Foreign key is a field in the table that is primary key in another table. Primary Key can't accept null values. Foreign key can accept multiple null value. By default, Primary key is clustered index and data in the database table is physically organized in the sequence of clustered index. Foreign key do not automatically create an index, clustered or non-clustered. You can manually create an index on foreign key.
1 Competitive cheerleading outfits can cost anywhere from $300 to $500. 2  Anytime the cheer team enters a competition, a competition fee will have to be paid, which can vary anywhere from $100 to as much as $1,000 or more.3  Hotels, airline tickets and other accommodations, if the competition is far away, should be budgeted. Aside from the start up fees, plan on spending at least $75 to $200 per month to cheer in a competitive setting. 2  The yearly costs for competitive cheerleading, on average, can range from $2,000 to as much as $4,300; this would include everything necessary to participate with the club.
1 Answers, she paid a $100 monthly fee, an $850 competition fee per year and $500 for the uniform. 2  Other fees included makeup, bows, yearly banquets, parties, and traveling costs. 3  She stated that the average competitive cheer member should be prepared to spend at least $3,000 or more a year. Overall, the costs are going to greatly depend on how much the team is going to travel for the year and the level of competition in which they participate. 2  According to one mom on Yahoo! 3  Answers, she paid a $100 monthly fee, an $850 competition fee per year and $500 for the uniform.