Table: eugenics_board_sterilizations
Columns: date_of_sterilization
age_10_19
age_20_29
age_30_39
age_40_49
age_50_59
age_unknown
total

Question: Name the least age 30-39 where age 20-29 is 593
SQL: SELECT MIN("age_30_39") FROM eugenics_board_sterilizations WHERE "age_20_29" = 593

Question: Name the least age 40-49
SQL: SELECT MIN("age_40_49") FROM eugenics_board_sterilizations

Question: Name the age 30-39 and age 10-19 380
SQL: SELECT "age_30_39" FROM eugenics_board_sterilizations WHERE "age_10_19" = 380