select * from 表 where 字段一 like '%搜索词%' or 字段二 like '%搜索词%' or 字段三 like '%搜索词%'
SELECT bid,bname,publish,author,kind FROM book WHERE delflag=0 AND bname LIKE '%王%'
查询bname中带王的
select * from t1 where con1 like '' or con2 like '' or con3 like ''