PL SQL Statements Oracle PLSQL Tutorial

SQL>
SQL> create table employee_history
  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)
 15          );
Table created.
SQL>
SQL> insert into employee_history(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(9,'OK','Joe','T','9 Ave','Kansas City','MO','65602','3658','415', '456-4563','A Inc');
1 row created.
SQL>
SQL> insert into employee_history(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(12,'Yes','Larry','T','1 Rd.','Newarkville','NJ','27377','3298','908', '123-7384','B Inc');
1 row created.
SQL>
SQL> insert into employee_history(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(13,'No','Cindy','T','13 Street','Warwick','RI','07377','3298','401', '123-7384','C Inc');
1 row created.
SQL>
SQL> insert into employee_history(empl_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)
  2  values(14,'Fine','Doris','R','11th Ave','New York','NY','22299','3222','212', '123-1234','D Inc');
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,'14-Feb-2002', 23.00, '14-Feb-2002', '12 noon', 'CA',1, null, 'Gift for wife');
1 row created.
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,'14-Feb-2003', 510.98, '14-feb-2003', '5 pm', 'NY',7, 'Rose Ted', 'Happy Valentines Day to Mother');
1 row created.
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,'14-Feb-2004', 315.99, '14-feb-2004', '3 pm', 'VS',2, 'Ani Forest', 'Happy Valentines Day to Father');
1 row created.
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,'14-Feb-1999', 191.95, '14-feb-1999', '2 pm', 'NJ',2, 'O. John', 'Happy Valentines Day');
1 row created.
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(5, 6,'4-mar-2002', 101.95, '5-mar-2002', '2:30 pm', 'MO'    , 2, 'Cora', 'Happy Birthday from John');
1 row created.
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(6, 9,'7-apr-2003', 221.95, '7-apr-2003', '3 pm', 'MA', 2, 'Sake Keith', 'Happy Birthday from Joe' );
1 row created.
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,'20-jun-2004', 315.95, '21-jun-2004', '12 noon', 'BC', 2, 'Jessica Li', 'Happy Birthday from Jessica');
1 row created.
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, '31-dec-1999', 135.95, '1-jan-2000', '12 noon', 'DI',   3, 'Larry', 'Happy New Year from Lawrence');
1 row created.
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, '26-dec-2003', 715.95, '2-jan-2004', '12 noon', 'SK',7, 'Did', 'Happy Birthday from Nancy' );
1 row created.
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, sysdate-1, 119.95, sysdate+2, '6:30 pm', 'VG',2, 'P. Jing', 'Happy Valentines Day to Jason');
1 row created.
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, sysdate, 310.00, sysdate+2, '3:30 pm', 'DC',2, 'C. Late', 'Happy Birthday Day to Jack');
1 row created.
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, sysdate-3, 121.95, sysdate-2, '1:30 pm', 'AC',2, 'W. Last', 'Happy Birthday Day to You');
1 row created.
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, sysdate, 211.95, sysdate-4, '4:30 pm', 'CA',2, 'J. Bond', 'Thanks for hard working');
1 row created.
SQL>
SQL> -- First, review row-at-a-time processing:
SQL> declare
  2      type cust_array_type is table of number
  3           index by binary_integer;
  4      employee_array  cust_array_type;
  5  begin
  6      select empl_no bulk collect
  7      into employee_array from employee_history;
  8
  9      FOR i IN employee_array.FIRST..employee_array.LAST LOOP
 10         delete from ord where empl_no = employee_array(i);
 11         dbms_output.put_line(sql%rowcount);
 12      END LOOP;
 13  end;
 14  /
2
0
PL/SQL procedure successfully completed.
SQL>
SQL> drop table employee_history;
Table dropped.
SQL>
SQL> drop table ord;
Table dropped.