SQL: avoiding hard-coding or magic numbers

Question

Question: What are some other strategies on avoiding magic numbers or hard-coded values in your SQL scripts or stored procedures?

Consider a stored

Answer 1

I recently figured out that magic numbers can be implemented by views:

CREATE VIEW V_Execution_State AS
SELECT 10 AS Pending, 20 AS Running, 30 AS Done

DECLARE @state INT
SELECT @state = Pending FROM V_Execution_State