CREATE TABLE table_name_5 (player VARCHAR2, position VARCHAR2, jersey_number_s_ VARCHAR2)

Who wears the jersey number 20 and has the position of SG?
SELECT player FROM table_name_5 WHERE position = "sg" AND jersey_number_s_ = "20"
SELECT "player" FROM "table_name_5" WHERE "20" = "jersey_number_s_" AND "position" = "sg"