Not equals: not vs <> : Comparison Operators « Select Query « Oracle PL / SQL

Oracle PL / SQL
1. Aggregate Functions
2. Analytical Functions
3. Char Functions
4. Constraints
5. Conversion Functions
6. Cursor
7. Data Type
8. Date Timezone
9. Hierarchical Query
10. Index
11. Insert Delete Update
12. Large Objects
13. Numeric Math Functions
14. Object Oriented Database
15. PL SQL
16. Regular Expressions
17. Report Column Page
18. Result Set
19. Select Query
20. Sequence
21. SQL Plus
22. Stored Procedure Function
23. Subquery
24. System Packages
25. System Tables Views
26. Table
27. Table Joins
28. Trigger
29. User Previliege
30. View
31. XML
Java
Java Tutorial
Java Source Code / Java Documentation
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Oracle PL / SQL » Select Query » Comparison Operators 
Not equals: not vs <>
  
SQL>
SQL>
SQL> CREATE TABLE emp (
  2    emp_id               NUMBER,
  3    ename             VARCHAR2(40),
  4    hire_date        DATE DEFAULT sysdate,
  5    end_date DATE,
  6    rate     NUMBER(5,2),
  7    CONSTRAINT emp_pk    PRIMARY KEY (emp_id)
  8  );

Table created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (101'Mary', to_date('15-Nov-1961','dd-mon-yyyy'),null,169);

row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (102'Tom', to_date('16-Sep-1964','dd-mon-yyyy'),to_date('5-May-2004','dd-mon-yyyy'),135);

row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (104'Peter', to_date('29-Dec-1987','dd-mon-yyyy'),to_date('1-Apr-2004','dd-mon-yyyy'),99);

row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (105'Mike', to_date('15-Jun-2004','dd-mon-yyyy'),null,121);

row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (107'Less', to_date('2-Jan-2004','dd-mon-yyyy'),null,45);

row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (108'Park', to_date('1-Mar-1994','dd-mon-yyyy'),to_date('15-Nov-2004','dd-mon-yyyy'),220);

row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (110'Ink', to_date('4-Apr-2004','dd-mon-yyyy'),to_date('30-Sep-2004','dd-mon-yyyy'),84);

row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (111'Tike', to_date('23-Aug-1976','dd-mon-yyyy'),null,100);

row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (112'Inn', to_date('15-Nov-1961','dd-mon-yyyy'),to_date('4-Apr-2004','dd-mon-yyyy'),70);

row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (113'Kate', to_date('3-Mar-2004','dd-mon-yyyy'),to_date('31-Oct-2004','dd-mon-yyyy'),300);

row created.

SQL>
SQL>
SQL> SET ECHO ON
SQL> SELECT *
  2  FROM emp
  3  WHERE emp_id <> 114;
       101 Mary
15-NOV-61            $169.00

       102 Tom
16-SEP-64 05-MAY-04  $135.00

       104 Peter
29-DEC-87 01-APR-04   $99.00

       105 Mike
15-JUN-04            $121.00

       107 Less
02-JAN-04             $45.00

       108 Park
01-MAR-94 15-NOV-04  $220.00

       110 Ink
04-APR-04 30-SEP-04   $84.00

       111 Tike
23-AUG-76            $100.00

       112 Inn
15-NOV-61 04-APR-04   $70.00

       113 Kate
03-MAR-04 31-OCT-04  $300.00


10 rows selected.

SQL>
SQL> SELECT *
  2  FROM emp
  3  WHERE NOT emp_id = 114;
       101 Mary
15-NOV-61            $169.00

       102 Tom
16-SEP-64 05-MAY-04  $135.00

       104 Peter
29-DEC-87 01-APR-04   $99.00

       105 Mike
15-JUN-04            $121.00

       107 Less
02-JAN-04             $45.00

       108 Park
01-MAR-94 15-NOV-04  $220.00

       110 Ink
04-APR-04 30-SEP-04   $84.00

       111 Tike
23-AUG-76            $100.00

       112 Inn
15-NOV-61 04-APR-04   $70.00

       113 Kate
03-MAR-04 31-OCT-04  $300.00


10 rows selected.

SQL>
SQL>
SQL>
SQL> drop table emp;

Table dropped.

   
    
  
Related examples in the same category
1. > vs <=
2. Using comparison operators with expressions
3. Larger and equals
4. Less and equals
5. Performing Range Tests with comparison operators
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.