T-SQL - Equal to (=) Operator

The T-SQL (Transact-SQL) = (equal to) operator checks if the value of left operand is equal to the value of right operand and returns true if the condition is true, false otherwise.

Note: The = operator is also used to assign value (for example assigning values with UPDATE statement).

Syntax

The syntax for using equal to operator in T-SQL (Transact-SQL) is given below:

expression = expression

Parameters

expression Any valid expression. Both expressions must have implicitly convertible data types.

Example:

Consider a database table called Employee with the following records:

EmpID	Name	City	Age	Salary
1	John	London	25	3000
2	Marry	New York	24	2750
3	Jo	Paris	27	2800
4	Kim	Amsterdam	30	3100
5	Ramesh	New Delhi	28	3000
6	Huang	Beijing	28	2800

To select records of table where Age of the person is equal to 28, the query is given below.

SELECT * FROM Employee
WHERE Age = 28;

The query will produce following result:

EmpID	Name	City	Age	Salary
5	Ramesh	New Delhi	28	3000
6	Huang	Beijing	28	2800

❮ T-SQL Operators