Not sure if this is possible or that this is the best place to ask, but worth a try, I am not very experienced with myPHPadmin, I have managed to change/update custom field names, but I would like to copy and/or duplicate the post_title of the custom post to a custom field value.
I have used the following (successfully) to replace a custom field name:
UPDATE "wp_postmeta" SET "meta_key" = replace(meta_key, "OLD-CUSTOM-NAME", "NEW-CUSTOM-NAME"")
But I am not clear on how to copy the post_title from another table to replace a current available custom post value, does anybody know the code needed?
I hope that makes sense, thank you in advance!