Open or convert the .dat files

How to open image files that have a file extension ".dat". I have Windows Vista and most of the photo files are .jpg, .gif

You may be able to view the .dat file if you rename in .jpg.

Also... the free software IrfanView can be able to open the file:

(FWIW... it's always a good idea to create a system)
Restore point before installing software or updates)

IrfanView and IrfanView plugins
http://www.download.HR/download-IrfanView.html
(scroll down a bit for the download links)
(Download plugins too)

Tags: Windows

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I CAN QUERY A TABLE EVEN AFTER THE DELETION OF THE DATA FILE

Hello
Can someone explain to me the reason why I am able to interview some tables even after the deletion of the data that are associated with file?
SQL > select table_name, tablespace_name from dba_tables where owner = 'SCOTT ';
TABLE_NAME, TABLESPACE_NAME
------------------------------ ------------------------------
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SQL > exit
Disconnected from the database to Oracle 11 g Enterprise Edition Release 11.2.0.1.0 - Production
With partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@localhost orcl] $ rm /app/oracle/oradata/orcl/users01.dbf
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SQL * more: Production version 11.2.0.1.0 on Mon Mar 30 21:35:54 2015
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With partitioning, OLAP, Data Mining and Real Application Testing options
SQL > select count (*) from test2;
Select count (*) from test2
*
ERROR on line 1:
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ORA-01110: data file 4: ' / app/oracle/oradata/orcl/users01.dbf'
ORA-27041: could not open the file
Linux error: 2: no such file or directory
Additional information: 3
SQL > select count (*) of the test;
COUNT (*)
----------
5000
SQL >
The first output is as expected. But why am I still able to query the table of test, even if the data file has been deleted.

Hello

The process of database have a file handle for the data file - this remains even when the file is deleted (it disappears from the normal file system navigation)

You can see if you have lsof installed

just try

lsof | grep datafile_name

Once the database is restarted and the released file handle so you will not be able to do this any more - and in fact you will get errors when it can't find the file.

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RMAN issues - no backup or copy of the data file found

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run
{
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Restore controlfile to ' / u01/app/oracle/bkp/controlfile/c-123131414-20140509-00.ctl';
change the editing of the database;
restore the database;
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}
I get error RMAN-06023: no backup or copy of the data file found
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Problem copying the data file

Hello
I'm relatively new to essbase. I'm trying to see if taking the back to the top of the map files, data file and security, can restore us the essbase application.
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Hello

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Move the data files on the standby server without moving primary Oracle 11 g r2

Hi all

Oracle 11g 2 with EBS 11.5.0.2 version.

The size of one of the mounting points on the standby is full and I'm going through one of the data files to another mount point without making any changes to the primary level.

I tried Google and came across this link:

http://oraclesea.blogspot.in/2011/12/move-datafiles-on-standby-server.html

But it did not work... I had to start the database with the spfile to work.

The steps mentioned in the blog:

Include below parameter in standby parameter file
DB_FILE_NAME_CONVERT = '/primary_location/xyz.dbf','/standby_location/xyz.dbf'
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE cancel;
shut immediate
startup nomount pfile=initSCSL.ora
alter database mount standby database ;
alter system set standby_file_management='MANUAL' SCOPE=MEMORY ; 
! cp /primary_location/xyz.dbf'  /standby_location/xyz.dbf
alter database rename file  '/primary_location/xyz.dbf' to '/standby_location/xyz.dbf';
alter system set standby_file_management='AUTO' SCOPE=MEMORY ; 
alter database recover managed standby database parallel 4 disconnect from session;

Can you please help me with the right steps...

Concerning
KK

Edited by: 903150 Sep 26, 2012 22:41

Here is an example for you.

Database pending:

SQL> select status,instance_name,database_role from v$database,v$instance;

STATUS       INSTANCE_NAME    DATABASE_ROLE
------------ ---------------- ----------------
OPEN         srprim           PHYSICAL STANDBY

SQL> select file_name from dba_data_files;

FILE_NAME
--------------------------------------------------------------------------------
C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\USERS01.DBF
C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\UNDOTBS01.DBF
C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\SYSAUX01.DBF
C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\SYSTEM01.DBF
C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\USERS02.DBF

SQL> select process,status,sequence# from v$managed_standby;

PROCESS   STATUS        SEQUENCE#
--------- ------------ ----------
ARCH      CONNECTED             0
ARCH      CONNECTED             0
ARCH      CONNECTED             0
ARCH      CONNECTED             0
RFS       IDLE                  0
RFS       IDLE                154
MRP0      WAIT_FOR_LOG        154

7 rows selected.

SQL> show parameter name_convert

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert                 string
log_file_name_convert                string
SQL> alter database recover managed standby database cancel;

Database altered.

SQL> shut immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

M:\>copy C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\USERS02.DBF C:\APP\SHIVANANDA.RAO\ORADATA\DBTEST\USERS02.DBF
1 file(s) copied.

M:\>sqlplus sys/oracle@srprim as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Thu Sep 27 14:57:16 2012

Copyright (c) 1982, 2010, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> startup mount
ORACLE instance started.

Total System Global Area  778387456 bytes
Fixed Size                  1374808 bytes
Variable Size             494929320 bytes
Database Buffers          276824064 bytes
Redo Buffers                5259264 bytes
Database mounted.
SQL> alter system set standby_file_management=manual;

System altered.

SQL> alter database rename file 'C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\USERS02.DBF' to 'C:\APP\SHIVANANDA.RAO\ORADA
A\DBTEST\USERS02.DBF';

Database altered.

SQL> alter database recover managed standby database disconnect from session;

Database altered.

SQL> select process,status,sequence# from v$managed_standby;

PROCESS   STATUS        SEQUENCE#
--------- ------------ ----------
ARCH      CONNECTED             0
ARCH      CONNECTED             0
ARCH      CONNECTED             0
ARCH      CONNECTED             0
RFS       IDLE                  0
RFS       IDLE                155
MRP0      WAIT_FOR_LOG        155

7 rows selected.

SQL> select name from v$datafile;

NAME
--------------------------------------------------
C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\SYSTEM01.DBF
C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\SYSAUX01.DBF
C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\UNDOTBS01.DBF
C:\APP\SHIVANANDA.RAO\ORADATA\SRPRIM\USERS01.DBF
C:\APP\SHIVANANDA.RAO\ORADATA\DBTEST\USERS02.DBF

1. you must close the database pending.
2 copy the file that you want to move to the different mount point using the OS commands.
3. Mount the standby database.
4 rename the data through database level. Make sure that the standby_file_management is set to MANUAL
5. start the MRP on the standby database.

Please do not use more than one response to the thread ID. Because you created this thread with ID 903150, I propose to answer with the same ID, not the ID of the other.

Get the former locations of the data files and Redo logs
Version: 11.2
Platform: Solaris 10

When we manage hundreds of DBs, we do not know the locations of all DB files these allows DBs. say a DB goes down and you have all the required RMAN backups.

When you restore the DB in a new location in the path of the new server, you must run the commands for the data files and ORLs below. But how do we know

The former location of the data files.

B. the old location of redo online stores that I can run

run
```
alter database rename file 'oldPath_of_OnlineRedoLogs' to 'newPath_of_OnlineRedoLogs' ;  --- Without this command , the restored control file will still reflect the old control file location
```
```
run {
set newname for datafile 1 to '/u04/oradata/lmnprod/lmnprod_system01.dbf' ;
set newname for datafile 2 to '/u04/oradata/lmnprod/lmnprod_sysaux01.dbf' ;
set newname for datafile 3 to '/u04/oradata/lmnprod/lmnprod_undotbs101.dbf' ;
set newname for datafile 4 to '/u04/oradata/lmnprod/lmnprod_audit_ts01.dbf' ;
set newname for datafile 5 to '/u04/oradata/lmnprod/lmnprod_quest_ts01.dbf' ;
set newname for datafile 6 to '/u04/oradata/lmnprod/lmnprod_yelxr_ts01.dbf' ;
.
.
.
.
.
}
```
Hello

With the help of Oracle 11.2, you can use feature 'set newname for database' using OMF.
```
SET NEWNAME FOR DATABASE TO '/oradata/%U';
RESTORE DATABASE;
SWITCH DATAFILE ALL;
SWITCH TEMPFILE ALL;
RECOVER DATABASE;
```
After the restore and recover databases (i.e. before resetlog open) you can do to rename redolog. Just a query column member from v$ logfile and deliver ' alter database rename file 'oldPath_of_OnlineRedoLogs' to 'newPath_of_OnlineRedoLogs ';

When we use the DSO is much easier to use OMF because Oracle automatically creates the directory structure.
But when we use the file system that the OMF does not serve due DBA dislikes system generated on file system names.

If you don't like OMF file system, you can use the script on thread below to help restore you using readable for datafile names, tempfile, and redo.

{message: id = 9866752}

Kind regards
Levi Pereira

Defining the new path for the data files for restoring using the VALUE of NEWNAME FOR DATABASE

Version: 11.2.0.3 Linux

Today, I had to do a restore RMAN to a new server and I came across the post following RTO on the VALUE of NEWNAME FOR DATABASE

ALTER database open resetlogs upgraded; error to throw

So, I thought to use it to indicate the new location of the data files to restore.

That's what I did
===================

Restore the control file and catalog items to backup using the command of CATALOGUE START WITH. Then I started the restoration

$ rman target / cmdfile=restore.txt

Recovery Manager: Release 11.2.0.3.0 - Production on Thu Jul 26 04:40:41 2012

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database: SPIKEY (DBID=2576163333, not open)

RMAN> run
2>  {
3>  SET NEWNAME FOR DATABASE TO '/fnup/hwrc/oradata/spikey';
4>  restore database  ;
5>  }
6>
7>
8>
executing command: SET NEWNAME
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of set command at 07/26/2012 04:40:43
RMAN-06970: NEWNAME '/fnup/hwrc/oradata/spikey' for database must include %f or %U format

Recovery Manager complete.

Don't know how it worked for Levi without %f or %U. So, I added %f

 $ vi restore.txt
 $ cat restore.txt
run
 {
 SET NEWNAME FOR DATABASE TO '/fnup/hwrc/oradata/spikey/%f';
 restore database  ;
 }


 $ rman target / cmdfile=restore.txt

Recovery Manager: Release 11.2.0.3.0 - Production on Thu Jul 26 04:45:45 2012

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database: SPIKEY (DBID=2576163333, not open)

RMAN> run
2>  {
3>  SET NEWNAME FOR DATABASE TO '/fnup/hwrc/oradata/spikey/%f';
4>  restore database  ;
5>  }
6>
7>
8>
executing command: SET NEWNAME

Starting restore at 26-JUL-12
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=19 device type=DISK

channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00001 to /fnup/hwrc/oradata/spikey/1
channel ORA_DISK_1: restoring datafile 00002 to /fnup/hwrc/oradata/spikey/2
channel ORA_DISK_1: restoring datafile 00003 to /fnup/hwrc/oradata/spikey/3
channel ORA_DISK_1: restoring datafile 00004 to /fnup/hwrc/oradata/spikey/4
channel ORA_DISK_1: restoring datafile 00005 to /fnup/hwrc/oradata/spikey/5
channel ORA_DISK_1: restoring datafile 00006 to /fnup/hwrc/oradata/spikey/6
channel ORA_DISK_1: restoring datafile 00007 to /fnup/hwrc/oradata/spikey/7
channel ORA_DISK_1: restoring datafile 00008 to /fnup/hwrc/oradata/spikey/8
channel ORA_DISK_1: restoring datafile 00009 to /fnup/hwrc/oradata/spikey/9
channel ORA_DISK_1: reading from backup piece /u07/bkpfolder/SPIKEY_full_01nh0028_1_1_20120725.rmbk
channel ORA_DISK_1: errors found reading piece handle=/u07/bkpfolder/SPIKEY_full_01nh0028_1_1_20120725.rmbk
channel ORA_DISK_1: failover to piece handle=/u07/dump/bkpfolder/SPIKEY_full_01nh0028_1_1_20120725.rmbk tag=SPIKEY_FULL
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:01:56
Finished restore at 26-JUL-12

Recovery Manager complete.

As you can see, RMAN restore data files to the desired location. But the data file names ended up as

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -----------| Holy Cow |-----------------------------

So I had to rename each file as below

$ mv 1 /fnup/hwrc/oradata/spikey/system01.dbf
$ mv 2 /fnup/hwrc/oradata/spikey/sysaux01.dbf
$ mv 3 /fnup/hwrc/oradata/spikey/undotbs01.dbf

I would have been better in execution of the order for each data below file

SET NEWNAME FOR DATAFILE

Now, I think, there is no advantage in using NEWNAME SET of DATABASE to. Only the disadvantages. I did anything wrong above?

Martin;

On the issue of the VALUE of NEWNAME FOR DATABASE, you must specify at least one of the first three of the following substitution variables to avoid collisions of names: %b f % U. see semantic entry for TO 'filename' for a description of the possible substitution variables.

You use %f

%b

Specifies the filename without the fully qualified directory path. For example, the datafile name /oradata/prod/financial.dbf is transformed to financial.dbf. This variable enables you to preserve the names of the datafiles while you move them to different directory. During backup, it can be used for the creation of image copies. The variable cannot be used for OMF datafiles or backup sets.

%f

Specifies the absolute file number of the datafile for which the new name is generated. For example, if datafile 2 is duplicated, then %f generates the value 2.

%U

Specifies a system-generated unique filename. The name is in the following format: data-D-%d_id-%I_TS-%N_FNO-%f. The %d variable specifies the database name. For example, a possible name might be data-D-prod_id-22398754_TS-users_FNO-7.

Source - E10643-01

Backup and recovery reference

http://docs.Oracle.com/CD/E14072_01/backup.112/e10643/rcmsynta2014.htm

I see CKPT and I agree on that!

Best regards

mseberg

How to recover the data file in Oralcle 10 g...? No backups and no newspaper archiving
All,

I need to recover the data file 2, which is for the undo tablespace and it is in the State to recover and I need to recover the data files now.

But the bad news is we have no backup at all and we have no archive logs (log archiving is disabled in the database)...

In this case how can I recover the data file...?

SQL > select a.file #, b.SID, a.status from v$ datafile a, v$ tablespace b where a.ts #= b.ts #;

FILE NAME STATUS NO.
---------- ------------------------------------------------------------------------------------------ -------
1 /export/home/oracle/flexcube/product/10.2.0/db_1/oradata/bwfcc73/system01.dbf SYSTEM
* RETRIEVE /export/home/oracle/logs/bw/undotbs01.dbf 2 *.
3 /export/home/oracle/flexcube/product/10.2.0/db_1/oradata/bwfcc73/sysaux01.dbf online
4 /export/home/oracle/datafiles/bw/bwfcc73.dbf online
5 /export/home/oracle/datafiles/bw/bwfcc73_01.dbf online

SQL > archive logs list;
Database log mode no Archive Mode
Automatic archival disabled
Destination of archive USE_DB_RECOVERY_FILE_DEST
Sequence of journal online oldest 4940
Current log sequence 4942
Hello

First, you must open a ticket with oracle Support and explore the options

You can use this note to fix:
RECOVERY OF A LOST IN A [ID 1013221.6] UNDO TABLESPACE DATA FILE

If you are unable to drop Undo tablespace as Undo Segment recovery must

You can download the trace file following the opening of the ticket
```
SQL>Alter session set tracefile_identifier='corrupt';

SQL>Alter system dump undo header "";

Go to udump

ls -lrt *corrupt*

Upload this trace file

Also upload the alert log file
```
Kind regards
Levi Pereira

Published by: Levi Pereira on November 29, 2011 13:58

manually removed some of the data files.
There was a problem in AIX server with regard to space, he I manually deleted some of the files of the server.now data I can solve or stop, or restart the database.

ORA-01116: error opening the file base of 41
ORA-01110: data file 41: ' / data2/oradata/PULSEU02/pulse_st_idx_hgh_002.dbf'
ORA-27041: could not open the file
IBM AIX RISC System/6000 error: 2: no such file or directory

How can I solve this problem. There is no backup because it was such a performance so dev server.
sunnymoon wrote:
It is one of the data files that other two data files are data... IAM fine with data loss, but how can I save the one remaining.

Follow the steps below: -.

The judgment 1).

2.) sys/xxx sqlplus as sysdba

Mounting database Alter 3.)

4.) alter drop offline database datafile '';

5.) Alter database open

HTH

-Vishwanath

Restore the data file
Hello

Initial situation and config:

Server: Win2k3 Sp1 32 bit
Database: 10.2.0.4 Standard noarchivelog mode
RMAN catalog on different server.
Cold backup

Therefore, I was invited to do a restore from a backup of database. What he needs, it's to restore the controlfile, spfile and a data from a backup file complete performed via RMAN. He does NOT INTEND to use them, they just want to see their restored from the backup.

Restore the spfile and the controlfile is not a problem, and I was able to restore them to a Test directory. But since I can't restore datafile 1 to 'C:\dest', I googled how to make these.

I came up with these, which I think who should restore a data file to a different location, but I don't know if it's okay. And since I started on the database server, I prefer to ask first.

The value of newname to 'C:\datafiles\datafile1.dbf' to 'C:\Test\datafile1.dbf ';
restore the data file 'C:\Test\datafile1.dbf '.

Would this work? It must be run with the open database altering State and work and will not somehow it. If not, can someone help me here? The only thing needed, he did restore a data file just to get...

Thanks for the tips!
Add this

RMAN > run {}
value of newname for datafile 'C:\datafiles\datafile1.dbf' to 'C:\Test\datafile1.dbf ';
restore the data file ' C:\Test\datafile1.dbf';l
switch datafile;
}

It will update the control file with the new location of this data file

XTTS - problem by copying the data file in ASM
I test the migration of database from AIX to Linux using the cross-platform transportable tablespaces.
DB version: source: 10.2.0.4
Destination: 10.2.0.5
OS version: source: AIX6.1 - AIX - Based Systems (64-bit)
Destination: RedHat Linux - Linux x 86 64-bit

I have run the commands before copying the file data to destination below.
```
EXECUTE DBMS_TTS.TRANSPORT_SET_CHECK('TBLSP1,TBLSP2', TRUE);

SELECT * FROM TRANSPORT_SET_VIOLATIONS;

no rows selected

alter system archive log current;

alter tablespace TBLSP1 read only;

alter tablespace TBLSP2 read only;

expdp DUMPFILE=xtts_exp.dmp DIRECTORY=DUMP_DIR logfile=xtts_exp.log TRANSPORT_TABLESPACES=TBLSP1,TBLSP2

CONVERT TABLESPACE TBLSP1,TBLSP2 
TO PLATFORM 'Linux x86 64-bit'
FORMAT '/dataimport/%U';
```
/DataImport is a shared file system mounted on Linux server and am able to see the file of data out there. But receive the error below to try to copy the data file on the linux server. Could someone let me know if I missed something / how to fix this error.
```
$rman target /

RMAN> copy datafile '/dataimport/data_D-DBMGRT_I-3320277811_TS-TBLSP1_FNO-26_05m8miia' to '+DATA';
Starting backup at 05-APR-11
using channel ORA_DISK_1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 04/05/2011 10:19:44
RMAN-20201: datafile not found in the recovery catalog
RMAN-06010: error while looking up datafile: /dataimport/data_D-DBMGRT_I-3320277811_TS-TBLSP1_FNO-26_05m8miia
```
To be honest, I don't really see what you have done in the op, so I can't really comment on. I see you have an export of the TTS, but that's all.

If you have followed all the list I mentioned (you did write the TTS reading?), then you can try to save the file with RMAN, but I suspect that it does not work. Do you get the error even if you move the shared location (/ donneesimporter) to a local directory on the target area? Maybe he doesn't like the fact that it's a NFS mount (or whatever the proportion is).

Or maybe it's because you going to 10.2.0.4 10.2.0.5. I have always had the same group of patches and updated once I had plugged the tablespaces on the target database.

A SCN for the entire database and the different SNA for the data files?
DB Version: 11 g

I always thought that there is a unique SCN for the database as a whole.
A quote from the link below as
When a control point is completed, Oracle stores the RCS individually in the control for each data file file
http://www.dbapool.com/articles/1029200701.html

What does that mean? There is a SNA for the entire database, and there are individual SCN for each data files?
Well, unfortunately, the article says more bad than good things. Or if I can't call them wrong, they are rather confusing and rather than clear things for the reader, its making them appear to look more confused.

First things, YVERT is used for read consistency (CR) mechanism and the backbone of the notion of Multiversioning. The control point is the mechanism to help that recovery is decided. Contrary to what said article, not any kind of checkpoints update both the data file and the control file, and also, there is not a type of them as well. In addition, the article says that the LAST_CHECKPOOINT is set to NULL, while its actually set to the infinity since it is not possible to detect the moment when the database is opened, that the last issue of control over the file would be. In the case of complete control point, this number is saved and is also associated with the toa Controlfile own database leader at the next startup. If this is not the case, there is an inconsistency in the stop_checkpoint of the data file and the stop_checkpoint reocrded in the control file, leading to a recovery of the instance.

There are several types of control points. Similarly, there are several types of SNA as well. Without going into the details of these, IMO, the article simply means that when the control point write over a file passes, oracle updates the file checkpoint on it and this is recorded in the Controlifle. as well.

HTH
Aman...

Open or convert the .dat files

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