Table: t_1988_houston_oilers_football
Columns: week
date
opponent
result
attendance

Question: What is Opponent, when Date is December 18, 1988?
SQL: SELECT "opponent" FROM t_1988_houston_oilers_football WHERE "date" = 'december 18, 1988'

Question: What is Attendance, when Opponent is Pittsburgh Steelers?
SQL: SELECT "attendance" FROM t_1988_houston_oilers_football WHERE "opponent" = 'pittsburgh steelers'

Question: What is the average Week, when Result is l 37–34?
SQL: SELECT AVG("week") FROM t_1988_houston_oilers_football WHERE "result" = 'l 37–34'