DROP TABLE url;
DROP TABLE urlinfo;
DROP TABLE dict;
DROP TABLE ndict;
DROP TABLE crossdict;
DROP TABLE ncrossdict;
DROP TABLE categories;
DROP TABLE qtrack;
DROP TABLE qinfo;
DROP TABLE server;
DROP TABLE srvinfo;
DROP TABLE links;
DROP TABLE storedchk;
DROP TABLE cachedchk;
DROP TABLE cachedchk2;
DROP TABLE robots;
DROP TABLE cookies;
