How to implement SQLDependency caching in Asp.Net?

Question

HI谁能解释我如何在Asp.Net中实现SQL依赖缓存？

Answer 1

See David Hayden's article on the subject for an example.

Generally you connect the dependency to a command and add the dependency when inserting into the cache.

var command = new SqlCommand("SELECT something FROM dbo.ATable", connection);
var dependency = new SqlCacheDependency(command);
var result = ObtainResultUsingThe(command);

Cache.Insert("CacheKey", result, dependency);

Observe that special rules apply for your queries. Among others:

• Named columns must be selected (no SELECT *)
• Must use fully qualified name of table (eg dbo.ATable)

Edit:

For using the dependency in caching an entire page, you can follow this example .

Answer 2

How you implement SQL dependency caching will depend on the version of SQL server you are using. I would suggest reading this MSDN article to get a better understanding of how it hangs together.

Answer 3

hi answer with implementation can be found at below site

http://harismile.wordpress.com/2010/09/09/mvc-with-ef-sqldependencycache/