SQLite - Comparison Operators

Consider COMPANY table with the following records.

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
1           Paul        32          California  20000.0
2           Allen       25          Texas       15000.0
3           Teddy       23          Norway      20000.0
4           Mark        25          Rich-Mond   65000.0
5           David       27          Texas       85000.0
6           Kim         22          South-Hall  45000.0
7           James       24          Houston     10000.0

The following examples will show the usage of various SQLite Comparison Operators.

Here, we have used WHERE clause, which will be explained in a separate chapter but for now you can understand that WHERE clause is used to put a conditional statement alongwith SELECT statement.

Example - List Employees having Salary greater than 50,000.

Following SELECT statement lists down all the records having SALARY greater than 50,000.00.

sqlite> SELECT * FROM COMPANY WHERE SALARY > 50000;

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
4           Mark        25          Rich-Mond   65000.0
5           David       27          Texas       85000.0

Example - List Employees having Salary as 20,000.

Following SELECT statement lists down all the records having SALARY equal to 20,000.00.

sqlite>  SELECT * FROM COMPANY WHERE SALARY = 20000;

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
1           Paul        32          California  20000.0
3           Teddy       23          Norway      20000.0

Example - List Employees having Salary not as 20,000.

Following SELECT statement lists down all the records having SALARY not equal to 20,000.00.

sqlite>  SELECT * FROM COMPANY WHERE SALARY != 20000;

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
2           Allen       25          Texas       15000.0
4           Mark        25          Rich-Mond   65000.0
5           David       27          Texas       85000.0
6           Kim         22          South-Hall  45000.0
7           James       24          Houston     10000.0

Example - List Employees having Salary greater than or equal to 65,000.00.

Following SELECT statement lists down all the records having SALARY greater than or equal to 65,000.00.

sqlite> SELECT * FROM COMPANY WHERE SALARY >= 65000;

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
4           Mark        25          Rich-Mond   65000.0
5           David       27          Texas       85000.0