In most DBMSs, you can only have one clustered index per table, though there are systems that support multiple clusters (DB2 being an example). Like a regular index that is stored unsorted in a database table, a clustered index can be a composite index, such as a concatenation of first name and last name in a table of personal information. Share this:
Best Answer: Four laps equals one mile on the track. (1600) Two laps is a half mile. (800m) The track is divided into four 100m parts for it to equal one lap. Therefore, 400m equals one lap. Also, usually on a high school track, there are 6 lanes. I hope I didn't confuse you.
Best Answer: Here in England there are EIGHT furlongs to the mile. Maybe in America where everything is allegedly Bigger and Better there might be less and called something different ! A furlong is an eighth of a mile. There are 8 furlongs in a mile. 2 furlongs is a quarter mile. 4 is a half mile and 8 is a mile. There you go! Source(s): Race fan and horse owner.