How Extended Stored Procedures Work

重要提示：
后续版本的 Microsoft SQL Server 将删除该功能。请不要在新的开发工作中使用该功能，并尽快修改当前还在使用该功能的应用程序。 Use CLR Integration instead.

The process by which an extended stored procedure works is:

When a client executes an extended stored procedure, the request is transmitted in tabular data stream (TDS) or Simple Object Access Protocol (SOAP) format from the client application to Microsoft SQL Server.
SQL Server searches for the DLL associated with the extended stored procedure, and loads the DLL if it is not already loaded.
SQL Server calls the requested extended stored procedure (implemented as a function inside the DLL).
The extended stored procedure passes result sets and return parameters back to the server by through the Extended Stored Procedure API.

请参阅