使用Java，Hibernate进行数据库迁移

Question

I have three databases in mysql residing in three different servers. I want to combine the data from the three servers and consolidate as a single database. Is it possible to dos o in Hibernate?

Answer 1

您应该使用在Toad社区版本中可以找到的任何实用程序的导入/导出向导

Answer 2

You could read 1/multiple records of data at a time from 2 of the databases and check whether the records exists in the third database. If not, then write.

Depending on your memory constraints, you could try keeping a master data table in memory as a collection, adding to it from all 3 databases and the writing it once the table is done