oracle 失效對象自動重新編譯

昨天看有個帖子說到的失效對象重新編譯的問題，然后發現自己公司里也出現莫名其妙的失效對象。

SQL code

--創建自動編譯失效過程事務記錄表
declare
  tabcnt integer := 0;
begin
  select count(*) into tabcnt from dba_tables where table_name='RECOMPILE_LOG';
  if tabcnt = 0 then
    execute immediate 'create table recompile_log(rdate date,errmsg varchar2(200))';
  end if;
end;
/

--創建編譯失效對象的存儲過程
create or replace procedure recompile_invalid_objects  
as
  str_sql varchar2(200);  --中間用到的sql語句
  p_owner varchar2(20);   --所有者名稱，即SCHEMA
  errm varchar2(200);     --中間錯誤信息
begin
  /*****************************************************/
  p_owner := 'owner';/***用戶名*************************/
  /*****************************************************/ 
  insert into recompile_log(rdate, errmsg) values(sysdate,'time to recompile invalid objects'); 
  
  --編譯失效存儲過程
  for invalid_procedures in (select object_name from all_objects
    where status = 'INVALID' and object_type = 'PROCEDURE' and owner=upper(p_owner))
  loop
    str_sql := 'alter procedure ' ||invalid_procedures.object_name || ' compile';
    begin
      execute immediate str_sql;
    exception
      When Others Then
      begin
        errm := 'error by obj:'||invalid_procedures.object_name||' '||sqlerrm;
        insert into recompile_log(rdate, errmsg) values(sysdate,errm);
      end;
    end;
  end loop;
  
  --編譯失效函數
  for invalid_functions in (select object_name from all_objects
    where status = 'INVALID' and object_type = 'FUNCTION' and owner=upper(p_owner))
  loop
    str_sql := 'alter function ' ||invalid_functions.object_name || ' compile';
    begin
      execute immediate str_sql;
    exception
      When Others Then
      begin
        errm := 'error by obj:'||invalid_functions.object_name||' '||sqlerrm;
        insert into recompile_log(rdate, errmsg) values(sysdate,errm);
      end;
    end;
  end loop;

  --編譯失效包
  for invalid_packages in (select object_name from all_objects
    where status = 'INVALID' and object_type = 'PACKAGE' and owner=upper(p_owner))
  loop
    str_sql := 'alter package ' ||invalid_packages.object_name || ' compile';
    begin
      execute immediate str_sql;
    exception
      When Others Then
      begin
        errm := 'error by obj:'||invalid_packages.object_name||' '||sqlerrm;
        insert into recompile_log(rdate, errmsg) values(sysdate,errm);
      end;
    end;
  end loop;
  
  --編譯失效類型
  for invalid_types in (select object_name from all_objects
    where status = 'INVALID' and object_type = 'TYPE' and owner=upper(p_owner))
  loop
    str_sql := 'alter type ' ||invalid_types.object_name || ' compile';
    begin
      execute immediate str_sql;
    exception
      When Others Then
      begin
        errm := 'error by obj:'||invalid_types.object_name||' '||sqlerrm;
        insert into recompile_log(rdate, errmsg) values(sysdate,errm);
      end;
    end;
  end loop;

  --編譯失效索引
  for invalid_indexs in (select object_name from all_objects
    where status = 'INVALID' and object_type = 'INDEX' and owner=upper(p_owner))
  loop
    str_sql := 'alter index ' ||invalid_indexs.object_name || ' rebuild';
    begin
      execute immediate str_sql;
    exception
      When Others Then
      begin
        errm := 'error by obj:'||invalid_indexs.object_name||' '||sqlerrm;
        insert into recompile_log(rdate, errmsg) values(sysdate,errm);
      end;
    end;
  end loop;

  --編譯失效觸發器
  for invalid_triggers in (select object_name from all_objects
    where status = 'INVALID' and object_type = 'TRIGGER' and owner=upper(p_owner))
  loop
    str_sql := 'alter trigger ' ||invalid_triggers.object_name || ' compile';
    begin
      execute immediate str_sql;
    exception
      When Others Then
      begin
        errm := 'error by obj:'||invalid_triggers.object_name||' '||sqlerrm;
        insert into recompile_log(rdate, errmsg) values(sysdate,errm);
      end;
    end;
  end loop;
 
end;
/

--創建任務計划，每天早上8點整執行該任務，且保證此任務有且只有一個
declare 
  jobcnt integer :=0;
  job_recompile number := 0;
  str_sql varchar2(200);
begin 
  select count(*) into jobcnt from all_jobs where what = 'recompile_invalid_objects;' and broken = 'N';
  if jobcnt > 0 then
    for jobs in (select job from all_jobs where what = 'recompile_invalid_objects;' and broken = 'N')
    loop
      str_sql := 'begin dbms_job.remove('||jobs.job||'); end;';
      begin
        execute immediate str_sql;
      exception
        When Others Then null;
      end;
    end loop; 
  end if;
  --創建任務計划
  dbms_job.submit(job_recompile,'recompile_invalid_objects;',sysdate,'TRUNC(SYSDATE + 1) + 8/24');
  --啟動任務計划
  dbms_job.run(job_recompile);
end;
/