I am very much intersted in learning SQL Server. I read about Extended Stored Procedure which will be created outside SQL Server environment and will be accessed from C/C++. Kindly send me any program code which will be used to retrieve data outside SQL Server Environment.

I have given below an extended stored procedure which checks whether a filename given by user exists or not. I have named the extended stored procedure as sample_pro. I have given below the the sample_pro extended stored procedure

sample_pro[, <file_exists int> output]

exec master..sample_pro 'c:\example.file'

declare @exists int

exec master..sample_pro 'c:\example.file', @exists output

print @exists

In the above in the first line the extended stored procedure named as sample_pro is called with parameters and the second parameter returns an integer value if the file exists. The second line exec master..sample_pro 'c:\example.file' checks whether the file named as example.file exists or not and returns the record details fully the output value namely the result of file named as example.file exists or not is returned as an integer to the extended stored procedure named as sample_pro in the rest of the lines written above.