Table: volleyball_world_league_match_7
Columns: date
score
set_1
set_2
set_3
set_4
set_5
total

Question: What date has a set 4 of 25-19?
SQL: SELECT "date" FROM volleyball_world_league_match_7 WHERE "set_4" = '25-19'

Question: What is the total for the set 2 of 25-18?
SQL: SELECT "total" FROM volleyball_world_league_match_7 WHERE "set_2" = '25-18'

Question: What is the total for set 2 of 25-19?
SQL: SELECT "total" FROM volleyball_world_league_match_7 WHERE "set_2" = '25-19'

Question: What is set 3 when set 5 is na, set 1 is 21-25, and set 2 is 25-16?
SQL: SELECT "set_3" FROM volleyball_world_league_match_7 WHERE "set_5" = 'na' AND "set_1" = '21-25' AND "set_2" = '25-16'

Question: What is the set 1 for the date jun 26, and a set 2 of 25-16?
SQL: SELECT "set_1" FROM volleyball_world_league_match_7 WHERE "date" = 'jun 26' AND "set_2" = '25-16'

Question: What is the total for set 2 17-25?
SQL: SELECT "total" FROM volleyball_world_league_match_7 WHERE "set_2" = '17-25'