Table: astros_2008_season
Columns: date
opponent
score
loss
attendance
record

Question: Record of 12–15 happened on what date?
SQL: SELECT "date" FROM astros_2008_season WHERE "record" = '12–15'

Question: Date of april 9 had what score?
SQL: SELECT "score" FROM astros_2008_season WHERE "date" = 'april 9'

Question: Record of 11–12 involved what average attendance figures?
SQL: SELECT AVG("attendance") FROM astros_2008_season WHERE "record" = '11–12'