Table: alex_corretja_tennis_match
Columns: outcome
date
championship
surface
opponent_in_the_final
score_in_the_final

Question: What type of surface did they play on 23 October 2000?
SQL: SELECT "surface" FROM alex_corretja_tennis_match WHERE "date" = '23 october 2000'

Question: What type of surface did they play on 21 July 1997
SQL: SELECT "surface" FROM alex_corretja_tennis_match WHERE "date" = '21 july 1997'

Question: what was the score of the Championship match played in Estoril, Portugal?
SQL: SELECT "score_in_the_final" FROM alex_corretja_tennis_match WHERE "championship" = 'estoril, portugal'

Question: What was the name of the opponent Tommy Haas played in the Championship?
SQL: SELECT "championship" FROM alex_corretja_tennis_match WHERE "opponent_in_the_final" = 'tommy haas'

Question: What was the score of the match played on 18 January 1999?
SQL: SELECT "outcome" FROM alex_corretja_tennis_match WHERE "date" = '18 january 1999'