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  SQL Server Tips by Gama and Naughter

Implementation

To implement the XP, we will use the XP++ framework to implement the boilerplate code required. We follow the procedure for adding XP++ support to our project as described in the XP++ chapter.

The code required to setup the basic XP framework for XP_INI is contained in the module “xp_ini.cpp” and contains the standard code required by the XP++ framework to create an XP. The DLL exposes 11 XP’s using the following XP++ code:

IMPLEMENT_XP(XP_INI_WRITESTRING, CIniWriteStringExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_WRITEINTEGER, CIniWriteIntegerExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_READSTRING, CIniReadStringExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_READINTEGER, CIniReadIntegerExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_GETSECTIONS, CIniGetSectionsExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_READSECTION, CIniReadSectionExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_DELETESECTION, CIniDeleteSectionExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_DELETEKEY, CIniDeleteKeyExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_GETKEYS, CIniGetKeysExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_WRITE, CIniWriteExtendedStoredProcedure)
IMPLEMENT_XP(XP_INI_READ, CIniReadExtendedStoredProcedure)

Each of the 11 classes which implement the XP’s are implemented in the module “xp_iniprocs.h/cpp”.

 


The above book excerpt is from:

Super SQL Server Systems
Turbocharge Database Performance with C++ External Procedures

ISBN: 0-9761573-2-2
Joseph Gama, P. J. Naughter

 http://www.rampant-books.com/book_2005_2_sql_server_external_procedures.htm  

   

 

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