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# 选择迁移策略
<a name="migration-strategy"></a>

过渡到 Iceberg 格式时，在就地迁移和完全迁移之间做出选择至关重要。要确定最适合您特定需求的方法，请考虑以下问题和建议：


| 问题 | 建议 | 
| --- | --- | 
|  **数据文件格式是什么（例如，CSV 或 Apache Parquet）？**  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_cn/prescriptive-guidance/latest/apache-iceberg-on-aws/migration-strategy.html)  | 
|  **是否要更新或整合表架构？**  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_cn/prescriptive-guidance/latest/apache-iceberg-on-aws/migration-strategy.html)  | 
|  **更改分区策略会给表带来好处吗？**  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_cn/prescriptive-guidance/latest/apache-iceberg-on-aws/migration-strategy.html)  | 
|  **添加或更改排序顺序策略会给表格带来好处吗？**  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_cn/prescriptive-guidance/latest/apache-iceberg-on-aws/migration-strategy.html)  | 
|  **表格里有很多小文件吗？**  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_cn/prescriptive-guidance/latest/apache-iceberg-on-aws/migration-strategy.html)  |