SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
2 ID VARCHAR2(4 BYTE) NOT NULL primary key,
3 First_Name VARCHAR2(10 BYTE),
4 Last_Name VARCHAR2(10 BYTE),
5 Start_Date DATE,
6 End_Date DATE,
7 Salary Number(8,2),
8 City VARCHAR2(10 BYTE),
9 Description VARCHAR2(15 BYTE)
10 )
11 /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values ('01','Jason', 'Martin', to_date('19960725','YYYYMMDD'), to_date('20060725','YYYYMMDD'), 12, 'Toronto', 'Programmer')
3 /
1 row created.
SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values('02','Alison', 'Mathews', to_date('19760321','YYYYMMDD'), to_date('19860221','YYYYMMDD'), 66, 'Vancouver','Tester')
3 /
1 row created.
SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values('03','James', 'Smith', to_date('19781212','YYYYMMDD'), to_date('19900315','YYYYMMDD'), 25, 'Vancouver','Tester')
3 /
1 row created.
SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values('04','Celia', 'Rice', to_date('19821024','YYYYMMDD'), to_date('19990421','YYYYMMDD'), 37, 'Vancouver','Manager')
3 /
1 row created.
SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values('05','Robert', 'Black', to_date('19840115','YYYYMMDD'), to_date('19980808','YYYYMMDD'), 23, 'Vancouver','Tester')
3 /
1 row created.
SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values('06','Linda', 'Green', to_date('19870730','YYYYMMDD'), to_date('19960104','YYYYMMDD'), 43,'New York', 'Tester')
3 /
1 row created.
SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values('07','David', 'Larry', to_date('19901231','YYYYMMDD'), to_date('19980212','YYYYMMDD'), 78,'New York', 'Manager')
3 /
1 row created.
SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values('08','James', 'Cat', to_date('19960917','YYYYMMDD'), to_date('20020415','YYYYMMDD'), 12,'Vancouver', 'Tester')
3 /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
2 /
ID FIRST_NAME LAST_NAME START_DAT END_DATE SALARY CITY DESCRIPTION
---- -------------------- -------------------- --------- --------- ---------- ---------- ---------------
01 Jason Martin 25-JUL-96 25-JUL-06 12 Toronto Programmer
02 Alison Mathews 21-MAR-76 21-FEB-86 66 Vancouver Tester
03 James Smith 12-DEC-78 15-MAR-90 25 Vancouver Tester
04 Celia Rice 24-OCT-82 21-APR-99 37 Vancouver Manager
05 Robert Black 15-JAN-84 08-AUG-98 23 Vancouver Tester
06 Linda Green 30-JUL-87 04-JAN-96 43 New York Tester
07 David Larry 31-DEC-90 12-FEB-98 78 New York Manager
08 James Cat 17-SEP-96 15-APR-02 12 Vancouver Tester
8 rows selected.
SQL>
SQL>
SQL> DECLARE
2 v_salary EMPLOYEE.salary%TYPE;
3 v_id EMPLOYEE.id%TYPE := '07';
4 BEGIN
5 SELECT salary
6 INTO v_salary
7 FROM EMPLOYEE
8 WHERE id = v_id;
9
10 DBMS_OUTPUT.PUT_LINE('Starting salary: '||v_salary);
11
12 IF v_salary < 40
13 THEN
14 DBMS_OUTPUT.PUT_LINE('less than 40');
15 ELSIF v_salary BETWEEN 40 AND 50
16 THEN
17 v_salary := v_salary - (v_salary * .10);
18
19 UPDATE EMPLOYEE
20 SET salary = v_salary
21 WHERE id = v_id;
22 ELSIF v_salary > 50
23 THEN
24 v_salary := v_salary - (v_salary * .10);
25
26 UPDATE EMPLOYEE
27 SET salary = v_salary
28 WHERE id = v_id;
29 END IF;
30
31 DBMS_OUTPUT.PUT_LINE('Ending salary: '||v_salary);
32
33 ROLLBACK;
34 EXCEPTION
35 WHEN OTHERS
36 THEN
37 DBMS_OUTPUT.PUT_LINE(SQLERRM);
38 ROLLBACK;
39 END;
40 /
Starting salary: 78
Ending salary: 70.2
PL/SQL procedure successfully completed.
SQL>
SQL>
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
2 /
Table dropped.