SQL Comparison Operators

Comparison operators: Comparison operators allow row retrieval  from table based on the condition specified in the WHERE clause.

Here is the list of all comparison operators available in SQL.
=Equal to
>Greater than
<Less than
>=Greater than or equal to 
<=Less than or equal to
<>, !=Not equal to
!>Not greater than
<!Not Less than
()Controls precedence

Example: SELECT * from publishers WHERE country = 'USA'
The above statement displays those pub_name from publishers table for which country is USA.

comparison operator in sql

Example: SELECT Type, Title_ID, Price from Titles WHERE Price * Ytd_Sales < Advance
This statement displays only those records from the Titles table in which the product of price and YtdSales attributes is less than the advance for the book.
comparison operator in sql