1a.create Table staff
(emp_id VarChar2 (4)
Constraint emp_id_pk PRIMARY KEY,
Surname VarChar2 (40),
Name VarChar2 (40),
Address VarChar2 (50),
PCode Number (4),
BirthDate Date,
Hired Date,
Salary Number (8, 2));
INSERT INTO staff
(EMP_ID, Surname, Name, Address, Pcode, BirthDate, Hired, Salary)
VALUES
('TE01','Tan','James','Bedok', 1111, TO_DATE (‘MAY 8, 1965', 'MON, DD, YYYY’), TO_DATE (‘1/5/1991', 'dd/mm/yyyy'), 2000);
INSERT INTO staff
(EMP_ID, Surname, Name, Address, Pcode, BirthDate, Hired, Salary)
VALUES
('TE03','CHEW','SHARON','Tampines', 2222, TO_DATE (‘AUG 26, 1964', 'MON, DD, YYYY’), TO_DATE (‘1/7/1991', 'dd/mm/yyyy'), 1800);
INSERT INTO staff
(EMP_ID, Surname, Name, Address, Pcode, BirthDate, Hired, Salary)
VALUES
('AD03','CHONG','MABEL','SIMEI', 3333, TO_DATE (‘JUL 11, 1968', 'MON, DD, YYYY’), TO_DATE (‘1/7/1991', 'dd/mm/yyyy'), 1600);
INSERT INTO staff
(EMP_ID, Surname, Name, Address, Pcode, BirthDate, Hired, Salary)
VALUES
('MK03','SIM','THERESA','HOUGANG', 6666, TO_DATE (‘NOV 23, 1970', 'MON, DD, YYYY’), TO_DATE (‘1/8/1991', 'dd/mm/yyyy'), 1600);
INSERT INTO staff
(EMP_ID, Surname, Name, Address, Pcode, BirthDate, Hired, Salary)
VALUES
('AD03','HO','LINDA','THOMSON', 4444, TO_DATE (‘APR 6, 1968', 'MON, DD, YYYY’), TO_DATE (‘1/9/1991', 'dd/mm/yyyy'), 1500);
INSERT INTO staff
(EMP_ID, Surname, Name, Address, Pcode, BirthDate, Hired, Salary)
VALUES
('TE03','CHUA','ESTHER','YISHUN', 5555, TO_DATE (‘FEB 12, 1965', 'MON, DD, YYYY’), TO_DATE (‘1/10/1991', 'dd/mm/yyyy'), 2000);
INSERT INTO staff
(EMP_ID, Surname, Name, Address, Pcode, BirthDate, Hired, Salary)
VALUES
('AD03','NG','ESTHER',', ' TO_DATE (‘MAR 21, 1970', 'MON, DD, YYYY’), TO_DATE (‘1/3/1991', 'dd/mm/yyyy'), 1300);
INSERT INTO staff
(EMP_ID, Surname, Name, Address, Pcode, BirthDate, Hired, Salary)
VALUES
('MK03','LIM','SERENE','HOUGANG', 6666, TO_DATE (‘SEP 26, 1966', 'MON, DD, YYYY’), TO_DATE (‘1/5/1992', 'dd/mm/yyyy'), 1800);
2a.SELECT name, birthdate, hired
FROM staff
ORDER BY name;
2b.SELECT emp_id, surname, name
FROM staff
WHERE surname='Tan';
2c.SELECT emp_id, surname, name
FROM staff
WHERE emp_id='TE';
2d.SELECT name, address pcode, birthdate
FROM staff
WHERE name='Esther'or address='Simei';
2e.SELECT name, salary
FROM staff
WHERE salary >1800 and not=1600
ORDER BY surname;
2f.SELECT name, project, coursename, semester_2008
FROM course
WHERE project=compulsory;
2g.SELECT emp_id, name, surname as 'employee'
FROM staff;
3. UPDATE staff set salary=3000
WHERE emp_id='TE04';
I found this bear so cute at dear’s room


And he was force by me to take a picture with this bear J