Table schema:
CREATE TABLE table_name_99 (part_number_s_ VARCHAR, release_price___usd__ VARCHAR, release_date VARCHAR, frequency VARCHAR)

Question: what is the part number when the release date is january 2011, the frequency is 3.4 ghz and the release price (usd) is $317?
SQL: SELECT part_number_s_ FROM table_name_99 WHERE release_date = "january 2011" AND frequency = "3.4 ghz" AND release_price___usd__ = "$317"