How to solve this problem "ORA-01466: Unable to read data -- Table definiti
Hi,
I had deleted the entry and i want back now and in between i done the following
alter table pv_head enable constraint FK_PV_HED__CRF_HEDwhen i try in the following one
SELECT * FROM PV_HEAD AS OF TIMESTAMP TO_DATE('28-FEB-2011 9:45:00','DD-MON-YYYY HH24:MI:SS')
WHERE PV_NO IN (703705,703704) the error i am receiving
ORA-01466: Unable to read data -- Table definition has changed how to solve this issue.
please guide me.
Kanish
You can not perform DDL and then perform a flashback query to before the DDL.
One might wonder why you chose this particular time to perform an ALTER TABLE but you did. It is what it is.
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Ora-01466 unable to read data table definition has changed oracle.
hi all,
i truncated a table before 10 min. now i want the data's so i used this query ;
select *
from ( select *
from sometable where some_condition )
as of timestamp sysdate-1;
but it shows:
""" ora-01466 unable to read data table definition has changed oracle"""";
how to get the deleted records from database????????????
Edited by: 887268 on Oct 24, 2011 4:02 AMError: ORA 1466
Text: unable to read data -- object definition has changed
Cause: This is a time-based read consistency error for a database object,
such as a table or index.
Either of the following may have happened:
The query was parsed and executed with a snapshot older than the time
the object was changed.
The creation time-stamp of the object is greater than the current
system time.
This happens, for example, when the system time is set to a time
earlier than the creation time of the object.
Action: If the cause is
an old snapshot, then commit or rollback the transaction and resume
work.
a creation time-stamp in the future, ensure the system time is set
correctly.
If the object creation time-stamp is still greater than the system
time, then export the object's data, drop the object, recreate the
object so it has a new creation time-stamp, import the object's data,
and resume work. -
ORA-01466: unable to read data - table definition has changed
During Exp we face the subjected error for few tables. and exp compeletes with warnings.No table has creation date greater than the sysdate, and fixed_date parameter is also not set.
Oracle version 9.2.0.8 on AIX 5.2
Can any body comment out to solve the issue.
thanks in advance...extract from Oracle docs -
Specifies whether or not Export uses the SET TRANSACTION READ ONLY statement to ensure that the data seen by Export is consistent to a single point in time and does not change during the execution of the exp command. You should specify CONSISTENT=y when you anticipate that other applications will be updating the target data after an export has started.
If you use CONSISTENT=n, each table is usually exported in a single transaction. However, if a table contains nested tables, the outer table and each inner table are exported as separate transactions. If a table is partitioned, each partition is exported as a separate transaction.
Therefore, if nested tables and partitioned tables are being updated by other applications, the data that is exported could be inconsistent. To minimize this possibility, export those tables at a time when updates are not being done.
http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14215/exp_imp.htm -
Deleted Rows Flashback : unable to read data - table definition has changed
Hi All,
Its Really Important.
I Unfortunately truncated a table using
Trancate table mytable;
and Made a alter table to decrease data pricision length.
But i Need the tabla data back,
i used the below command to get deleted rows, it shows error.
query : select * from pol_tot versions between timestamp systimestamp-1 and systimestamp;
error : ORA-01466: unable to read data - table definition has changed
query : flashback table pol_tot to timestamp systimestamp - interval '45' minute;
error : ORA-01466: unable to read data - table definition has changed
Kindly Share your ideas How Can i Get thoose Deleted Records.
Edited by: 887268 on Jul 8, 2012 12:26 AMBluShadow wrote:
Khayyam wrote:
Flashback dont works after DDL. Truncate command is DDL. Only recover from backup can help.Please don't spread untrue statements.Working of flashback after Drop command is so clear to say. I mean such DDL commands as CREATE, ALTER, TRUNCATE and so on...
"Remember that DDLs that alter the structure of a table (such as drop/modify column, move table, drop partition, truncate table/partition, and add constraint) invalidate any existing undo data for the table. If you try to retrieve data from a time before such a DDL executed, you will get error ORA-1466. DDL operations that alter the storage attributes of a table (such as PCTFREE, INITRANS, and MAXTRANS) do not invalidate undo data."
[http://docs.oracle.com/cd/B28359_01/appdev.111/b28424/adfns_flashback.htm#BJFJHDAG] -
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