數據庫去空格 去table 去回車符號 去重

1 update bd_prod_cate c set c.cate_name = replace(c.cate_name,chr(9),'')//去掉tab符號的
2 update bd_prod_cate c set c.cate_name = replace(c.cate_name,chr(10),'')//去掉回車符號的
3 update bd_prod_cate c set c.cate_name = trim(c.cate_name)//去掉空格符號的

delete from tabname t1
 where rowid <> (select min(rowid)
                   from tabname  t2
                  where t1.col_name = t2.col_name
                    and t1.id != t2.id);

 

 

delete from userinfo where sss in     (select sss from          (select sss from userinfo  group by sss having count(sss)>1)  tmp1)and id not in      (select id from          (select min(id) id from userinfo group by sss having count(sss)>1) tmp2);