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Editorial Team
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Asked: 2026-06-09T11:31:53+00:00

I have a database (db4) that was created by MySQL4, and a database (db5)

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I have a database (db4) that was created by MySQL4, and a database (db5) that was created by MySQL5. db4 contains several tables with the charset latin1 and several indices, but no data that was encrypted using the MySQL “PASSWORD” function. db5 is empty.

I want to migrate all tables and indices from db4 to db5 (which are actually on the same server). Ideally this should be done without any loss of information and within a short period of time.

Which terminal commands do I need to download the complete database from MySQL4 and insert the data afterwards to db5? Do I have to re-create the indices?

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  1. Editorial Team

    It can be also done within a single step, using the following command:

     mysqldump -u dbo4 --password="..." --default-character-set="latin1" db4 | mysql -S /tmp/mysql5.sock -u dbo5 --password="..." --default-character-set="latin1" db5

    Unfortunately the standard-values with special characters are not correctly imported, and there seems to be no way to avoid that: How to maintain character-set of standard-values when uploading MySQL-dump.

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