Check Subdomein Got error 'empty (sub)expression' from regexp in SELECT id,sleutel,url,synoniemen,taalpar FROM subdomein WHERE ((kenmerk REGEXP 'ameland') ) AND ((sleutel regexp '(nesserduinen|42a||reviews!)') OR (synoniemen regexp '(nesserduinen|42a||reviews!)')) AND ((talen&1)>0) ORDER BY sleutel DESC;
Reviews van Vakantiehuis Nesserduinen 42A