I am trying to rebuild some of the old Queries in old database and I came accross with this
SELECT gl_maint_action.glfwm_key, [description] & IIf(IsNull([com_a]),""," (" & [com_a] & ")") & IIf(IsNull([com_b]),""," (" & [com_b] & ")") AS [Desc]
FROM gl_maint_action INNER JOIN gl_maint_code ON...