Read the Oracle Documentation or http://otn.oracle.com or
http://metalink.oracle.com
on what a RowID is. It is actually a composite of
File_Number_in_Database + Block_Number_in_File + Row_Number_within_Block.
Since a Table is like a heap rows may be inserted by Oracle in any of the
available
Title: RE: alter table rename error
HI ALL..
I HAVE PROBLEM
THE ROWID FIELD IS NOT SORTED IN MY DATABASE
WITH THE INSERTION DATA..
I INSERT THE TIME WITH EVERY RECORD
AND WHEN SELECT FROM THE TABLE WITH ORDER BY ROWID
I GET RANDOM TIMES IN TIME FIELD !!!
THAT HAPPEND WITH ME IN ONE TABLE
To: Multiple recipients of list ORACLE-L
Sent: Sunday, January 25, 2004 10:19
AM
Subject: ROWID PROBLEM
HI ALL..
I HAVE PROBLEM
THE ROWID FIELD IS NOT SORTED IN MY
DATABASE WITH THE INSERTION DATA..
I INSERT THE TIME WITH EVERY RECORD
AND WHEN SELECT FROM THE TABLE
.
Jared
On Sun, 2004-01-25 at 07:19, Waleed Haggagy wrote:
HI ALL..
I HAVE PROBLEM
THE ROWID FIELD IS NOT SORTED IN MY DATABASE WITH THE INSERTION
DATA..
I INSERT THE TIME WITH EVERY RECORD
AND WHEN SELECT FROM THE TABLE WITH ORDER BY ROWID I GET RANDOM TIMES
IN TIME FIELD
Title: RE: alter table rename error
Maybe the problem is with your capital
letters?!
Tanel.
- Original Message -
From:
Waleed
Haggagy
To: Multiple recipients of list ORACLE-L
Sent: Sunday, January 25, 2004 5:19
PM
Subject: ROWID PROBLEM
HI ALL..
I
All Views expressed in this email
are strictly personal. QOTD: Any clod
can have facts, having an opinion is an art !
-Original Message-From: Tanel Poder
[mailto:[EMAIL PROTECTED]Sent: Sunday, January 25, 2004 5:55
PMTo: Multiple recipients of list ORACLE-LSubject: Re:
ROWID
Hi All,
I am facing one problem explained below:
Our application is using a trigger on view a based on some table b.
IF :new.IND = 'Y' THEN
UPDATE b set
IND = NVL(RTRIM(:new.DIND),' ')
WHERE ROWID = :old.OROWID
Title: RE: invalid ROWID
use PK ... rowid is not reliable in views ...
-Original Message-
From: ManojKr Jha [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 17, 2003 11:00 AM
To: Multiple recipients of list ORACLE-L
Subject: invalid ROWID
Hi All,
I am facing one problem
on view a based on some table b.
IF :new.IND = 'Y' THEN
UPDATE b set
IND = NVL(RTRIM(:new.DIND),' ')
WHERE ROWID = :old.OROWID;
END IF;
Apllication is trying to update view, nad thus triiger consist
:
Sent by: Subject: Re: invalid ROWID
[EMAIL PROTECTED
If OROWID is a column, the
WHERE ROWID = :old.OROWID; would certainly fail.
If OROWID is expected to be of type ROWID, check the View definition.
Are you really getting the right rowid ?
Hemant
At 07:59 AM 17-09-03 -0800, you wrote:
OROWID is column of view a based on table b.
With Regards
hi all,
how to identify or list table dublicates just using rowid
?
Regards,Salaheldin
Aboali---Senior Software
Developer Management Information Systemshttp://www.mis-kuwait.comPhone:+965.240.64.25+965.240.67.98+965.240.80.92Ext.
235Fax
Hi from old post ,
following metalink documents may help you.
Note:65080.1 Using SQL To Delete Duplicate Rows In A Table
PR:1015631.6 HOW TO SELECT DUPLICATE ROWS WITHOUT USING ROWID
PR:1004425.6 HOW TO FIND OR DELETE DUPLICATE ROWS IN TABLE.
Tekram Aboali.
--
Please see
Hi Salah ,
This is a sample query on
how to identify the duplicate rows :
Select FROM tablename
WHERE rowid
not in (SELECT MIN(rowid)
FROM tablename
GROUP BY column1, column2, column3...);
Hope it helps
',SYSDATE,Misc.GetDefaultErKey('0001','000-3'))
8 RETURNING ROWIDTOCHAR(ROWID) INTO cRow;
9 end;
10 end;
11 /
begin
*
ERROR at line 1:
ORA-03113: end-of-file on communication channel
SQL connect canadian_575/sql@paristest
Connected.
Thanks for any help ...
Sam Bootsma, OCP
Technical
RETURNING ROWIDTOCHAR(ROWID) INTO cRow;
9 end;
HTH,
Sony
-Original Message-
From: Sam Bootsma [SMTP:[EMAIL PROTECTED]]
Sent: Thursday, February 13, 2003 1:34 AM
To: Multiple recipients of list ORACLE-L
Subject: INSERT ... RETURNING ROWIDTOCHAR(ROWID
is15-20 times the number of
records in M.
one way to
join the two tables is to say M.emp_id = P.emp_id. but because P has high number
of records the select is slower.
we
foundthat select of a row fromtable"P"
using "rowid" columnwas veryQUICK.
Is it a Correct pract
Title: Message
Not a
good idea to store rowid in table M. If you ever move table P to a
different tablespace
or
within the same tablespace, all it's rowid would change.
Richard Ji
-Original Message-From: VIVEK_SHARMA
[mailto:[EMAIL PROTECTED]]Sent: Friday, December 27, 2002
found that select of a row from table P using
rowid column was=0D
very QUICK . =0D
=0D
Is it a Correct practice :-=0D
=0D
1) to Store the ROWID of Table P in M in a separate
column (say=0D
P_rowid)=0D
=0D
2) Is it possible to do a Join like the follows :-
=0D
=0D
select field1, field2,... from M
You can use the rowid but do not keep it.
As a dev DBA I would not allow to store the rowid in a
table because its value is meaningless once you
export/import, ...
--- VIVEK_SHARMA [EMAIL PROTECTED] a écrit :
let us suppose there are two tables M and P.
both Contain the field emp_id. other
Developers can also use the approach that Oracle uses with
UROWID values, which are stored in secondary indexes on IOTs
(i.e. replacing ROWIDs used in normal indexes).
Store the ROWID as well as the PK/UK column values. Use the
following algorithm to retrieve in future:
1. Retrieve the PK/UK
Title: RE: ROWID in statement trigger
-Original Message-
From: Connor McDonald [mailto:[EMAIL PROTECTED]]
have a package type as a plsql table of rowid
statement-before:
plsql_table.delete;
row-after:
plsql_table(plsql_table.count+1) := :new.rowid;
statement-after
the rows being updated in a
before update statement trigger, without using row
level trigger ?
We tried to use the before update row level trigger to get the rowid of the
updated rows .
We observed that the statement level trigger is fired before row level
trigger.
As a result , we could not get
Title: ROWID question?
Thanks
for everyones input!
-Original Message-From: Denham Eva
[mailto:[EMAIL PROTECTED]]Sent: Tuesday, October 22, 2002 4:49
PMTo: Multiple recipients of list ORACLE-LSubject: ROWID
question?
Hello Gurus
Does Oracle reuse ROWID "numbers&q
Hello,
How to get the ROWID of the rows being updated in an
After update statement trigger ?
Thanks in advance,
Deepa
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Sent: Tuesday, October 22, 2002 1:54 PM
To: Multiple recipients of list ORACLE-L
Hello,
How to get the ROWID of the rows being updated in an
After update statement trigger ?
Thanks in advance,
Deepa
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have a package type as a plsql table of rowid
statement-before:
plsql_table.delete;
row-after:
plsql_table(plsql_table.count+1) := :new.rowid;
statement-after:
for i in 1 .. plsql_table.count loop
play with rowids
end loop;
hth
connor
--- [EMAIL PROTECTED] wrote:
Hello,
How
Title: ROWID question?
Hello Gurus
Does Oracle reuse ROWID numbers, once a delete of a row has been done?
The reason I ask is because, I need to delete duplicate records from a very large table.
However I must keep the newest date in one of the date columns.
If oracle does not reuse
Title: ROWID question?
If you have timestamp-type column (let's call it
"date_column") and what to keep the record with the newest date, then you should
use this column in your DELETE statement (instead of ROWID):
DELETE FROM tablename a WHERE date_column (SELECT MAX(b.d
Hi,
Space is reused therefore ROWID are reused. You can certainly modify your
delete duplicate routine for special cases to include record must
have max date.
Rick
Title: ROWID question?
The
script you are using will achieve your goal. It's a pretty common one to remove
dups.
ROWIDs
will be reused once Oracle reinserts a row into the 'hole'. However, for the
duration of the transaction, this will not be the case. Since the transaction
could
issues of its
own.
Also, the comments about replacing rowid with the date column are very
valid - There is no way to guarantee that the row with the newest date has
a larger rowid. I always believe you should treat rowid's as a magical
number - they are fine for referring to directly, but not things
Title: RE: ROWID question?
Yes, Oracle can re-use a rowid.
-Original Message-
From: Mark Richard [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 22, 2002 4:39 PM
To: Multiple recipients of list ORACLE-L
Subject: Re: ROWID question?
Denham,
At the risk of going slightly off
How to identify the rows being updated in a
before update statement trigger, without using row
level trigger ?
We tried to use the before update row level trigger to get the rowid of the
updated rows .
We observed that the statement level trigger is fired before row level
trigger.
As a result
When the row is moved to another block.
Yechiel Adar
Mehish
- Original Message -
To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED]
Sent: Thursday, September 12, 2002 5:28 AM
what are the cases for a rowid to be changed ?
Regards,
Prakash.
--
Please see
Actually, the rowid will not change when a row is migrated. The original
rowid is preserved (for indexing purposes) with a pointer to the new row.
The rowid referenced by functions will be the original rowid.
I performed a test about a year ago that covered this scenario. I found that
when you
Mercadante
Oracle Certified Professional
-Original Message-
Sent: Thursday, September 12, 2002 12:48 PM
To: Multiple recipients of list ORACLE-L
Actually, the rowid will not change when a row is migrated. The original
rowid is preserved (for indexing purposes) with a pointer to the new row
, or performed because of an
Alter Table {} Move Tablespace command.
Tom Mercadante
Oracle Certified Professional
-Original Message-
Sent: Thursday, September 12, 2002 12:48 PM
To: Multiple recipients of list ORACLE-L
Actually, the rowid will not change when a row is migrated. The original
rowid
Actually, if a row is migrated it keeps the same ROWID it has before the
update.
HTH
DC
- Original Message -
To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED]
Sent: Thursday, September 12, 2002 3:03 PM
Dan,
I think there is a difference between migrated and moved
what are the cases for a rowid to be changed ?
Regards,
Prakash.
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INET: [EMAIL PROTECTED]
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San Diego, California-- Public Internet
Another thing that I recall, if I am correct, the freed ROWIDs (after
deleting rows) are assigned to newly inserted rows.
Aleem
-Original Message-
Sent: Thursday, February 21, 2002 11:18 PM
To: Multiple recipients of list ORACLE-L
Subject:ROWID datatype columns
Can someone explain to me why some developers like to create ROWID datatype
columns in their tables?
I am wondering why they sometimes do that instead of using primary keys.
I searched for info on this on the Web, but nothing.
ROWID access is probably faster than index access, I guess.
I
of list ORACLE-L
Can someone explain to me why some developers like to create ROWID datatype
columns in their tables?
I am wondering why they sometimes do that instead of using primary keys.
I searched for info on this on the Web, but nothing.
ROWID access is probably faster than index access, I
Oracle changed the ROWID size between Oracle7 and Oracle8. It went from 6 bytes to 10
bytes. So if a developer wrote code that only sized the ROWID to 6 bytes, it's
probably not going to work when converted to Oracle8 or 9.
Jerry Whittle
ACIFICS DBA
NCI Information Systems Inc.
[EMAIL
I am sure someone has a reason for creating a column with a ROWID datatype
but I cannot think of it. Every row has a ROWID column anyway so why
create another one. That column would have to be kept update on almost any
kind of DDL performed on that table. I cannot imagine populating
that field
ROWID's have their place. My preference is that they are used in PL/SQL
or other code as a means of quickly locating or relocating a row in a
table.
Using them procedurally at runtime is generally considered a valid use
of ROWID data types.
Storing ROWID data is generally considered a bad
Patrice,
The only reason I can think of creating a column with a datatype of ROWID,
is in order to store a rowid. Why you need to store the rowid escapes me
as the rowid is available as a pseudocolumn anyway.
It is also dangerous to store this rowid in a column, as it can change.
During
A rowid column can be put to very good use in transitional tables for batch
processing or temporary tables. For example, check out the CHAINED_ROWS
table that Oracle creates via the utlchain.sql script. I've seen this
technique in the commercial Banner Utilities application from SCT. It may
Hi guys,
Beside using DBMS_ROWID.* is that a way (formula) to convert the base-64
encoding to normal decimal format ?
Thanks
Sinardy
Happy CNY
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