Table: draft_history_15
Columns: round
pick
overall
name
position
college

Question: What is the highest Pick that has a round greater than 6 and an overall greater than 216?
SQL: SELECT MAX("pick") FROM draft_history_15 WHERE "round" > 6 AND "overall" > 216

Question: What is the highest round that has an overall of 143 and a pick greater than 6?
SQL: SELECT MAX("round") FROM draft_history_15 WHERE "overall" = 143 AND "pick" > 6