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go
select DbRole = g.name, MemberName = u.name, MemberSID = u.sid
from sys.database_principals u, sys.database_principals g, sys.database_role_members m
where g.principal_id = m.role_principal_id
and u.principal_id = m.member_principal_id
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create table t_emp_log212
(
who varchar2(10) not null,
action varchar2(10) not null,
actime date
);
create or replace trigger tri_emp_insert
before insert
on t_emp
begin
insert into t_emp_log(who,action,actime)values(user,'insert',sysdate);
end ......
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