CREATE TABLE table_77670 ("Debut year" FLOAT, "Player" TEXT, "Date of birth" TEXT, "Games" FLOAT, "Goals" FLOAT, "Years at club" TEXT)

What is the years at the club of the player with 2 goals and was born on 23 July 1910?
SELECT "Years at club" FROM table_77670 WHERE "Goals" = '2' AND "Date of birth" = '23 july 1910'
SELECT "Years at club" FROM "table_77670" WHERE "Date of birth" = '23 july 1910' AND "Goals" = '2'