Table: tv_episodes_30
Columns: series
season
title
directed_by
written_by
original_air_date
u_s_viewers_millions

Question: What number in the series was episode 7 in the season?
SQL: SELECT "series" FROM tv_episodes_30 WHERE "season" = 7

Question: Who wrote "Voir Dire"?
SQL: SELECT "written_by" FROM tv_episodes_30 WHERE "title" = '"Voir Dire"'

Question: When was "Rewind" originally aired?
SQL: SELECT "original_air_date" FROM tv_episodes_30 WHERE "title" = '"Rewind"'

Question: How many episodes had the title "Rise and Fall"?
SQL: SELECT COUNT("season") FROM tv_episodes_30 WHERE "title" = '"Rise and Fall"'

Question: Who wrote the episode that had 12.15 million viewers?
SQL: SELECT "written_by" FROM tv_episodes_30 WHERE "u_s_viewers_millions" = '12.15'

Question: What number in the season was the episode with 12.23 million viewers?
SQL: SELECT "season" FROM tv_episodes_30 WHERE "u_s_viewers_millions" = '12.23'