Hi,

Probably one or more arc. files are backup up but con not be deleted.

When you lsof file, you may not see anything.

1)

Backup arc file:

$ cp file1.arc file1.arc.old

2)

remove arc file as a superuser:

# rm file1.arc

3)

RMAN> crosscheck archivelog all;

4)
* run archive backup.

try and pray

Hi,

You can use this to delete host:

exec sysman.mgmt_admin.cleanup_agent(‘hostname:port’);

You can use this to delete a target:

declare
v_target_name VARCHAR2(256);
v_target_type VARCHAR2(64);
v_entry_name VARCHAR2(256);
begin
–type target name that you want to delete
v_entry_name:=’LISTENER_MYDB_myhost’;
–type target type that you want to delete
v_target_type:=’oracle_listener’;
select target_name, target_type into v_target_name, v_target_type from sysman.MGMT$TARGET where target_name=v_entry_name;
sysman.mgmt_admin.delete_target(v_target_name, v_target_type);
commit;
end;
/

try and pray

Hi,

If you save a workflow (*.wft) to a database and hit his error, you probably use the wrong username:

Oracle Error: ORA-00942: table or view does not exist.  SQL text: SELECT NLS_LANGUAGE FROM WF_LANGUAGES WHERE :l IN (NLS_LANGUAGE, CODE)

try and pray

Hi,

You forgot to run root.sh or a problem occured while running root.sh.

So, simply run these:

# Become superuser

$ su -

# cd $ORACLE_HOME

# chmod 6750 bin/nm?

# chmod 700 bin/emdctl

# chmod 700 bin/emagent

# chown root bin/nm?

# su – oracle

$ emctl stop agent
$ emctl start agent

try and pray

Hi,

[oracle@myserver patch]$ mv $ORACLE_HOME/OPatch $ORACLE_HOME/OPatch_old
mv: cannot move `/u01/app/11.2.0/grid/OPatch/’ to `/u01/app/11.2.0/grid/OPatch_old’: Permission denied

You must either unlock GRID_HOME or you can move OPatch directory as a superuser.

[oracle@grid_server1 ]$ cd /u01/app/11.2.0/grid/crs/install
[oracle@grid_server1 ]$ sudo perl rootcrs.pl -unlock -crshome /u01/app/11.2.0/grid

Using configuration parameter file: /u01/app/11.2.0/grid/crs/install/crsconfig_params

Undefined subroutine &main::read_file called at /u01/app/11.2.0/grid/crs/install/crspatch.pm line 86.

If you hit an error like above, here is the workaround (according to this paper: roothas.pl -patch or rootcrs.pl -patch Fails with ‘Undefined subroutine’ [ID 1268390.1]):

# Take a backup of the file /crs/install/crsconfig_lib.pm
$ cd /crs/install
$ cp crsconfig_lib.pm crsconfig_lib.pm.bak
# Make the following change in that file crsconfig_lib.pm
#From
# my @exp_func = qw(check_CRSConfig validate_olrconfig validateOCR
#To
# my @exp_func = qw(check_CRSConfig validate_olrconfig validateOCR read_file

#Execute relock:

[oracle@myserver ]$ cd /u01/app/11.2.0/grid/crs/install
[oracle@myserver ]$ sudo perl rootcrs.pl -patch -crshome /u01/app/11.2.0/grid
Using configuration parameter file: /u01/app/11.2.0/grid/crs/install/crsconfig_params
ACFS-9200: Supported
CRS-4123: Oracle High Availability Services has been started.

try and pray

Hi,

You can create a job for another user using this script:

–Mustafa DOGANAY

undefine LOGUSER
undefine PRIVUSER
undefine SCHEMAUSER
undefine WHAT
undefine NEXTDATE
set serveroutput on
prompt If you are using single quote in any of these parameters, use 2 (”)
accept LOGUSER prompt ‘LOG_USER……: ‘
accept PRIVUSER prompt ‘PRIV USER…..: ‘
accept SCHEMAUSER prompt ‘SCHEMA_USER…: ‘
accept WHAT prompt ‘WHAT……….: ‘
accept NEXTDATE prompt ‘NEXT_DATE…..: ‘
accept INTERVAL prompt ‘INTERVAL……: ‘
–sysdate+1/(24*60)
–trunc(sysdate,”MI”)+1/48
declare
job_num number;
nlsvar varchar2(4000);
envvar raw(32);
begin
select nls_env,misc_env into nlsvar,envvar from dba_jobs where rownum<2 and nls_env is not null and misc_env is not null ;
select max(job)+1 into job_num from dba_jobs;
sys.dbms_ijob.submit(job=>job_num,luser=>’&&LOGUSER’,puser=>’&&PRIVUSER’,cuser=>’&&SCHEMAUSER’,what=>’&&WHAT’,next_date=>&&NEXTDATE, interval=>’&&INTERVAL’, broken=>FALSE,nlsenv=>nlsvar,env=>envvar);
commit;
dbms_output.put_line(‘Job number: ‘||job_num);
end;
/
undefine LOGUSER
undefine PRIVUSER
undefine SCHEMAUSER
undefine WHAT
undefine NEXTDATE

You can also remove, broken or run another user’s job like these:

exec dbms_ijob.remove(jobnum);
exec dbms_ijob.broken(jobnum,true);
exec dbms_ijob.run(jobnum);

try and pray

Hi,

If you hit this error, there are 2 possibilities:

1)

SQL> ALTER SESSION FORCE PARALLEL DML PARALLEL 4;

Session altered.

SQL> DELETE mytable WHERE col1>100;

32000 rows deleted.

SQL> select * from mytable;

select * from mytable

* ERROR at line 1:

ORA-12838: cannot read/modify an object after modifying it in parallel

If you modified has table in parallel, then you may get an ORA-12838 error message.

Solution:

SQL> ALTER SESSION FORCE PARALLEL DML PARALLEL 4;

Session altered.

SQL> DELETE mytable WHERE col1>100;

200 rows deleted.

SQL> commit or rollback

then

SQL> select * from mytable;

2)

When you use 2 inserts and append hints, you must run commit; after every statement:

insert /*+ append */ into mytable1 select * from mytable2;

insert /*+ append */ into mytable1 select * from mytable2;

*
ERROR at line 1:
ORA-12838: cannot read/modify an object after modifying it in parallel

simply use commit after every append hinted insert:

insert /*+ append */ into mytable1 select * from mytable2;

commit;

insert /*+ append */ into mytable1 select * from mytable2;

commit;

– or do not use append hint

try and pray

Sometimes you need to replace a string in all views in a whole schema. Well, you may want to use this:
(you can change view to any other object type)

–coded by Mustafa DOGANAY
–03.02.2011
declare
x clob;
y varchar2(32000);
z number;
t varchar2(32000);
CURSOR view_list IS
select view_name from dba_views where owner=’MYSCHEMA’;
begin
for i in view_list loop
x:=dbms_metadata.get_ddl(‘VIEW’,i.view_name);
y:=dbms_lob.substr(x, 32000, 1 );
z:=instr(y,’OLDSTRING’,1,1);
if (z!=0)
then
t:=replace(y,’OLDSTRING’,'NEWSTRING’);
dbms_output.put_line(t);
end if;
end loop;
end;

/

Imagine that you are creating a view:

create or replace view user1.view1


as

select a.*, b.* from user2.table1 a, user2.table2 b;


grant view1 to user3;


ORA-01720: GRANT OPTION DOES NOT EXIST FOR...

solution:

grant tables in the view with grant option:


grant select on user2.table1 to user1 with grant option;


grant select on user2.table2 to user1 with grant option;

try and pray

Hi,

Simply use this:

TYPE return_cur IS REF CURSOR RETURN mytable%ROWTYPE;

try and pray