Ryan Byrd wrote:
Can you do this across databases? I don't think you can.
Using INSERT INTO ... SELECT you can copy data from one database to
another. You need the correct privileges for both.

Enter the source database, database1:
use database1;

Then write to which fields in the destination database you want to
copy to, database2:
INSERT INTO database2.table1 (field1,field3,field9)
SELECT table2.field3,table2.field1,table2.field4
FROM table2;

I tested this finally and compared the results to mysqldump. It took 6.5 hours to do it this way, and the "mysqldump" way took 2 hours. In both cases I turned off foreign key checks. Weird. I guess I'll stick with mysqldump for now.

Thanks for the suggestions everyone! I wish MySQL had a nice copy-on-write database copy. That'd be exactly what I need (by the way, this isn't really for backups, but schema migration).

--Dave


P.S. Thunderbird's spell check wanted to correct mysqldump to "dumplings". I was tempted to let it make the correction, but in the end self restraint won...

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