pypyodbc.py 文件源码

def _NumOfCols(self):
        """Get the number of cols"""
        if not self.connection:
            self.close()

        NOC = c_short()
        ret = SQLNumResultCols(self.stmt_h, ADDR(NOC))
        if ret != SQL_SUCCESS:
            check_success(self, ret)
        return NOC.value