mysql 根据一张表更新另一张表

update tablea a, tableb b set a.bname=b.name where a.bid=b.id and a.id between 262 and 271

between 是>= and <=，即包含两个边界

update tablea a inner join tableb b on a.bid=b.id set a.bname=b.name where a.id between 262 and 271