Table: draft_history_21
Columns: round
pick
overall
name
position
college

Question: What is the highest round of the player with an overall of 152?
SQL: SELECT MAX("round") FROM draft_history_21 WHERE "overall" = 152

Question: What is the average round of the defensive back player with a pick # greater than 5 and an overall less than 152?
SQL: SELECT AVG("round") FROM draft_history_21 WHERE "pick" > 5 AND "position" = 'defensive back' AND "overall" < 152

Question: What is the average overall of John Ayres, who had a pick # greater than 4?
SQL: SELECT AVG("overall") FROM draft_history_21 WHERE "name" = 'john ayres' AND "pick" > 4

Question: What is the name of the player with a pick # less than 5 and an overall of 284?
SQL: SELECT "name" FROM draft_history_21 WHERE "pick" < 5 AND "overall" = 284

Question: What is the average overall of Ken Whisenhunt, who has a pick # of 5?
SQL: SELECT AVG("overall") FROM draft_history_21 WHERE "pick" = 5 AND "name" = 'ken whisenhunt'

Question: What is the lowest pick # of John Ayres?
SQL: SELECT MIN("pick") FROM draft_history_21 WHERE "name" = 'john ayres'