Home Database Mysql Tutorial 不使用游标,多张表的多条记录更新

不使用游标,多张表的多条记录更新

Jun 07, 2016 pm 03:29 PM
use renew cursor Record

BEGINFOR c IN (select distinct t2.name,t1.idfrom table1 t1,table2 t2where t1.id = t2.id)LOOPupdate table1 set name = c.name where id = c.id;END LOOP;END;

BEGIN
FOR c IN 
(
select distinct t2.name,t1.id
from table1 t1,
table2 t2
where t1.id = t2.id
)
LOOP
update table1 set name = c.name 
where id = c.id;
END LOOP;
END;
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