This content is no longer actively maintained. It is provided as is, for anyone who may still be using these technologies, with no warranties or claims of accuracy with regard to the most recent product version or service release.
The Exchange store provides a means to define schema information for items. By using the schema capabilities of the Exchange store, you can make schema information about your application discoverable to schema-aware applications such as the Exchange store Structured Query Language (SQL) query processor. Schema information is not rigidly enforced in the Exchange store as it would be in a relational database system such as Microsoft® SQL Server. Instead, schema information in the Exchange store is primarily used to provide a mechanism for schema-aware applications to discover the names of content classes and associated properties used for items in a particular application.
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