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ͬһ¸ö¿âÖÐ2Õűí simple,simple2
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ÏÖÔÚÐèÒª½«simple2ÖÐ×Ö¶Îname¶ÔÓ¦µ½simpleÖÐ
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update simple1 set name = (select name from simple2 where simple2.id = simple1.id);

update simple1 a set a.name =(select b.name from simple2 b where a.id=b.id)


update simple1 set name = (select name from simple2 where simple2.id = simple1.id);

1¡¢2¥дµÄÌõ¼þÓï¾ä£¨Èçselect b.name from simple2 b where a.id=b.id£©
¾ù±¨¡¯a¡®.¡¯id¡®±êʶ·ûÎÞЧ»òÕß 'simple'.'id'±êʶ·ûÎÞЧ


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SQL code:

create table simple1 (id number, name varchar2(20));
create table simple2 (id number, name varchar2(20));

insert into simple1 values (1, 'Tom');
insert into simple1 values (2, 'Jack');
insert into simple1 values (3, 'Andy');

insert into simple2 values (1, 'Amy');
insert into simple2 values (2, 'Mary');
insert into simple2 values (3, 'Cindy');

update simple1 set name = (select name from simple2 where simple2.id = simple1.id);





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