Question

I have a database(sql server 2005),now there are about 100000 records in the table called users, when I do query use linq to sql, it is very slower and slower.how can I do some operate to improve the speed?

Answer 1

You could (in order of preference)

• Save your query as a stored procedure
• Add indexes to your users
  table, for what you are querying for/sorting for
• Analyze your query
  (if it is complicated), see if there’s a less-resource-intensive way
  of doing it. There are graphical query analyzers to help you.
• As a last resort, not use LINQ, but instead ADO.NET Entity Framework, it’s significantly faster. But you’ll only see performance improvements for crazy stuff, and only if you’ve already done all of the above.