CREATE TABLE table_22064 ("Story No." CLOB, "Episode" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "UK viewers  ( million ) " CLOB, "AI  ( % ) " FLOAT, "Original air date" CLOB, "Production code" CLOB)

Name the story number for paul cornell
SELECT "Story No." FROM table_22064 WHERE "Written by" = 'Paul Cornell'
SELECT "Story No." FROM "table_22064" WHERE "Written by" = 'Paul Cornell'