CREATE TABLE "table1_26448179_2" (
  "no_in_series" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text,
  "u_s_viewers_millions" text
);

Question:  He wrote production number 102? 
SQL: SELECT "written_by" FROM "table1_26448179_2" WHERE "production_code"='102';