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joining two tables from different mysql servers

Posted on 2015-02-10
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Last Modified: 2015-02-12
Dear experts,

I wish to join two database tables with mysql. Here is my scenario.

I have a mysql server at 192.168.55.5 with schema sales and table name order.

I have another mysql server at 192.168.43.44 with schema personnel  and table name customer.

I wish to use a join query to see which customer has what orders.

How can I accomplish this in MySQL? Thanks
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Question by:Kinderly Wade
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Expert Comment

by:Phil Phillips
ID: 40602126
Take a look at the FEDERATED storage engine.  More specifically, look at how to create a FEDERATED table.

In a nutshell, the FEDERATED engine allows you to create local tables that basically pull their data from other databases.  Things to note for the server pulling the data:

You need to make sure that MySQL is compiled with the -DWITH_FEDERATED_STORAGE_ENGINE option
Server needs to be started with the --federated option
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Author Comment

by:Kinderly Wade
ID: 40606639
Hi Phil,

Sorry for the delay reply. Will there be anything else that I need to configure? For example sometimes when I use FEDERATED ENGINE, I will get some timeout for writing and reading the data. For small updates as in row count, few hundred rows are usually fine. If I am going for something like few thousand or few hundred thousand, I will get ERRORS like 1160 or 1159. Will there be another way to resolve it such as changing the my.cnf settings? Thanks.
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Phil Phillips earned 500 total points
ID: 40606962
I haven't yet had the chance to use large FEDERATED tables over higher latency links, so I'm not 100% sure on what you would need to configure.

Though, maybe you can try playing around with higher values for 'net_read_timeout', 'net_write_timeout', and 'max_allowed_packet'.
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Author Comment

by:Kinderly Wade
ID: 40607010
perfect that will do. Thanks Phil
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