UPDATE table_1 t1
LEFT JOIN table_2 t2 on t2.t1_id = t1.id
SET t1.t2_name = t2.name, t1.t2_age=t2.age
where t1.t1_id is not null;
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【MySQL】UPDATE LEFT JOIN
UPDATE table_1 t1
LEFT JOIN table_2 t2 on t2.t1_id = t1.id
SET t1.t2_name = t2.name, t1.t2_age=t2.age
where t1.t1_id is not null;
更多推荐
【MySQL】UPDATE LEFT JOIN
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