select * from bbs_article as a left join ( select * from links ) as b on a.aid = b.l_link where a.b_table = 'news/traditional_korean_medicine' and a.cat ='trend_of_policy' and a.main_disp = 'I' and a.is_del != '1' order by regdate desc limit 1

1040 : Too many connections

error file : /with.bv/