How can I use optional parameters in a T-SQL stored procedure?

Question

I am creating a stored procedure to do a search through a table. I have many different search fields, all of which are optional. Is there a way to create a stored procedur

Answer 1

Extend your WHERE condition:

WHERE
    (FirstName = ISNULL(@FirstName, FirstName)
    OR COALESCE(@FirstName, FirstName, '') = '')
AND (LastName = ISNULL(@LastName, LastName)
    OR COALESCE(@LastName, LastName, '') = '')
AND (Title = ISNULL(@Title, Title)
    OR COALESCE(@Title, Title, '') = '')

i. e. combine different cases with boolean conditions.