CREATE TABLE table_36614 ("Round" FLOAT, "Pick #" FLOAT, "Overall" FLOAT, "Name" CLOB, "Position" CLOB, "College" CLOB)

In what Round was a Defensive Tackle Pick # less than 19?
SELECT COUNT("Round") FROM table_36614 WHERE "Position" = 'defensive tackle' AND "Pick #" < '19'
SELECT COUNT("Round") FROM "table_36614" WHERE "Pick #" < '19' AND "Position" = 'defensive tackle'