Example: Creating a Procedure Using PARAMETER STYLE SQL - Advanced SQL Engine - Teradata Database

The following CREATE PROCEDURE request installs the external SQL procedure named GetRegionXSP on the Teradata platform:

   CREATE PROCEDURE GetRegionXSP      (INOUT region VARCHAR(64))    LANGUAGE C    NO SQL    EXTERNAL NAME 'CS!getregion!xspsrc/getregion.c!F!xsp_getregion'    PARAMETER STYLE SQL;

The only difference between this definition and the definition provided in Example: Creating a Procedure Using PARAMETER STYLE TD_GENERALis the PARAMETER STYLE declaration: this procedure uses parameter style SQL.

The following excerpt shows the fragment of the C procedure code that declares a parameter style of SQL:

   /*****  C source file name: getregion.c  *****/        #define  SQL_TEXT Latin_Text    #include "sqltypes_td.h"    #include <string.h>        void xsp_getregion( VARCHAR_LATIN *region,                        int           *region_isnull,                        char           sqlstate[6],                        SQL_TEXT       extname[129],                        SQL_TEXT       specific_name[129],                        SQL_TEXT       error_message[257] )    {         …    }

See Teradata Vantage™ - SQL External Routine Programming, B035-1147 for details about coding external SQL procedures.