ISNULL metodu

Giriş

Açıklaması şöyle

Syntax : ISNULL(expression, value)

The ISNULL() function returns a specified value if the expression is NULL. If the expression is NOT NULL, this function returns the expression.

Örnek

Şöyle yaparız

SELECT ISNULL('Hello world', 'Bye'); //Hello world
SELECT ISNULL(NULL, 500); //500