Table: federer_stats
Columns: edition
round
date
partnering
against
surface
opponents
w_l
result

Question: What date was the result 6–2, 4–6, 6–4?
SQL: SELECT "date" FROM federer_stats WHERE "result" = '6–2, 4–6, 6–4'

Question: How many matches had the result of 6–3, 6–2?
SQL: SELECT COUNT("partnering") FROM federer_stats WHERE "result" = '6–3, 6–2'