1.MySQL数据库-多表关联更新数据
UPDATE t1 LEFT JOIN t2 ON t1.bsm= t2.t2bsmLEFT JOIN t3 ON t1.t3bsm= t3.bsmSET t1.bsm='111', t2.t2bsm='111', t3.bsm='111';
UPDATE t1 LEFT JOIN t2 ON t1.bsm= t2.t2bsmLEFT JOIN t3 ON t1.t3bsm= t3.bsmSET t1.bsm='111', t2.t2bsm='111', t3.bsm='111';