CREATE TABLE table_36174 ("Character" CLOB, "Actor" CLOB, "Duration" CLOB, "Role" CLOB, "Appearances" CLOB)

What is the duration for mike walling as the actor?
SELECT "Duration" FROM table_36174 WHERE "Actor" = 'mike walling'
SELECT "Duration" FROM "table_36174" WHERE "Actor" = 'mike walling'