Flashback query is working fine for dropped table,but throwing error when trying to get back the previous date by dropping a column from a table.
FLASHBACK TABLE emp TO TIMESTAMP TO_TIMESTAMP('2013-07-13 05:00:00', 'YYYY-MM-DD HH24:MI:SS')
SQL Error: ORA-01466: unable to read data - table definition has changed
Is that a limitation of Oracle by not having query to flashback a column but a table.
Can we find out no of undo segments in undo Table space ? If so , how to find? what's their max limit ?
View 9 Replies View RelatedI am trying to delete the partition, but I am getting error "ORA-01426: numeric overflow"
The original partitioning was:
TABLE_NAME PARTITION_NAME NUM_ROWS
F_TFP_CP_MONTH P_201108 0
F_TFP_CP_MONTH P_201201 (NULL)
F_TFP_CP_MONTH P_201202 (NULL)
F_TFP_CP_MONTH P_99999999 (NULL)
F_TFP_CP_MONTH P_201106 1159130358
F_TFP_CP_MONTH P_201105 0
F_TFP_CP_MONTH P_201104 1212566971
F_TFP_CP_MONTH P_201103 1002557990
F_TFP_CP_MONTH P_201102 0
F_TFP_CP_MONTH P_201101 0
F_TFP_CP_MONTH P_201012 0
F_TFP_CP_MONTH P_201011 0
F_TFP_CP_MONTH P_201010 0
F_TFP_CP_MONTH P_201009 0
F_TFP_CP_MONTH P_201112 (NULL)
F_TFP_CP_MONTH P_201111 (NULL)
F_TFP_CP_MONTH P_201110 (NULL)
F_TFP_CP_MONTH P_201109 (NULL)
F_TFP_CP_MONTH P_201107 1627218307
All partitions were dropped, but three; these three returned the same error when trying to drop them:
SQL> alter table dw.F_TFP_CP_MONTH drop partition P_201112;
alter table dw.F_TFP_CP_MONTH drop partition P_201112
*
ERROR at line 1:
ORA-01426: numeric overflow
SQL> alter table dw.F_TFP_CP_MONTH drop partition P_201111;
alter table dw.F_TFP_CP_MONTH drop partition P_201111
*
ERROR at line 1:
ORA-01426: numeric overflow
SQL> alter table dw.F_TFP_CP_MONTH drop partition P_201110;
alter table dw.F_TFP_CP_MONTH drop partition P_201110
*
ERROR at line 1:
ORA-01426: numeric overflow
So, the situation now is that the table only has these three partitions, and we are not able to empty the table, so that we can later purge it and recover the
space.
free that space and empty the contents of the table?
OS: AIX
DB: 11G
I need to recover a dropped table, I have a RMAN backup of midnight and the table was dropped at 7:00 PM today. I do not have flash back enabled on the database. I am thinking of restoring midnight backup and applying the archives just before the table was dropped and opening the database in resetlogs method.
regarding sizing undo tablespace and undo_retention parameter.we have to implement the database in production system with 40 users but how much space should be allocated to undo tablespace is there any propotions related to virtual memory and the
parameter.i have gone thru oracle doc's and some related sites.its an ERP aplications that contains 20 modules .I am an new one to this dba level
can we recover a dropped table from database as well as recyclebin.
View 13 Replies View RelatedHow do I perform Undo a drop table operation?
View 12 Replies View RelatedIs it possible to restore dropped table OR wrongly updated table using RMAN backup.
View 18 Replies View RelatedI want to alter a very large table.
ALTER TABLE MYTABLE ADD
(
ENTRY_TSTMP DATE DEFAULT SYSDATE NOT NULL
)
My table is very large and I am getting an error saying I am out of undo space.
The dba says the undo space is as big as the table.
I am using Oracle 10.2.0.3. Since yesterday i am seeing a session with sid 1160 using undo tablespace but not able to find how much it is using .I need to know which session and from which module and how much is the Undo being used by those sessions. I have tried searching but all the queries provide me with some different results each time.
Also i need the same information for REDO being generated .
is it possible to view all user that was dropped? how can i know that one user was create by who>? i'm running on multi dba user in my db. are there any history record when we create user?
View 4 Replies View RelatedSome triggers are dropped and stored in recycle bin. when i am trying to restore it by the command
1* alter trigger "BIN$FFRO1R1LSuSIZ6uyLocD6g==$0" rename to WFNOTIFICATION_GEN_PK
SQL> /
alter trigger "BIN$FFRO1R1LSuSIZ6uyLocD6g==$0" rename to WFNOTIFICATION_GEN_PK
*
ERROR at line 1:
ORA-38301: can not perform DDL/DML over objects in Recycle Bin
One of the developer dropped 18 tables by mistake on USER@db schema. Developer asked whether I can restore those tables, but unfortunately they are not in the recycle bin. Developer is re-creating the table now though. But I am just curious whether we need to change these parameters (db_recycle_cache_size) in order support any similar requests in the future.
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_recycle_cache_size big integer 0
recyclebin string on
Is it possible to audit when a constraint is disabled, enabled or dropped? Sometimes I wonder why some constraints are missing. To make sure someone is dropping I would like to audit that action. Further, I would need to compare schemas to realize if some constraints are missing. As it names are generated automatically by oracle, how could I easily run a select to compare the constraints that does not match between schemas?
View 10 Replies View RelatedI had droped one user from my oracle database..but when i run this below query i found that user exist
SQL>select username from dba_users;
but when i try to connect that user i get result
SQL> connect sunil/sunil
ERROR:
ORA-01017: invalid username/password; logon denied
Now tell me how to remove this user from result of this query
SQL>select username from dba_users;
Is there a way to restore the schema and its associated objects once it is dropped?
1. The flash back database feature is not ON in the database where schema was dropped.
2. The data files/ table space has not been dropped
3. There was no export taken for the schema.
We have scheduled many email alerts for management, these were running fine but from three days, we are facing problem.
We received following Error during sending email from Database.
ORA-29279: SMTP permanent error: 550 "Dropped spammer pretending to be us"
After a power failure, I have now dropped disks in my 2 diskgroups DG_RACDATA1 and OCRVD.
Disks has been renamed and prefixed by DROPPED...
Their state is now "FORCING"
Mount status = missing
header status = unknown
Mode status = Offline
These disks was belonging to a failure group with redundancy so the cluster still works ...but I have lost the redundancy.
How to reuse these offline disk or confirm that what I plan to do is good:
Shall I put them online ? ALTER DISKGROUP DG_RACDATA1 ONLINE DISK DROPPED0000_DG_RACDATA1
Shall I drop them ? ALTER DISKGROUP DG_RACDATA1 DROP DISK DROPPED0000_DG_RACDATA1 FORCE
and then: zeroing them and readd to failgroup ? but how ?
i have two questions.
(1) how can i fill some value in a table column based on some existing column value automatically without user intervention. my actual problem is i have 'expiry date' column and 'status'. the 'status' column should get filled automatically based on the current system date. ex: if expiry date is '25-Apr-2011' and current date is '14-May-2011', then status should be filled as 'EXPIRED'
(2)hOw can i build 'select' query in a report (report 6i) so that it will show me list of items 'EXPIRED' or 'NOT EXPIRED' or both expired and not expired separately in a single report based on user choice. 'EXPIRED' & 'NOT EXPIRED' can be taken from the above question no. 1.
I am trying to update currency column of one table using the currency column of other table using the following sql code.
update ODS.SO_ITEM OSI
set CURRENCY__CODE=(select currency__code from sa_sales.SO_ITEM SSI where SSI.ID=OSI.ID)
This update is taking taking a lot of time and is never ending.
should i create index on source table (SA_SALES.SO_ITEM) or on target table (ODS.SO_ITEM) ?
How to find out how much undo will be generated by a dml / ddl statement in Oracle 9i? With Oracle 10g we can use the famous mystat.sql and mystat2.sql with argument as 'undo change vector size'.
However with Oracle 9i there is no statname as 'undo change vector size'
At a time my 20 GB undo tablespace was full. So i increased the tablespace size upto 48 GB. Then i saw 45 GB was used. Then i changed undo_retention=60. After that am seeing that 48 GB is full.
1) why it's happened?
2) Here what is the effect of undo_retention=60
3) How to resolve?.
Can an undo tablespace be too large and actually hurt performance? I have seen a system with a dedicated 1 TB drive for undo tablespace (no guarantee) with an undo_retention of 7 days. Would this hurt performance? What about setting an undo_retention of 24 hours with no guarantee? The only mention I could find online said that it would not hurt performance but I wanted to double check. You would think that Oracle does not care if it deletes the undo at 15 minutes or if it deletes the undo at a later date such as 7 days later and the performance should stay the same.
View 3 Replies View RelatedI am trying to drop 90 columns from a big partitioned table. I was trying a physical drop first and since it is taking longer time I decided make the columns unused state and drop them. However I was able to set them to unused state.
Now I am trying to drop those unused columns from the table, it is running since 22hours Apporox. I am keep increasing the undo tablespace to retain the undo data.
I also have decreased the undo_retention to 300 from 900.
My question is there any better way to drop these columns. And is there any way to flush out the data from undo.
S:Solaris
DB:10g
I am simulating a recovery of drop undo tablespace. for the same I have done the following things:
1. Dropped the only undo datafile from the os level while the database was open.
2. Then I created a table and inserted and updated some values in it and I was also allowed to commit.
When I am updating the rows of the table,the before images must have been written to UNDO but in my case there is no UNDO datafile.
Query to find out who is eating up most of the undo space and what query he is running..
View 3 Replies View RelatedDuring rollback phase of instance recovery, where is the undo applied from:
- redo logs
or
- undo generated during redo application in roll forward phase?
i Cannot drop old undo tablespace. While dropping the old undo tablespace we get an error
ERROR at line 1: ORA-01548: active rollback segment '_SYSSMU77$' found, terminate dropping tablespace
SQL> select tablespace_name, status, segment_name from dba_rollback_segs where status != 'OFFLINE';
TABLESPACE_NAME STATUS SEGMENT_NAME
------------------------------ ---------------- ------------------------------
SYSTEM ONLINE SYSTEM
APPS_UNDO NEEDS RECOVERY _SYSSMU77$
When i takeind export i got error like this..
ORA-39125: Worker unexpected fatal error in KUPW$WORKER.GET_TABLE_DATA_OBJECTS while calling DBMS_METADATA.FETCH_XML_CLOB [TABLE_DATA:"POS"."TBK_POS_FACT":"KROATL200404"]
ORA-01555: snapshot too old: rollback segment number 1 with name "_SYSSMU1$" too small"
from this can we increase the undo_retention value or undo tablespace size?
I'm an Oracle novice and from what I've read so far, it seems that you should be able to do rollbacks and data recovery using the redo logs. I'm having a difficulty understanding the need for the undo tablespace.
View 2 Replies View Related