Table schema:
CREATE TABLE table_name_23 (squad_no INTEGER, goals VARCHAR, points VARCHAR, player VARCHAR)

Question: What is the total number of squad no when there are more than 8 points, Danny Mcguire is a player, and there are more than 0 goals?
SQL: SELECT SUM(squad_no) FROM table_name_23 WHERE points > 8 AND player = "danny mcguire" AND goals > 0