Top Answers

1. What is the difference between varchar and nvarchar?
   2002 votes
2. How do you effectively model inheritance in a database?
   169 votes
3. Subqueries vs joins
   164 votes
4. Should try...catch go inside or outside a loop?
   141 votes
5. What does "select count(1) from table_name" on any database tables mean?
   134 votes