CREATE TABLE table_143 ("Player" TEXT, "Games Played" FLOAT, "Attempts" FLOAT, "Yards" FLOAT, "Touchdowns" FLOAT, "Longest run" FLOAT)

What was Eric Dickerson's longest run?
SELECT COUNT("Longest run") FROM table_143 WHERE "Player" = 'Eric Dickerson'
SELECT COUNT("Longest run") FROM "table_143" WHERE "Player" = 'Eric Dickerson'