Sqlcachedependency not invalidating cache best std dating service

In SQL Server 7 and SQL Server 2000, table-level cache invalidation is supported using a polling system. NET process polls the database (pull model) every so many seconds to monitor which tables have changed since it last checked.Even though the pull model works for most cases, it is not an efficient approach.The Sql Data Source control also has the Enable Caching property set to true, which results in the Sql Data Source automatically caching the data retrieved by the Select Command.

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With the ability to set caching attributes at the Sql Data Source control level, you now have a finer level of control over the cached data. NET 2.0 also provides a new control named Substitution, which you can use to inject dynamic content in an otherwise cached Web page.

If you have a page with output-caching but still want to display dynamic content (that needs to be generated every time the page is requested), consider using the Substitution control.

NET 1.x did not provide a mechanism for invalidating the data in a cache object when the data in a database changes. NET 2.0 will also provide functionalities to cache the output of a Sql Data Source control, which enable you to take advantage of caching without writing a single line of code.

This much sought after feature will finally ship with ASP. This article discusses some of these new caching features and demonstrates how you can employ them in your Web applications. NET 2.0, caching has improved in a couple of notable ways.

The SQL Server-based cache invalidation mechanism works with SQL Server 7.0 and above.

However, SQL Server 7. support only the table-level cache invalidation mechanism.

This cache invalidation mechanism is a new feature in ASP.

NET 2.0 wherein a cached page or a data source control can be tied to a particular table in a SQL Server database.

Once you perform this initial association, changing the contents of the table results in the cached object being automatically invalidated.

You should consider using SQL cache invalidation with the data source controls when you need to work with the same database data in multiple pages.

The Sql Data Source control is designed to work with SQL Server, OLE DB, ODBC, and Oracle databases.

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