C ODBC demo not working

[priya6122003]

Following is simple connection demo.I using VC++ 8.0 ( windows server 2003 )to compile and getting lots of compilation errors.
could anybody please help me with this.

sample of the errors are :
:\program files\microsoft visual studio 8\vc\platformsdk\include\sqltypes.h(149) : error C2054: expected '(' to follow 'SQLHWND'
c:\program files\microsoft visual studio 8\vc\platformsdk\include\sqltypes.h(153) : error C2085: 'DATE_STRUCT' : not in formal parameter list
c:\program files\microsoft visual studio 8\vc\platformsdk\include\sqltypes.h(156) : error C2085: 'DATE_STRUCT' : not in formal parameter list
c:\program files\microsoft visual studio 8\vc\platformsdk\include\sqltypes.h(156) : error C2146: syntax error : missing ',' before identifier 'SQL_DATE_STRUCT'

this is the seemingly harmless code :

#include <windows.h>
#include <sqlext.h>
#include <sql.h>
#include <stdio.h>


main() 
{
	SQLHENV     henv;
	SQLHDBC     hdbc;
	SQLHSTMT    hstmt;
	SQLRETURN   retcode;

		  /*Allocate environment handle */
	retcode = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv);
	/* Set the ODBC version environment attribute */
	retcode = SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0); 
    /* Allocate connection handle */
    retcode = SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc); 
    /* Set login timeout to 5 seconds. */
    SQLSetConnectAttr(hdbc, SQL_LOGIN_TIMEOUT, (void*)5, 0);
	 /* Connect to data source */
	 retcode = SQLConnect(hdbc, (SQLWCHAR*) "Sales", SQL_NTS,
					  (SQLWCHAR*) "JohnS", SQL_NTS,
					  (SQLWCHAR*) "Sesame", SQL_NTS);
						/* Allocate statement handle */
	 retcode = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt); 

				if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) {
				/* Process data */
					  ;
					  ;
					  ;

				   SQLFreeHandle(SQL_HANDLE_STMT, hstmt);
				}
	  SQLDisconnect(hdbc);
	  SQLFreeHandle(SQL_HANDLE_DBC, hdbc);
	  SQLFreeHandle(SQL_HANDLE_ENV, henv);
}

Thankz