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SQL code:

create or replace trigger article_log_file
after update or delete or insert
on article
for each row
begin
if updating then
insert into log_file values
(old.authorID,'update',old.artcleName,sysdate);

else if deleting then
insert into log_file values
(old.authorID,'delete',old.artcleName,sysdate);

else if inserting then
insert into log_file values
(new.authorID,'insert',new.artcleName,sysdate);
end if;
end;


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PL/SQL ifÓï¾äÓï·¨
if <Ìõ¼þ1> then
  <Óï¾ä1>;
elsif <Ìõ¼þ2> then
  <Óï¾ä2>;
elsif <Óï¾ä3> then
  ....
else
  <Óï¾än>;
end if;


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create or replace trigger article_log_file
after update or delete or insert
on article
for each row
begin
  if updating then
  insert into log_file values
(old.authorID,'update',old.artcleName,sysdate);

  elseif deleting then
  insert into log_file values
(old.authorID,'delete',old.artcleName,sy


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create or replace package PK_test 
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type cur_test is ref cursor;
end PK_test;
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