How To Change Featured Images En Masse?

[Planet13]

I have 63 posts, all with the same featured image (1.jpg)

Is there a way to change them all to 2.jpg instead?

If i have to go into the DB, what table would i be looking for?

Thanks in advance.

(p.s. find and replace plugin didn't help).

[incrediBILL]

yes, assuming nobody needs 1.jpg anymore, just copy image 2.jpg into 1.jpg

[Planet13]

Ahh... brilliant. Thanks!