这一过程通常十分庞大，它牵涉到数据库方案对象移植，数据移植，代码移植，系统测试等很多方面的技术问题。
This is often a large process which involves lots of technique content including database object migration, data migration, code migration, system testing, etc.
这一过程通常十分庞大，它牵涉到数据库方案对象移植，数据移植，代码移植，系统测试等很多方面的技术问题。
This is often a large process which involves lots of technique content including database object migration, data migration, code migration, system testing, etc.
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