剛升級(jí)一會(huì)就出現(xiàn)
Multiple primary key defined
alter table ***_ecms_infoclass_shop change classid classid int(10) unsigned NOT NULL default '0', DROP INDEX classid, add PRIMARY KEY(classid);
這個(gè)按字面意思就是
數(shù)據(jù)表結(jié)構(gòu)問(wèn)題，提示：已經(jīng)有存在的主鍵，不能再增加主鍵