Question: what's the years played with singles w-l of 3–2
SQL: SELECT "Years Played" FROM "1-10023387-1" WHERE "Singles W-L" = '3–2';

Question: what's the doubles w-l for player Seol Jae-Min (none)
SQL: SELECT "Doubles W-L" FROM "1-10023387-1" WHERE "Player" = 'Seol Jae-Min (none)';

Question: what's the singles w-l for Kim Doo-Hwan
SQL: SELECT "Singles W-L" FROM "1-10023387-1" WHERE "Player" = 'Kim Doo-Hwan';

Question: what's the total number of singles w-l with doubles w-l of 0–0 and total w-l of 3–1
SQL: SELECT COUNT("Singles W-L") FROM "1-10023387-1" WHERE "Doubles W-L" = '0–0' AND "Total W-L" = '3–1';

Question: what's the doubles w-l with years played value of 1 (1968)
SQL: SELECT "Doubles W-L" FROM "1-10023387-1" WHERE "Years Played" = '1 (1968)';

Question: what years are played for player  Im Chung-Yang
SQL: SELECT "Years Played" FROM "1-10023387-1" WHERE "Player" = 'Im Chung-Yang';