CREATE TABLE table_75143 ("Player" TEXT, "Position" TEXT, "Date of Birth  ( Age ) " TEXT, "Caps" FLOAT, "Club/province" TEXT)

Paddy Wallace who plays the position of fly-half has how many Caps?
SELECT "Caps" FROM table_75143 WHERE "Position" = 'fly-half' AND "Player" = 'paddy wallace'
SELECT "Caps" FROM "table_75143" WHERE "Player" = 'paddy wallace' AND "Position" = 'fly-half'