Table: draft_history_7
Columns: round
pick
overall
name
position
college

Question: What is the least round number for Jon Olinger, who was picked before pick # 24?
SQL: SELECT MIN("round") FROM draft_history_7 WHERE "name" = 'jon olinger' AND "pick" < 24

Question: Before round 7, what is the greatest Pick # for a player that plays defensive tackle?
SQL: SELECT MAX("pick") FROM draft_history_7 WHERE "position" = 'defensive tackle' AND "round" < 7