Cursor Oracle PLSQL Tutorial

SQL>
SQL> create table employee
  2          (
  3           empl_no                integer         primary key
  4          ,lastname               varchar2(20)    not null
  5          ,firstname              varchar2(15)    not null
  6          ,midinit                varchar2(1)
  7          ,street                 varchar2(30)
  8          ,city                   varchar2(20)
  9          ,state                  varchar2(2)
 10          ,zip                    varchar2(5)
 11          ,zip_4                  varchar2(4)
 12          ,area_code              varchar2(3)
 13          ,phone                  varchar2(8)
 14          ,company_name           varchar2(50));
Table created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(1,'Jones','Joe','J','10 Ave','New York','NY','11111','1111','111', '111-1111','A Company');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(2,'Smith','Sue','J','20 Ave','New York','NY','22222','2222','222', '222-111','B Company');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(3,'Anderson','Peggy','J','500 St','New York','NY','33333','3333','333', '333-3333','C Company');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(4,'Andy','Jill', null,'930 St','New York','NY','44444','4444','212', '634-7733','D Company');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(5,'OK','Carl','L','19 Drive','New York','NY','55555','3234','212', '243-4243','E Company');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(6,'Peter','Jee','Q','38 Ave','New York','NY','66666','4598','212', '454-5443','F Inc');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(7,'Baker','Paul','V','738 St.','Queens','NY','77777','3842','718', '664-4333','G Inc');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(8,'Young','Steve','J','388 Ave','New York','NY','88888','3468','212', '456-4566','H Associates Inc');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(9,'Mona','Joe','T','9300 Ave','Kansas City','MO','99999','3658','415', '456-4563','J Inc');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(10,'Hackett','Karen','S','Kings Rd. Apt 833','Bellmore','NY','61202','3898','516', '767-5677','AA Inc');
1 row created.
SQL>
SQL> insert into employee(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(11,'Bob','Jack','S','12 Giant Rd.','Newark','NJ','27377','3298','908', '123-7367','Z Associates');
1 row created.
SQL>
SQL> create table ord(
  2           order_no               integer         primary key
  3          ,empl_no                integer
  4          ,order_date             date not null
  5          ,total_order_price      number(7,2)
  6          ,deliver_date           date
  7          ,deliver_time           varchar2(7)
  8          ,payment_method         varchar2(2)
  9          ,emp_no                 number(3,0)
 10          ,deliver_name           varchar2(35)
 11          ,gift_message           varchar2(100)
 12           );
Table created.
SQL>
SQL> insert into ord(order_no,empl_no,order_date,total_order_price,deliver_date,deliver_time,payment_method,emp_no,deliver_name,gift_message)
  2  values(1,1,add_months(sysdate, -1), 235.00, '14-Feb-1999', '12 noon', 'CA',1, null, 'Gift for wife');
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time ,payment_method ,emp_no,deliver_name ,gift_message )
  2  values(2,1,add_months(sysdate, -2), 50.98, '14-feb-1999', '1 pm', 'CA',7, 'Rose', 'Happy Valentines Day to Mother');
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
  2  values(3, 2,add_months(sysdate, -3), 35.99, '14-feb-1999', '1 pm', 'VS',2, 'Ruby', 'Happy Valentines Day to Mother');
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
  2  values(4, 2,add_months(sysdate, -4), 19.95, '14-feb-1999', '5 pm', 'CA',2, 'Coy', 'Happy Valentines Day to You');
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
  2  values(7, 9,add_months(sysdate, -7), 35.95, '21-jun-1999', '12 noon', 'VS', 2, 'Fill', 'Happy Birthday from Joe');
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
  2  values (8, 12, add_months(sysdate, -8), 35.95, '1-jan-2000', '12 noon', 'DI',3, 'Laura', 'Happy New Year''s from Lawrence');
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
  2  values (9, 12, add_months(sysdate, -9), 75.95, '2-jan-2000', '12 noon', 'CA',7, 'Sara', 'Happy Birthday from Lawrence' );
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
  2  values(10, 4, add_months(sysdate, -10), 19.95, sysdate, '2:30 pm', 'VG',2, 'OK', 'Happy Valentines Day to You');
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
  2  values(11, 2, add_months(sysdate, -11), 30.00, sysdate+2, '1:30 pm', 'VG',2, 'Hi', 'Happy Birthday Day to You');
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)
  2  values(12, 7, add_months(sysdate, -12), 21.95, sysdate-2, '3:30 pm', 'CA',2, 'Jack', 'Happy Birthday Day to You');
1 row created.
SQL>
SQL> insert into ord(order_no  ,empl_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)
  2  values(13, 7, add_months(sysdate, -1), 21.95, sysdate, '3:30 pm', 'CA',2, 'Jay', 'Thanks for giving 100%!');
1 row created.
SQL>
SQL> alter table employee add(discount number);
Table altered.
SQL>
SQL> create or replace procedure employee_discount1 as
  2    cursor cust_cur is
  3                 select empl_no, sum(total_order_price) as sales
  4                 from ord group by empl_no;
  5    cust_rec cust_cur%rowtype;
  6    v_discount  employee.discount%type;
  7    myStart  number := dbms_utility.get_time;
  8  begin
  9   open cust_cur;
 10   loop
 11     fetch cust_cur into cust_rec;
 12     if cust_cur%notfound then exit; end if;
 13     case
 14      when cust_rec.sales <= 10 then
 15           v_discount := .00;
 16
 17      when cust_rec.sales <= 20 then
 18           v_discount := .10;
 19
 20      when cust_rec.sales <= 50 then
 21           v_discount := .15;
 22
 23      else v_discount := .20;
 24     end case;
 25     update employee
 26       set discount = v_discount
 27       where empl_no = cust_rec.empl_no;
 28   end loop;
 29   close cust_cur;
 30   commit;
 31   dbms_output.put_line(
 32        round( (dbms_utility.get_time - myStart) / 100
 33                ,2) || ' seconds');
 34  end;
 35  /
Procedure created.
SQL> show errors
No errors.
SQL>
SQL> exec employee_discount1
PL/SQL procedure successfully completed.
SQL>
SQL> drop table ord;
Table dropped.
SQL> drop table employee;
Table dropped.
SQL>