How Extended Stored Procedures Work

Importante:
Esta característica se quitará en una versión futura de Microsoft SQL Server. No utilice esta característica en nuevos trabajos de desarrollo y modifique lo antes posible las aplicaciones que actualmente la utilizan. 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.

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