Updating values with in the same table for other records matching conditions

Hi Experts,
Sorry for not providing the table structure(this is simple structure)
I have a requirement where i need to update the columns of a table based on values of the same table with some empid and date match. If the date and empid match then i have take these values from other record and update the one which is not having office details. I need the update query
Before update my table values are as below
Sort_num     Emp_id   office      start_date
1                      101     AUS    01/01/2013
2                      101                01/01/2013
3                      101               15/01/2013
4                      103     USA    05/01/2013
5                      103               01/01/2013
6                      103                05/01/2013
7                      104     FRA    10/01/2013
8                      104               10/01/2013
9                      104                01/01/2013
After update my table should be like below
Sort_num     Emp_id   office      start_date
1                      101     AUS    01/01/2013
2                      101     AUS    01/01/2013
3                      101               15/01/2013
4                      103     USA    05/01/2013
5                      103               01/01/2013
6                      103    USA     05/01/2013
7                      104     FRA    10/01/2013
8                      104     FRA     10/01/2013
9                      104                01/01/2013
Thanks in advance

I do not have time to create the table with data but basically you should be able to code the following
update table a
set office = ( select office from table b where b.emp_id = a.emp_id
and b.start_date = a.start_date
and b.office is not null
where exists ( [same query as in set] )
and a.office is null
I believe that will do the trick.
HTH -- Mark D Powell --

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Hi ,
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If you're on 11g, this can be simplified somewhat by using a compound trigger with separate before statement, row-level, and after statement sections.
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964188 wrote:
It is a date
Such as
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See the forum FAQ {message:id=9360002}

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Hi,
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user518071 wrote:
Hi,
I'm writing pl/sql code :
nvoice_id will be passed as parameter and based on invoice_id I need to see whether any records exist in history table.If not any then insert record into table.If more than one record exist then I need delete all except most recent one based hist_seq column in that table.
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Thanks,
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create procedure p_deal_with_invoice
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is
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into l_max_hist_seq
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Cheers,
Edited by: Tubby on Jun 18, 2012 2:53 PM

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Hello,
i have this select - i tested it and its working
[code]
select
case
when DTF_REEW_201301.KTMO =1 then DTF_REEW_201301.KTBT
else DTF_REEW_201301.KTBT - CTF_REEW_KUM_201301.KTBT
end
as KTBT_ISO,
case
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as KTZN_ISO,
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end as KTAB_ISO,
DTF_REEW_201301.brnrn,
DTF_REEW_201301.ktat
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reewcore.CTF_REEW_KUM_201301 CTF_REEW_KUM_201301,
reewdq.DTF_REEW_201301 DTF_REEW_201301
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(DTF_REEW_201301.BRNRN = CTF_REEW_KUM_201301.BRNRN
and DTF_REEW_201301.KTAT = CTF_REEW_KUM_201301.KTAT)
and CTF_REEW_KUM_201301.KTMO = (DTF_REEW_201301.KTMO - 1)
[/code]
With the result from KTBT_ISO, KTZN_ISO and KTAB_ISO i want to update the table "reewdq.DTF_REEW_201301" - and this table is in the select-statement!
I believe, i tried every update-statement - but no update is working.
I need something like this:
[code]
update reewdq.DTF_REEW_201301 t1 set t1.KTBT_ISO=
select
case
when DTF_REEW_201301.KTMO =1 then DTF_REEW_201301.KTBT
else DTF_REEW_201301.KTBT - CTF_REEW_KUM_201301.KTBT
end
as KTBT_ISO
   from
reewcore.CTF_REEW_KUM_201301 CTF_REEW_KUM_201301,
reewdq.DTF_REEW_201301 DTF_REEW_201301
   where
(DTF_REEW_201301.BRNRN = CTF_REEW_KUM_201301.BRNRN
and DTF_REEW_201301.KTAT = CTF_REEW_KUM_201301.KTAT)
and CTF_REEW_KUM_201301.KTMO = (DTF_REEW_201301.KTMO - 1)
t1.KTZN_ISO=
select
case
when DTF_REEW_201301.KTMO =1 then DTF_REEW_201301.KTZN
else DTF_REEW_201301.KTZN - CTF_REEW_KUM_201301.KTZN
end
as KTZN_ISO
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reewcore.CTF_REEW_KUM_201301 CTF_REEW_KUM_201301,
reewdq.DTF_REEW_201301 DTF_REEW_201301
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(DTF_REEW_201301.BRNRN = CTF_REEW_KUM_201301.BRNRN
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t1.KTAB_ISO=
select
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   from
reewcore.CTF_REEW_KUM_201301 CTF_REEW_KUM_201301,
reewdq.DTF_REEW_201301 DTF_REEW_201301
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(DTF_REEW_201301.BRNRN = CTF_REEW_KUM_201301.BRNRN
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[/code]
But this code isn´t working. Has someone an idea please? Can someone please help me.
Best regards
Heidi

Use MERGE:
merge
into reewdq.DTF_REEW_201301 t1
using (
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on (
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when mathed
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SY.

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Hi
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Hi,
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DB version: 11.2
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Is there anyway to rewrite this query or any other suggestions ?

Steve_74 wrote:
DB version: 11.2
We have a table called SHP_GC_TRACK which has around 8 million records with partitions . In the below UPDATE, it is updating a column based on the SELECT on the same table in a subquery.
UPDATE shp_gc_track a
SET f_tran_proc = 'Y'
WHERE last_update_date <
(SELECT MAX (last_update_date)
FROM shp_gc_track b
WHERE a.shp_trx_rowid = b.shp_trx_rowid
AND a.c_shp_inst = b.c_shp_inst
AND a.f_tran_proc = b.f_tran_proc
AND b.f_ltr_received = 'D'
AND f_rec_code IN ('G', 'W')
AND b.f_rec_status = 'B'
AND b.c_shp_inst = :b1
AND a.c_shp_inst = :b1
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We have a composite index on four columns f_ltr_received, f_rec_code, f_rec_status, f_tran_proc . Explain plan shows this composite index is being used.
Is there anyway to rewrite this query or any other suggestions ?Tuning updates with subqueries can be hard :(. Sadly my suggestions below are of the try-it-and-see-what-happens variety - nothing certain
First, check the index. Is it bitmap or b-tree? If b-tree see if the most restrictive columns are listed first - this can help with b-tree index efficiency. Also if b-tree a composite bitmap for columns with lots of repeating values instead might help
Its a correlated subquery so you can't just run the subquery first putting the result into a scalar varaiable and using the variable in the SQL instead. You can try putting the results of the subuqery w/join keys in a GTT first using the GTT in the SQL to see if I/O is reduced overall during both operations.
Do you have the licence for the parallel query option? Using parallel DML (this must be turned on manually) might help. Check the docs for the ALTER SESSION command to do this. Also, the PARALLEL_INDEX() hint might help
Post the execution plan of the SQL

Nsert/Update and Add Column at the same Table and at the "same" Time

Hello,
I want Insert/Update and Add Column at the same Table and at the "same" Time but in different sessions.
Example:
At first the "insert/update" statement:
Insert into TestTable (Testid,Value) values (1,5105);
After that the "add" statement:
Alter table TestTable add TestColumn number;
- sadly now I get the message: ORA-00054: resource busy and acquire with NOWAIT specified
"insert/update" statement:
Insert into TestTable (Testid,Value) values (2,1135);
After that the execute commit.
I don't know when the first session set the commit statement so I want that the DB the "Alter Table..." statement execute if it's possible.
If it's possible I want to save a repeat loop with the "Alter Table..." statemtent.
Thanks for ideas

Well I want to walk in the rain without and umbrella and still stay dry, but it ain't gonna happen.
You can't run a DDL statement against a table with transactions pending. Session 2 has to wait until session commits or rollbacks (or until the session is killed). That's just the way it is.
This makes sense if you think about it. The data dictionary has to be consistent across all sessions. If session 2 was allowed to change the table structure whilst session 1 has a pending transaction then the database is in an inconsistent state. This is easier to see if you consider the reverse situation - the ALTER TABLE statement run by session 2 does a DROP COLUMN TESTID rather than adding a column: now what should happen to session 1's INSERT statement? You have retrospectively invalidated a statement that was perfectly legal when it was executed.
If it's possible I want to save a repeat loop with the "Alter Table..." statemtent.Fnord.
Cheers, APC

For the same table in the same page, how to use 2 different forms (simple and tabular)?

Hello! How I can be on the same page with the same table insert and update operations using 2 different forms (single form and tabular form)
I have little knowledge of Apex, but I know PLSQL
Thanks
Ginger
Ecuador

Thank you Gramps. It took some time, but I've got it working now. I had to re-do all the user authentication actions from scratch for one of the databases, but it's finally behaving itself now. I appreciate you pointing me in the right direction.

Trigger to Update in the same table.

Hi,
I would like to create a trigger that when we insert into table ALL_CAPACITY_SNS_CELL1 it updates column Action on teh same table,if teher is an update, it will update the same table , column ACTION.
This is what I have attempted but seems to be technically wrong.
<pre>
create table ALL_CAPACITY_SNS_CELL1
( A varchar2,
action char(2),
date_executed date);
create or replace
TRIGGER ALL_CAPACITY_HISTORY_TRACKING
AFTER INSERT OR DELETE OR UPDATE ON ALL_CAPACITY_SNS_CELL1 FOR EACH ROW
DECLARE
v_operation VARCHAR2(10) := NULL;
BEGIN
IF INSERTING THEN
v_operation := 'I';
ELSIF UPDATING THEN
v_operation := 'U';
ELSE
v_operation := 'D';
END IF;
IF INSERTING
UPDATE ALL_CAPACITY_SNS_CELL1
SET ACTION =v_operation,
DATE_EXECUTED =sysdate ;
ELSIF UPDATING THEN
UPDATE ALL_CAPACITY_SNS_CELL1
SET ACTION =v_operation,
DATE_EXECUTED =sysdate ;
END IF;
END;
</pre>

CrackerJack wrote:
But above query made all ACTION nul...so we shoudl after insert or update trigger right?Obviously it is not working. You modified my code the way it does not make sense.
IF INSERTING
THEN
:NEW.ACTION := 'I';
IF UPDATING
THEN
:NEW.ACTION := 'U';
ELSE
:NEW.ACTION := 'X';
END IF;The code above checks if trigger fired on INSERT (IF INSERTING). In THEN branch of that IF you check if trigger fired on UPDATE. It makes no sense. Now, if you would use my trigger:
SQL> create table ALL_CAPACITY_SNS_CELL1
2 ( A varchar2(1),
3 action char(2),
4 date_executed date);
Table created.
SQL> create or replace
2    TRIGGER ALL_CAPACITY_HISTORY_TRACKING
3      BEFORE INSERT
4         OR UPDATE
5      ON ALL_CAPACITY_SNS_CELL1
6      FOR EACH ROW
7      BEGIN
8          IF INSERTING
9            THEN
10              :NEW.ACTION := 'I';
11            ELSE
12              :NEW.ACTION := 'U';
13          END IF;
14          :NEW.DATE_EXECUTED := sysdate ;
15 END;
16 /
Trigger created.
SQL> insert into ALL_CAPACITY_SNS_CELL1(a) values('A')
2 /
1 row created.
SQL> insert into ALL_CAPACITY_SNS_CELL1(a) values('B')
2 /
1 row created.
SQL> alter session set nls_date_format='mm/dd/yyyy hh24:mi:ss'
2 /
Session altered.
SQL> select * from ALL_CAPACITY_SNS_CELL1
2 /
A AC DATE_EXECUTED
A I 05/13/2009 08:56:02
B I 05/13/2009 08:56:09
SQL> update ALL_CAPACITY_SNS_CELL1
2 set a = 'X'
3 where a = 'B'
4 /
1 row updated.
SQL> select * from ALL_CAPACITY_SNS_CELL1
2 /
A AC DATE_EXECUTED
A I 05/13/2009 08:56:02
X U 05/13/2009 08:57:05
SQL> update ALL_CAPACITY_SNS_CELL1
2 set a = 'Y'
3 /
2 rows updated.
SQL> select * from ALL_CAPACITY_SNS_CELL1
2 /
A AC DATE_EXECUTED
Y U 05/13/2009 08:57:21
Y U 05/13/2009 08:57:21
SQL> insert into ALL_CAPACITY_SNS_CELL1(a) values('C')
2 /
1 row created.
SQL> select * from ALL_CAPACITY_SNS_CELL1
2 /
A AC DATE_EXECUTED
Y U 05/13/2009 08:57:21
Y U 05/13/2009 08:57:21
C I 05/13/2009 08:57:53
SQL> SY.

Updating values with in the same table for other records matching conditions

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