Table: tennis_stats_2
Columns: year
championship
surface
partner
opponents_in_final
score_in_final

Question: Who was his partner in 1989? 
SQL: SELECT "partner" FROM tennis_stats_2 WHERE "year" = 1989

Question: What was the surface when he played with John Alexander? 
SQL: SELECT "surface" FROM tennis_stats_2 WHERE "partner" = 'John Alexander'

Question: What was the final score in 1986?
SQL: SELECT "score_in_final" FROM tennis_stats_2 WHERE "year" = 1986