Empty unnecessary current values from new database tables
TRUNCATE wprenter_NEWID_commentmeta;
TRUNCATE wprenter_NEWID_comments;
TRUNCATE wprenter_NEWID_links;
TRUNCATE wprenter_NEWID_postmeta;
TRUNCATE wprenter_NEWID_posts;
TRUNCATE wprenter_NEWID_termmeta;
TRUNCATE wprenter_NEWID_terms;
TRUNCATE wprenter_NEWID_term_relationships;
TRUNCATE wprenter_NEWID_term_taxonomy;Update database with new files’ URL-s
UPDATE wprenter_NEWID_posts SET guid = REPLACE(guid, 'content/uploads/sites/OLDID', 'contents/uploads/sites/NEWID') WHERE guid LIKE '%content/uploads/sites/OLDID%';
UPDATE wprenter_NEWID_posts SET post_content = REPLACE(post_content, 'content/uploads/sites/OLDID', 'contents/uploads/sites/NEWID') WHERE post_content LIKE '%content/uploads/sites/OLDID%';