CREATE TABLE table_3984 ("Series #" FLOAT, "Season #" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB)

Who wrote episode with production code 1.01?
SELECT "Written by" FROM table_3984 WHERE "Production code" = '1.01'
SELECT "Written by" FROM "table_3984" WHERE "Production code" = '1.01'