SQL AND ,OR, NOT Operators

SQL AND, OR, NOT  OPERATOR:-  The WHERE clause can be combined with AND, OR, NOT Operators.
These operators are used to filter records based on more than one condition.

SQL AND OPERATOR:- The AND operator displays a record if all the conditions separated by AND are TRUE.


SYNTAX:-

SELECT column1 ,column2, ...
FROM table_name
WHERE condition1 AND condition2 AND condition3 ... ;

EXAMPLE:-
Consider the CUSTOMERS table having the following records:-


AND Example:-

The following SQL statement selects all fields from "CUSTOMERS" where Address is "Delhi" AND Age is "23":-

 SELECT CustomerID , Name ,Address , Age ,Salary 
 FROM CUSTOMERS
 WHERE Address = 'Delhi' AND Age = 23 ;

OUTPUT:-

SQL OR OPERATOR:- The SQL OR Operator is used to create a SQL statement where records are returned when any one of the conditions met.

Syntax:-

SELECT column1 ,column2, ...
FROM table_name
WHERE condition1 OR condition2 OR condition3 ... ;

EXAMPLE:-

The following SQL statement selects all fields from "CUSTOMERS" where Address is "Delhi" OR  Salary is "20000":-

 SELECT CustomerID , Name ,Address , Age ,Salary 
 FROM CUSTOMERS
 WHERE Address = 'Delhi' OR Salary  = 20000 ;

OUTPUT:-

SQL NOT OPERATOR:- The NOT operator displays a record if the condition is NOT TRUE.

Syntax:-

SELECT column1, column2, ...
FROM table_name
WHERE  NOT condition;

EXAMPLE:-
The following SQL statement selects all fields from "CUSTOMERS" where Address is NOT "Delhi ":-

SELECT CustomerID , Name ,Address , Age ,Salary 
 FROM CUSTOMERS
 WHERE  NOT Address ='Delhi' ;

OUTPUT:-



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