Table Joins Oracle PLSQL

SQL>
SQL> create table ord(
  2           order_no               integer          primary key
  3          ,cust_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>
SQL> insert into ord(order_no,cust_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  ,cust_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  ,cust_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  ,cust_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  ,cust_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  ,cust_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  ,cust_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  ,cust_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  ,cust_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  ,cust_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  ,cust_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  ,cust_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  ,cust_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>
SQL> create table department(
  2          dept_no                 integer      primary key
  3         ,dept_name               varchar(20)      not null
  4         ,mgr_no                  integer
  5  );
Table created.
SQL>
SQL> insert into department(dept_no, dept_name, mgr_no)values(1, 'Design', 1);
1 row created.
SQL> insert into department(dept_no, dept_name, mgr_no)values(2, 'Sales', 1);
1 row created.
SQL> insert into department(dept_no, dept_name, mgr_no)values(3, 'Development', 1);
1 row created.
SQL>
SQL> create table employee(
  2           emp_no                 integer         primary key
  3          ,lastname               varchar2(20)    not null
  4          ,firstname              varchar2(15)    not null
  5          ,midinit                varchar2(1)
  6          ,street                 varchar2(30)
  7          ,city                   varchar2(20)
  8          ,state                  varchar2(2)
  9          ,zip                    varchar2(5)
 10          ,zip_4                  varchar2(4)
 11          ,area_code              varchar2(3)
 12          ,phone                  varchar2(8)
 13          ,salary                 number(3)
 14          ,birthdate              date
 15          ,hiredate               date
 16          ,title                  varchar2(20)
 17          ,dept_no                integer
 18          ,mgr                    integer
 19          ,region                 number
 20          ,division               number
 21          ,total_sales            number
 22  );
Table created.
SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
  2               values (1,'Anderson','Nancy','N','33 Ave','London','NY','11111','1111','212','234-1111',3.75,'21-mar-1927','1-feb-1947','Sales Manager',2,null,100,10,40000);
1 row created.
SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
  2               values (2,'Last','First','F','12 Ave','Paris','CA','22222','2222','111','867-2222',7.75,'14-feb-1976','15-mar-1985','Sales Clerk',2,1,100,10,10000);
1 row created.
SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
  2               values (3,'Wash','Georgia','G','1 Street14','Barton','NJ','33333','3333','214','340-3333',11.50,'2-jul-1977','21-apr-2004','Designer',1,2,100,10,40000);
1 row created.
SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
  2               values (4,'Bush','Dave','D','56 Street','Island','RI','44444','4444','215','777-4444',21.65,'15-may-1945','2-aug-1975','Designer',1,2,100,10,40000);
1 row created.
SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
  2               values (5,'Will','Robin','W','56 Street','Island','MA','55555','5555','216','777-5555',24.65,'10-dec-1980','2-aug-2007','Designer',1,5,100,10,40000);
1 row created.
SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
  2               values (6,'Pete','Mona','M','13 Ave','York','MO','66666','6666','217','111-6666',9,'14-feb-1966','15-mar-1985','Sales Clerk',2,5,100,10,40000);
1 row created.
SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
  2               values (7,'Roke','John','J','67 Ave','New York','BC','77777','7777','218','122-7777',10.00,'14-jun-1955','15-mar-1975','Accountant',3,2,100,10,40000);
1 row created.
SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
  2               values (8,'Horry','Tedi','T','1236 Lane','Newton','NY','88888','8888','219','222-8888',13.00,'10-jun-1955','15-aug-1985','Sales Representative',3,2,100,10,50000);
1 row created.
SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
  2                values (9,'Bar','Candi','C','400 East Street','Yorken','NY','99999','9999','220','321-9999',12.00,'10-oct-1933','15-jan-1969','Sales Representative',3,5,100,10,35000);
1 row created.
SQL>
SQL>
SQL> select * from ord;
  ORDER_NO    CUST_NO ORDER_DATE           TOTAL_ORDER_PRICE
---------- ---------- -------------------- -----------------
DELIVER_DATE         DELIVER PA     EMP_NO
-------------------- ------- -- ----------
DELIVER_NAME
-----------------------------------
GIFT_MESSAGE
------------------------------------------------------------------------
         1          1 14-FEB-2002 00:00:00                23
14-FEB-2002 00:00:00 12 noon CA          1
Gift for wife
         2          1 14-FEB-2003 00:00:00            510.98
14-FEB-2003 00:00:00 5 pm    NY          7
Rose Ted
Happy Valentines Day to Mother
         3          2 14-FEB-2004 00:00:00            315.99
14-FEB-2004 00:00:00 3 pm    VS          2
Ani Forest
Happy Valentines Day to Father
         4          2 14-FEB-1999 00:00:00            191.95
14-FEB-1999 00:00:00 2 pm    NJ          2
O. John
Happy Valentines Day
         5          6 04-MAR-2002 00:00:00            101.95
05-MAR-2002 00:00:00 2:30 pm MO          2
Cora
Happy Birthday from John
         6          9 07-APR-2003 00:00:00            221.95
07-APR-2003 00:00:00 3 pm    MA          2
Sake Keith
Happy Birthday from Joe
         7          9 20-JUN-2004 00:00:00            315.95
21-JUN-2004 00:00:00 12 noon BC          2
Jessica Li
Happy Birthday from Jessica
         8         12 31-DEC-1999 00:00:00            135.95
01-JAN-2000 00:00:00 12 noon DI          3
Larry
Happy New Year from Lawrence
         9         12 26-DEC-2003 00:00:00            715.95
02-JAN-2004 00:00:00 12 noon SK          7
Did
Happy Birthday from Nancy
        10          4 15-JUN-2008 17:39:51            119.95
18-JUN-2008 17:39:51 6:30 pm VG          2
P. Jing
Happy Valentines Day to Jason
        11          2 16-JUN-2008 17:39:51               310
18-JUN-2008 17:39:51 3:30 pm DC          2
C. Late
Happy Birthday Day to Jack
        12          7 13-JUN-2008 17:39:52            121.95
14-JUN-2008 17:39:52 1:30 pm AC          2
W. Last
Happy Birthday Day to You
        13          7 16-JUN-2008 17:39:53            211.95
12-JUN-2008 17:39:53 4:30 pm CA          2
J. Bond
Thanks for hard working
13 rows selected.
SQL> select * from employee;
    EMP_NO LASTNAME             FIRSTNAME       M
---------- -------------------- --------------- -
STREET                         CITY                 ST ZIP   ZIP_ ARE
------------------------------ -------------------- -- ----- ---- ---
PHONE        SALARY BIRTHDATE            HIREDATE
-------- ---------- -------------------- --------------------
TITLE                   DEPT_NO        MGR     REGION   DIVISION
-------------------- ---------- ---------- ---------- ----------
TOTAL_SALES
-----------
         1 Anderson             Nancy           N
33 Ave                         London               NY 11111 1111 212
234-1111          4 21-MAR-1927 00:00:00 01-FEB-1947 00:00:00
Sales Manager                 2                   100         10
      40000
         2 Last                 First           F
12 Ave                         Paris                CA 22222 2222 111
867-2222          8 14-FEB-1976 00:00:00 15-MAR-1985 00:00:00
Sales Clerk                   2          1        100         10
      10000
         3 Wash                 Georgia         G
1 Street14                     Barton               NJ 33333 3333 214
340-3333         12 02-JUL-1977 00:00:00 21-APR-2004 00:00:00
Designer                      1          2        100         10
      40000
         4 Bush                 Dave            D
56 Street                      Island               RI 44444 4444 215
777-4444         22 15-MAY-1945 00:00:00 02-AUG-1975 00:00:00
Designer                      1          2        100         10
      40000
         5 Will                 Robin           W
56 Street                      Island               MA 55555 5555 216
777-5555         25 10-DEC-1980 00:00:00 02-AUG-2007 00:00:00
Designer                      1          5        100         10
      40000
         6 Pete                 Mona            M
13 Ave                         York                 MO 66666 6666 217
111-6666          9 14-FEB-1966 00:00:00 15-MAR-1985 00:00:00
Sales Clerk                   2          5        100         10
      40000
         7 Roke                 John            J
67 Ave                         New York             BC 77777 7777 218
122-7777         10 14-JUN-1955 00:00:00 15-MAR-1975 00:00:00
Accountant                    3          2        100         10
      40000
         8 Horry                Tedi            T
1236 Lane                      Newton               NY 88888 8888 219
222-8888         13 10-JUN-1955 00:00:00 15-AUG-1985 00:00:00
Sales Representative          3          2        100         10
      50000
         9 Bar                  Candi           C
400 East Street                Yorken               NY 99999 9999 220
321-9999         12 10-OCT-1933 00:00:00 15-JAN-1969 00:00:00
Sales Representative          3          5        100         10
      35000
9 rows selected.
SQL> select * from department;
   DEPT_NO DEPT_NAME                MGR_NO
---------- -------------------- ----------
         1 Design                        1
         2 Sales                         1
         3 Development                   1
3 rows selected.
SQL>
SQL> select d.dept_name,
  2         e.lastname AS sales_name,
  3         o.order_date,
  4         count(*)
  5  from department d, employee e, ord o
  6  where
  7      d.dept_no = e.dept_no
  8  and e.emp_no = o.emp_no
  9  group by d.dept_name, e.lastname, o.order_date
 10  /
DEPT_NAME            SALES_NAME           ORDER_DATE
-------------------- -------------------- --------------------
  COUNT(*)
----------
Sales                Last                 14-FEB-1999 00:00:00
         1
Sales                Last                 04-MAR-2002 00:00:00
         1
Sales                Last                 07-APR-2003 00:00:00
         1
Sales                Last                 20-JUN-2004 00:00:00
         1
Sales                Last                 13-JUN-2008 17:39:52
         1
Development          Roke                 14-FEB-2003 00:00:00
         1
Sales                Last                 14-FEB-2004 00:00:00
         1
Sales                Last                 15-JUN-2008 17:39:51
         1
Design               Wash                 31-DEC-1999 00:00:00
         1
Development          Roke                 26-DEC-2003 00:00:00
         1
Sales                Last                 16-JUN-2008 17:39:53
         1
Sales                Anderson             14-FEB-2002 00:00:00
         1
Sales                Last                 16-JUN-2008 17:39:51
         1
13 rows selected.
SQL>
SQL>
SQL> drop table ord;
Table dropped.
SQL> drop table employee;
Table dropped.
SQL> drop table department;
Table dropped.
SQL>
SQL> --