Write a query to find events in the highest 99.9 percentile for all-time gross sales. Hint: The structured query language (SQL) ntile function will return a dataset into a group of buckets as specified by the function's argument. For example, ntile (1000) orders will return the highest 99.9 percentile for a dataset of orders. create table sales( salesid integer not null, listid integer not null distkey, sellerid integer not null, buyerid integer not null, eventid integer not null, dateid smallint not null sortkey, qtysold smallint not null, pricepaid decimal (8,2), commission decimal(8,2), saletime timestamp);