Table: volleyball_players_4
Columns: shirt_no
nationality
player
birth_date
height
position

Question: Name the birth date for taavi sadam
SQL: SELECT "birth_date" FROM volleyball_players_4 WHERE "player" = 'Taavi Sadam'

Question: Name the height for asko esna
SQL: SELECT "height" FROM volleyball_players_4 WHERE "player" = 'Asko Esna'

Question: Name the birth date for estonia for spiker and height of 189
SQL: SELECT "birth_date" FROM volleyball_players_4 WHERE "nationality" = 'Estonia' AND "position" = 'Spiker' AND "height" = 189

Question: Name the player for 199 height
SQL: SELECT "player" FROM volleyball_players_4 WHERE "height" = 199