Update mysql table with data from another table.

Question

Is it possible to run an UPDATE command on mysql 5.0 with a sub select.

The command I would like to run is this:

UPDATE book_details
SET live = 1 
WHERE ISBN13 = '(SELECT ISBN13 FROM book_details_old WHERE live = 1)';

ISBN13 is currently stored as a string.

This should be updating 10k+ rows.

Thanks,

William

Answer 1

UPDATE book_details AS bd, book_details_old AS old
SET bd.live=1
WHERE bd.isbn13=old.isbn13
AND old.live=1;

Answer 2

Yes it is possible. The discussion on this page should help.

Answer 3

Just a litle change and you got it:

UPDATE book_details
SET live = 1 
WHERE ISBN13 in (SELECT ISBN13 FROM book_details_old WHERE live = 1);