMBER
FROMPROJECT
WHERE DNUM=5) )
18. SELECT FNAME,LNAME
FROM EMPLOYEE
WHERE EXISTS (SELECT*
FROM DEPENDENT
WHERE SSN=ESSN AND
FNAME=DEPENDENT_NAME)
19. SELECT NAME, LNAME
FROM EMPLOYEE
WHERE NOT EXISTS (SELECT *
FROM DEPENDENT
WHERE SSN=ESSN)
20. SELECT ISTINCT ESSN
FROM WORKS_ON
WHERE PNO IN (1, 2, 3)
21. SELECT FNAME,LNAME
FROM EMPLOYEE
WHERE SUPERSSN IS NULL

4. 22. SELECT FNAME,LNAME, ADDRESS
FROM EMPLOYEE, DEPARTMENT
WHERE DNAME='Research' AND DNUMBER=DNO
23. SELECT E.FNAME,E.LNAME, S.FNAME, S.LNAME
FROM (EMPLOYEE E LEFT OUTER JOIN EMPLOYEES
ON E.SUPERSSN=S.SSN)
24. SELECT FNAME,LNAME, ADDRESS
FROM (EMPLOYEE NATURAL JOIN DEPARTMENT
AS DEPT(DNAME, DNO, MSSN, MSDATE)
WHERE DNAME='Research’
25. SELECT PNUMBER, DNUM,LNAME, BDATE, ADDRESS
FROM (PROJECT JOIN DEPARTMENT ON DNUM=DNUMBER) JOIN
EMPLOYEE ON MGRSSN=SSN) )
WHERE PLOCATION='Stafford’
26. SELECT MAX(SALARY), MIN(SALARY),AVG(SALARY)
FROM EMPLOYEE
27. SELECT MAX(SALARY),MIN(SALARY),AVG(SALARY)
FROM EMPLOYEE, DEPARTMENT
WHERE DNO=DNUMBER AND DNAME='Research'
28. SELECT COUNT (*)
FROM EMPLOYEE
29. SELECT COUNT (*)
FROM EMPLOYEE, DEPARTMENT
WHERE DNO=DNUMBER AND
DNAME='Research
30. SELECT DNO, COUNT(*), AVG (SALARY)
FROM EMPLOYEE
GROUPBY DNO
31. SELECT PNUMBER, PNAME,COUNT (*)
FROM PROJECT, WORKS_ON
WHERE PNUMBER=PNO
GROUPBY PNUMBER, PNAME

5. 32. SELECT PNUMBER, PNAME,COUNT (*)
FROM PROJECT, WORKS_ON
WHERE PNUMBER=PNO
GROUPBY PNUMBER, PNAME
HAVING COUNT (*) > 2