Table: tv_episode_2
Columns: no
col
title
directed_by
written_by
patient_portrayer
original_air_date
production_code

Question: Who directed the episode with production code 177605?
SQL: SELECT "directed_by" FROM tv_episode_2 WHERE "production_code" = 177605

Question: How many episodes are numbered 4 in the season?
SQL: SELECT COUNT("patient_portrayer") FROM tv_episode_2 WHERE "col" = 4

Question: What numbered episode is titled "naomi gaines"?
SQL: SELECT "no" FROM tv_episode_2 WHERE "title" = '"Naomi Gaines"'

Question: Who wrote episode number 28?
SQL: SELECT "written_by" FROM tv_episode_2 WHERE "no" = 28

Question: What is the highest numbered episode with patient portrayer doug savant?
SQL: SELECT MAX("col") FROM tv_episode_2 WHERE "patient_portrayer" = 'Doug Savant'