nFieldType | enum FieldType值,在CFieldExchange中声明。可以为下列值之一: ·CFieldExchange::outputColumn ·CFieldExchange::inputParam ·CFieldExchange::param ·CFieldExchange::outputParam ·CFieldExchange::inoutParam |
SetFieldType参数值 | 参数数据成员的类型
CFieldExchange::inputParam | 输入参数,传递到记录集查询或存储进程的值
| CFieldExchange::param | 同CFieldExchange::inputParam
| CFieldExchange::outputParam | 输出参数,记录集存储进程的返回值
| CFieldExchange::inoutParam | 输入/输出参数,传递到记录集存储进程或返回记录集存储进程的值
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