mysql - Easiest way to copy a table from one database to another?

Question

What is the best method to copy the data from a table in one database to a table in another database when the databases are under different users?

I know that I can use

INSERT INTO database2.table2 SELECT * from database1.table1

But here the problem is that both database1 and database2 are under different MySQL users. So user1 can access database1 only and user2 can access database2 only. Any idea?

Answer 1

If you have shell access you may use mysqldump to dump the content of database1.table1 and pipe it to mysql to database2. The problem here is that table1 is still table1.

mysqldump --user=user1 --password=password1 database1 table1 
| mysql --user=user2 --password=password2 database2

Maybe you need to rename table1 to table2 with another query. On the other way you might use sed to change table1 to table2 between the to pipes.

mysqldump --user=user1 --password=password1 database1 table1 
| sed -e 's/`table1`/`table2`/' 
| mysql --user=user2 --password=password2 database2

If table2 already exists, you might add the parameters to the first mysqldump which dont let create the table-creates.

mysqldump --no-create-info --no-create-db --user=user1 --password=password1 database1 table1 
| sed -e 's/`table1`/`table2`/' 
| mysql --user=user2 --password=password2 database2