SB_DBFUNC_API SQLRETURN DBConnect(SQLHANDLE& hEnv, SQLHANDLE& hDbc, SQLWCHAR* DNS, SQLWCHAR* user, SQLWCHAR* psw)
{
	SQLRETURN retVal;
	if (!SQL_SUCCEEDED(retVal = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &hEnv)))
		return retVal;
	if (!SQL_SUCCEEDED(retVal = SQLSetEnvAttr(hEnv, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, SQL_IS_INTEGER)))
		return retVal;
	if (!SQL_SUCCEEDED(retVal = SQLAllocHandle(SQL_HANDLE_DBC, hEnv, &hDbc)))
		return retVal;
	return SQLConnect(hDbc, DNS, SQL_NTS, user, SQL_NTS, psw, SQL_NTS);
}