human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Name, Date of Birth, Height, Weight, Spike, Block
###Question: How many spikes have 28.09.1981 as the date of birth, with a block greater than 318?
gpt
SELECT SUM Spike FROM table WHERE Date of Birth = 28.09.1981 AND Block > 318