不好意思有发错了 字段忘给你改了
[code="java"]
create procedure pro
as
begin
update a set aType=1 where aField in (select bField from b)
end
go
[/code]

[code="sql"]
create procedure a_b
@str varchar(255)
as
begin
update a set aType=1 where aField in (select bField from b)
end
go
[/code]
试一试看看好使不 不好使在给你写

对了 往把@str q去掉了
最后是这样的：
[code="sql"]
create procedure pro
as
begin
update a set password='1' where userName in (select userName from b)
end
go
[/code]
执行是[code="sql"]exec pro;[/code]

1、尽量用exits；
2、用存储过程注意提交；

CREATE OR REPLACE PROCEDURE proName
begin
update a set aType=1 where exists (select 1 from bField where a.aField=b.bField);
commit;
end;