Combine three conditions with OR : AND OR « Query Select « Oracle PL/SQL Tutorial






SQL>
SQL>
SQL>
SQL> CREATE TABLE employees (
  2    au_id    CHAR(3)     NOT NULL,
  3    au_fname VARCHAR(15) NOT NULL,
  4    au_lname VARCHAR(15) NOT NULL,
  5    phone    VARCHAR(12) NULL    ,
  6    address  VARCHAR(20) NULL    ,
  7    city     VARCHAR(15) NULL    ,
  8    state    CHAR(2)     NULL    ,
  9    zip      CHAR(5)     NULL
 10  );

Table created.

SQL>
SQL> INSERT INTO employees VALUES('A01','S','B','111-111-1111','75 St','Boston','NY','11111');

1 row created.

SQL> INSERT INTO employees VALUES('A02','W','H','222-222-2222','2922 Rd','Boston','CO','22222');

1 row created.

SQL> INSERT INTO employees VALUES('A03','H','H','333-333-3333','3800 Ave, #14F','San Francisco','CA','33333');

1 row created.

SQL> INSERT INTO employees VALUES('A04','K','H','444-444-4444','3800 Ave, #14F','San Francisco','CA','44444');

1 row created.

SQL> INSERT INTO employees VALUES('A05','C','K','555-555-5555','114 St','New York','NY','55555');

1 row created.

SQL> INSERT INTO employees VALUES('A06',' ','K','666-666-666','390 Mall','Palo Alto','CA','66666');

1 row created.

SQL> INSERT INTO employees VALUES('A07','P','O','777-777-7777','1442 St','Sarasota','FL','77777');

1 row created.

SQL>
SQL>
SQL>
SQL>
SQL> SELECT au_fname, au_lname, city, state
  2    FROM employees
  3    WHERE (state = 'NY')
  4       OR (state = 'CO')
  5       OR (city = 'San Francisco');

AU_FNAME        AU_LNAME        CITY            ST
--------------- --------------- --------------- --
S               B               Boston          NY
W               H               Boston          CO
H               H               San Francisco   CA
K               H               San Francisco   CA
C               K               New York        NY

SQL>
SQL> drop table employees;

Table dropped.

SQL>
SQL>
SQL>








2.11.AND OR
2.11.1.Use AND to link two conditions
2.11.2.Use 'OR' to link two conditions
2.11.3.Combine three conditions with OR
2.11.4.(state = 'CA') OR (state <> 'CA')
2.11.5.1=1 or 1=0 and 0=1 (case 1)
2.11.6.(1=1 or 1=0) and 0=1 (case 2)
2.11.7.1=1 or (1=0 and 0=1) (case 3)
2.11.8.CONDITION
2.11.9.Combine NOT and AND
2.11.10.Not Equal and OR
2.11.11.Replace IN operator with or operator
2.11.12.Combine conditions with AND and OR
2.11.13.Use parenthesis to change the order of AND and OR