I have following query
SELECT * FROM tabis_nov_events
AS OF TIMESTAMP
TO_TIMESTAMP('2014-08-19 10:30:00', 'YYYY-MM-DD HH:MI:SS')
Which selects the data but at some point gives error "snapshot too old. rollback segment number 5 with name '_SYSSMU5$' ". I want to retrieve data if possible otherwise just leave it. I tried with where clause like below to recover by chunk of primary key but gives me error every time when I use where clause like this:
SELECT * FROM tabis_nov_events
AS OF TIMESTAMP
TO_TIMESTAMP('2014-08-19 10:30:00', 'YYYY-MM-DD HH:MI:SS')
WHERE ta_eve_violation_num<'101100010'
Is there any way to achieve this?
Related
Good morning, during an execution of an SQL query in an Oracle database, perform an UPDATE without using the where and update an entire column unintentionally, now I want to retrieve it by rollback, the question is how to make an update to update my column current with which I am recovering.
To retrieve my column you are using the following query:
select CONTENT
from ACTION as of timestamp
to_timestamp('21-NOV-2019 11:30:00', 'DD-MON-YYYY HH24:MI:SS');
Now I want the response of this query to serve as an argument to update (UPDATE) the entire CONTENT column of my ACTION table; as it was at the time.
You can use simple update statement. I am considering that you only need to update the column value to the past value but all other data needs to be untouched.
Update action a
Set a.content = (select * from (select b.CONTENT from ACTION b
Where b.primarykey_colum = a.primarykey_colum) as of timestamp to_timestamp('21-NOV-2019 11:30:00', 'DD-MON-YYYY HH24:MI:SS'));
If you want to flashback entire table then use following:
FLASHBACK TABLE action
TO TIMESTAMP to_timestamp('21-NOV-2019 11:30:00', 'DD-MON-YYYY HH24:MI:SS');
Cheers!!
I have tried searches on Google and various other sites with no luck, even making the search terms as vague as possible.
I have a query with data across multiple days but I only want to select data that has the time between 21:45 and 22:45.
The temp table built with the whole data has the data column that was converted from to_date to to_char so changing it back to to_date or to_timestamp is necessary, I think.
The problem is I have tried both of those and get invalid month errors. For example to_date(complete_date, 'hh24:mi:ss') gives me the error.
I'm not sure how to filter for a timestamp interval without giving a hard coded date.
Many thanks in advance. I am using Oracle Sql and unfortunately I don't have the query at the moment. It's on the computer at work. If a reply comes and I am at work I can reply back with more information.
With details as (
select to_char(complete_date, 'yyyy-mm-dd hh24:mi:ss') complete_date,
to_char(complete_date, 'hh24:mi:ss') as ts from table
where complete_date between trunc(sysdate)-30 and trunc(sysdate) )
select * from details where ts between '21:45:00' and '22:45:00'
I was able to filter by timestamp by using:
Round(Extract(hour from to_timestamp(complete_date, 'yyyy-mm-dd hh24:mi:ss')) + (extract(minute from to_timestamp(complete_date, 'yyyy-mm-dd hh24:mi:ss'))/60),2) count_ts
Then filter for count_ts between 21.75 and 22.75. This will allow me to get any data between those times no matter the day.
Problem solved.
I have accdently deleted some rows in a table and did the commit too. Now
I want to recover them.
The DB I'm using is Oracle 11g R2.
I used the following query to get deleted records:
SELECT * FROM MY_TABLE AS OF TIMESTAMP ('13-MAR-11 8:50:58','DD-MON-YY HH24: MI: SS')
But while executing it gives an error saying:
Error at Command Line:3 Column:75
Error report:
SQL Error: ORA-00907: missing right parenthesis
00907. 00000 - "missing right parenthesis"
*Cause:
*Action:
But I couldn't figure the problem in this queury.
Can anyone pls help?
That requires an actual timestamp (or date), you're passing a pair of values.
Try:
SELECT * FROM MY_TABLE
AS OF TIMESTAMP TO_DATE('13-MAR-11 08:50:58','DD-MON-YY HH24:MI:SS')
(Your time format specifier isn't correct either and doesn't match your date string.)
for example :
SELECT * FROM EMP AS OF TIMESTAMP
TO_TIMESTAMP('2005-04-04 09:30:00', 'YYYY-MM-DD HH:MI:SS')
WHERE name = 'JOHN';
But flashback query may fail with ORA-1555 , other option :
Logminer
if Oracle supplement log is enabled , you can get undo sql for your delete statement
-- switch again logfile to get a minimal redo activity alter system switch logfile;
-- mine the last written archived log
exec dbms_logmnr.add_logfile('archivelog/redologfile', options =>dbms_logmnr.new);
exec dbms_logmnr.start_logmnr(options => dbms_logmnr.dict_from_online_catalog);
select operation, sql_redo from v$logmnr_contents where seg_name = 'EMP';
Oracle PRM-DUL
PRM-DUL will be last option. Even deleted row piece in Oracle block is always just marked row flag with deleted mask, the row piece still can be read via scan Oracle data block . PRM-DUL can scan the whole table , find out every record/row piece marked deleted and write out to flat file.
I am reading data from remote oracle database with read only access. and I want to query all data between some time frame. I actually wanted to query between mid-night and current time. so the query I was using :
TO_DATE(to_char(sysdate, 'MM-dd-yyyy')||'00:00:00','MM-dd-yyyy HH24:MI:SS' )
AND
TO_DATE(to_char(sysdate, 'MM-dd-yyyy HH24:MI:SS'),'MM-dd-yyyy HH24:MI:SS' )
But the query
select TO_DATE(to_char(sysdate, 'MM-dd-yyyy HH24:MI:SS'),'MM-dd-yyyy HH24:MI:SS' ) from dual
is returning only 18-APR-12 not the time. How do I get time too?
I am running :
ALTER SESSION SET NLS_DATE_FORMAT='DD-MON-YYYY HH24:MI:SS';
But I don't want to run this everytime any other way to overcome this problem?
What you see is not what is really there.
Oracle holds the date as a number represanting the date and the way you see it when you query it depends on your NLS parameters.
The fact that you don't see the time doesn't mean there is no time.
as for your query I'd do something like this:
... BETWEEN trunc(sysdate) AND sysdate
I see no use in casting a Date to a string and then back to a Date with the same format ...
I'm reading a pipe delimited file with SQL Loader and want to populate a LAST_UPDATED field in the table I am populating. My Control File looks like this:
LOAD DATA
INFILE SampleFile.dat
REPLACE
INTO TABLE contact
FIELDS TERMINATED BY '|'
OPTIONALLY ENCLOSED BY '"'
(
ID,
FIRST_NAME,
LAST_NAME,
EMAIL,
DEPARTMENT_ID,
LAST_UPDATED SYSTIMESTAMP
)
For the LAST_UPDATED field I've tried SYSTIMESTAMP and CURRENT_TIMESTAMP and neither work. SYSDATE however works fine but doesn't give me the time of day.
I am brand new to SQL Loader so I really know very little about what it is or isn't capable of. Thanks.
Have you tried the following:
CURRENT_TIMESTAMP [ (precision) ]
select current_timestamp(3) from dual;
CURRENT_TIMESTAMP(3)
-----------------------------
10-JUL-04 19.11.12.686 +01:00
To do this in SQLLDR, you will need to use EXPRESSION in the CTL file so that SQLLDR knows to treat the call as SQL.
Replace:
LAST_UPDATED SYSTIMESTAMP
with:
LAST_UPDATED EXPRESSION "current_timestamp(3)"
I accepted RC's answer because ultimately he answered what I was asking but my unfamiliarity with some of Oracle's tools led me to make this more difficult than it needed to be.
I was trying to get SQL*Loader to record a timestamp instead of just a date. When I used SYSDATE, and then did a select on the table it was only listing the the date (05-AUG-09).
Then, I tried RC's method (in the comments) and it worked. However, still, when I did a select on the table I got the same date format. Then it occurred to me it could just be truncating the remainder for display purposes. So then I did a:
select TO_CHAR(LAST_UPDATED,'MMDDYYYY:HH24:MI:SS') from contact;
And it then displayed everything. Then I went back to the control file and changed it back to SYSDATE and ran the same query and sure enough, the HH:MI:SS was there and accurate.
This is all being done in SqlDeveloper. I don't know why it defaults to this behavior. Also what threw me off are the following two statements in sqldeveloper.
SELECT CURRENT_TIMESTAMP FROM DUAL; //returns a full date and time
SELECT SYSDATE FROM DUAL; // returns only a date
If you want to use the table defined default you can use:
ROWDATE EXPRESSION "DEFAULT"
In Sql Developer run:
ALTER SESSION SET NLS_DATE_FORMAT='YYYY-MM-DD HH24:MI:SS'
and then check it with
SELECT SYSDATE FROM DUAL