Behavior of high N lines updated with subquery sessions and parallel
Hello
I have the following scenario:
{code}
SQL > create table aaa12 (date start_time, id1 number (1) Primary key, the number of status)
((1), buffer_id number (2) default null);
Table created.
SQL > insert into aaa12 (the value of start_time, id1, status)
trunc(sysdate-level) select 2, level 6, 1 double
3. connect by level < 6;
5 rows created.
SQL > validation
2;
Validation complete.
SQL > select * from aaa12;
START_TIM STATUS BUFFER_ID ID1
--------- ---------- ---------- ----------
JUNE 10, 13 5 1
JUNE 9, 13 4 1
JUNE 8, 13 3 1
JUNE 7, 13 2 1
JUNE 6, 13 1 1
SQL > update aaa12
2 set buffer_id = 1,
3 status = 2
4 where in (select id1 id1
5 of (select id1
aaa12 6
7 where status = 1
Order 8 by start_time ASC)
9 where rownum < = 2)
10 - and status = 1
11;
2 lines to date.
{code}
Notice that I have not yet commit.
Now on a 2nd session I play the same update, only set buffer_id = 2:
{code}
SQL > update aaa12
2 set buffer_id = 2,
3 status = 2
4 where rowid in (select rowid
5 of (select rowid
aaa12 6
7 where status = 1
Order 8 by start_time ASC)
9 where rownum < = 2)
10 - and status = 1
11;
{code}
Expectations of update above (locked). Now let's commit the 1st session:
{code}
Validation complete.
SQL > select * from aaa12;
START_TIM STATUS BUFFER_ID ID1
--------- ---------- ---------- ----------
JUNE 10, 13 5 1
JUNE 9, 13 4 1
JUNE 8, 13 3 1
JUNE 7, 13 2 2 1
JUNE 6, 13 1 2 1
SQL >
{code}
and we'll see what happened during the 2nd session:
{code}
2 lines to date.
SQL >-after 1st session committed
SQL > select * from aaa12;
START_TIM STATUS BUFFER_ID ID1
--------- ---------- ---------- ----------
JUNE 10, 13 5 1
JUNE 9, 13 4 1
JUNE 8, 13 3 1
JUNE 7, 13 2 2 2
JUNE 6, 13 1 2 2
SQL >
{code}
It updated the same lines, even if their status should no longer be 1 committed after 1st session.
I guess what happens is that the subquery is performed on the time of execution of the update statement - which means that the subquery is read so coherent to reinstate the same lines.
but now if I do the same thing, but a comment the external status = 1 as part of the where the update in addition to the subquery - it seems to work:
I dropped the table, recreated, inserted the same 5 lines and now start the new updates:
{code}
SQL > update aaa12
2 set buffer_id = 1,
3 status = 2
4 where in (select id1 id1
5 of (select id1
aaa12 6
7 where status = 1
Order 8 by start_time ASC)
9 where rownum < = 2)
10 and status = 1
11;
2 lines to date.
SQL > select * from aaa12;
START_TIM STATUS BUFFER_ID ID1
--------- ---------- ---------- ----------
JUNE 10, 13 5 1
JUNE 9, 13 4 1
JUNE 8, 13 3 1
JUNE 7, 13 2 2 1
JUNE 6, 13 1 2 1
{code}
updated even with buffer_id = 2 on 2nd session:
{code}
SQL > update aaa12
2 set buffer_id = 2,
3 status = 2
4 where rowid in (select rowid
5 of (select rowid
aaa12 6
7 where status = 1
Order 8 by start_time ASC)
9 where rownum < = 2)
10 and status = 1
11;
{code}
session is locked, now after commit 1st session - session 2 updated and table looks like:
{code}
2 lines to date.
SQL > select * from aaa12;
START_TIM STATUS BUFFER_ID ID1
--------- ---------- ---------- ----------
JUNE 10, 13 5 1
JUNE 9, 13 4 2 2
JUNE 8, 13 3 2 2
JUNE 7, 13 2 2 1
JUNE 6, 13 1 2 1
{code}
I have 2 questions:
1. How is the 2nd scenario works and the subquery does not limit the update for the same 2 lines so that the update will update anything?
2 in case I have a table with many rows and I need to process the records in order, but want to do it in parallel - if I have 1000 lines of process and each session can handle 500 - I don't want to wait for the other, but work on different lines simultaneously. Is this possible without having to open a cursor with a SELECT... UPDATE SKIP LOCKED? because then I would have more than 500 lines of loop and do an update by records, which seems unwise to good performance.
Any help/advice would be appreciated.
Thank you
-Mor
Sorry, I missed a major difference between the two cases. And it's write consistency. There are some situations where UPDATE or DELETE are realizing that they cannot maintain consistency of statement-level and are forced to do a restore 'mini' (which may not be so "tiny") and start over. One of these cases is as follows. We have a UPDATE/DELETE with a WHERE clause. So we start to extract the rows that match WHERE clause. And we meet a line whose value to adapt the WHERE clause when statement has started now, but it is not. And that's exactly what is happening here. When the session 2 publishes the UPDATED session 1 did not err again. As a result, lines of June 6 & 7 correspond to the WHERE clause and must therefore be updated. However, they are locked by session 1. When the session commits 1, locks are released and session 2 could proceed with the updating of these two lines. However, to write rules of coherence mandate session 2 to check if WHERE clause is always true and realize that it's not. This causes a mini-restauration and UPDATE again. Now sinus session already committed 1, session 2 sees all of the changes and lines of June 6 & 7 do not match WHERE clause more (status = 2). So first of all (by START_TIM) two rows with STATUS = 1 are now June 8 & 9. That is why the session 2 updates the.
SY.
Tags: Database
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3 MAX (HPP.iOrden) as iOrdenUltimaParada,
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where the ED.dtJornada 12 = TO_DATE (January 14, 2013 ',' DD/MM/YYYY ') and ED.iIdExpedicion in (-131076)
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IIDEXPEDICION IIDEXPEDICIONDIARIA INUMPARADAS IORDENULTIMAPARADA DTHORAINI
------------- ------------------- ----------- ------------------ ---------
DTHORAFIN FPORCENTAJEREALIZADO ED_DTHORA ED_DTHORA ED_FPORCENTAJEREALIZADO
--------- -------------------- --------- --------- -----------------------
-131076 5662 406 15 JANUARY 13
15 JANUARY 13 JANUARY 15, 13 15 JANUARY 13 0
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15 JANUARY 13 JANUARY 15, 13 15 JANUARY 13 0
-131076 5664 406 15 JANUARY 13
15 JANUARY 13 JANUARY 15, 13 15 JANUARY 13 0
After reading this forum, I have change the query and try the following:
SQL > UPDATE
() 2
3. select distinct ED.iIdExpedicion, ED.iIdExpedicionDiaria,
4 MAX (PT.iOrdenEnTrayecto) + 1 as iNumParadas,
5 MAX (HPP.iOrden) as iOrdenUltimaParada,
6 MIN (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60)) as dtHoraInicioReal,
7 MAX (dtHora_LlegadaReal) as dtHoraFinReal,
8 100 * cast ((MAX (HPP.iOrden) + 1) as float) / cast ((MAX (PT.iOrdenEnTrayecto) + 1) as float) as fPorcentajeRealizado,
9 ED.dtHoraInicioReal ED_dtHoraInicioReal, ED.dtHoraFinReal as ED_dtHoraFinReal, ED.fPorcentajeRealizado as ED_fPorcentajeRealizado
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18)
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ERROR on line 2:
ORA-01732: operation non-legal data manipulation on this point of view
Little help?
Thanl in advance.
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Don't forget to post the desired results of these sample data, i.e. the content of the or the tables changed after the UPDATE is made.Is that what you want ed_update to look like after that everyhting is finished?
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Here is the plan of the explain command:
Oracle version is:PLAN_TABLE_OUTPUT ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Plan hash value: 1857481200 ----------------------------------------------------------------------------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop | TQ |IN-OUT| PQ Distrib | ----------------------------------------------------------------------------------------------------------------------------------------------------- | 0 | UPDATE STATEMENT | | 704K| 15M| 583 (5)| 00:00:02 | | | | | | | 1 | UPDATE | PSI | | | | | | | | | | | 2 | PX COORDINATOR | | | | | | | | | | | | 3 | PX SEND QC (RANDOM) | :TQ10000 | 704K| 15M| 583 (5)| 00:00:02 | | | Q1,00 | P->S | QC (RAND) | | 4 | PX BLOCK ITERATOR | | 704K| 15M| 583 (5)| 00:00:02 | | | Q1,00 | PCWC | | | 5 | TABLE ACCESS FULL | PSI | 704K| 15M| 583 (5)| 00:00:02 | | | Q1,00 | PCWP | | | 6 | SORT AGGREGATE | | 1 | 50 | | | | | | | | |* 7 | HASH JOIN | | 1 | 50 | 34 (3)| 00:00:01 | | | | | | | 8 | PARTITION RANGE SINGLE | | 22 | 550 | 23 (0)| 00:00:01 | KEY | KEY | | | | | 9 | PARTITION LIST SINGLE | | 22 | 550 | 23 (0)| 00:00:01 | KEY | KEY | | | | | 10 | INLIST ITERATOR | | | | | | | | | | | | 11 | TABLE ACCESS BY LOCAL INDEX ROWID| EVP | 22 | 550 | 23 (0)| 00:00:01 | KEY | KEY | | | | |* 12 | INDEX RANGE SCAN | PPP_EVP_IDX1 | 1 | | 5 (0)| 00:00:01 | KEY | KEY | | | | | 13 | PARTITION RANGE SINGLE | | 57 | 1425 | 10 (0)| 00:00:01 | KEY | KEY | | | | | 14 | PARTITION LIST SINGLE | | 57 | 1425 | 10 (0)| 00:00:01 | KEY | KEY | | | | | 15 | INLIST ITERATOR | | | | | | | | | | | | 16 | TABLE ACCESS BY LOCAL INDEX ROWID| EVE | 57 | 1425 | 10 (0)| 00:00:01 | KEY | KEY | | | | |* 17 | INDEX RANGE SCAN | EVE_M_IDX1 | 1 | | 4 (0)| 00:00:01 | KEY | KEY | | | | ----------------------------------------------------------------------------------------------------------------------------------------------------- Query Block Name / Object Alias (identified by operation id): ------------------------------------------------------------- 1 - UPD$1 5 - UPD$1 / PSI@UPD$1 6 - SEL$1 11 - SEL$1 / EVP@SEL$1 12 - SEL$1 / EVP@SEL$1 16 - SEL$1 / EVE@SEL$1 17 - SEL$1 / EVE@SEL$1 Predicate Information (identified by operation id): --------------------------------------------------- 7 - access("EVE"."CODSOC"="EVP"."CODSOC" AND "EVE"."ACHVTE"="EVP"."ACHVTE" AND "EVE"."TYPEVE"="EVP"."TYPEVE" AND "EVE"."NUMEVE"="EVP"."NUMEVE") 12 - access("EVP"."CODSOC"=TO_NUMBER(:B1) AND "EVP"."ACHVTE"='V' AND ("EVP"."TYPEVE"='FAV' OR "EVP"."TYPEVE"='TIC') AND "EVP"."CODPRO"=:B2) 17 - access("EVE"."CODSOC"=TO_NUMBER(:B1) AND "EVE"."ACHVTE"='V' AND ("EVE"."TYPEVE"='FAV' OR "EVE"."TYPEVE"='TIC') AND "EVE"."DATEVE">='20090101' AND "EVE"."DATEVE"<='20091231') filter(SUBSTR("EVE"."DATEVE",1,6)>='200901' AND SUBSTR("EVE"."DATEVE",1,6)<='200912') Column Projection Information (identified by operation id): ----------------------------------------------------------- 2 - (upd=4; cmp=2,3) "SYS_ALIAS_2".ROWID[ROWID,10], "PSI"."NUM_MAG"[VARCHAR2,12], "PSI"."REF_PRO"[VARCHAR2,16], "PREMIERE_VENTE"[CHARACTER,8] 3 - (#keys=0) "SYS_ALIAS_2".ROWID[ROWID,10], "PSI"."NUM_MAG"[VARCHAR2,12], "PSI"."REF_PRO"[VARCHAR2,16], "PREMIERE_VENTE"[CHARACTER,8] 4 - "SYS_ALIAS_2".ROWID[ROWID,10], "PSI"."NUM_MAG"[VARCHAR2,12], "PSI"."REF_PRO"[VARCHAR2,16], "PREMIERE_VENTE"[CHARACTER,8] 5 - "SYS_ALIAS_2".ROWID[ROWID,10], "PSI"."NUM_MAG"[VARCHAR2,12], "PSI"."REF_PRO"[VARCHAR2,16], "PREMIERE_VENTE"[CHARACTER,8] 6 - (#keys=0) MIN("EVE"."DATEVE")[8] 7 - (#keys=4) "EVP"."CODSOC"[NUMBER,22], "EVE"."CODSOC"[NUMBER,22], "EVP"."ACHVTE"[VARCHAR2,1], "EVE"."ACHVTE"[VARCHAR2,1], "EVP"."TYPEVE"[VARCHAR2,3], "EVE"."TYPEVE"[VARCHAR2,3], "EVP"."NUMEVE"[NUMBER,22], "EVE"."NUMEVE"[NUMBER,22], "EVP".ROWID[ROWID,10], "EVP"."CODPRO"[VARCHAR2,16], "EVE".ROWID[ROWID,10], "EVE"."DATEVE"[VARCHAR2,8] 8 - "EVP".ROWID[ROWID,10], "EVP"."ACHVTE"[VARCHAR2,1], "EVP"."TYPEVE"[VARCHAR2,3], "EVP"."NUMEVE"[NUMBER,22], "EVP"."CODPRO"[VARCHAR2,16], "EVP"."CODSOC"[NUMBER,22] 9 - "EVP".ROWID[ROWID,10], "EVP"."ACHVTE"[VARCHAR2,1], "EVP"."TYPEVE"[VARCHAR2,3], "EVP"."NUMEVE"[NUMBER,22], "EVP"."CODPRO"[VARCHAR2,16], "EVP"."CODSOC"[NUMBER,22] 10 - "EVP".ROWID[ROWID,10], "EVP"."ACHVTE"[VARCHAR2,1], "EVP"."TYPEVE"[VARCHAR2,3], "EVP"."NUMEVE"[NUMBER,22], "EVP"."CODPRO"[VARCHAR2,16], "EVP"."CODSOC"[NUMBER,22] 11 - "EVP".ROWID[ROWID,10], "EVP"."ACHVTE"[VARCHAR2,1], "EVP"."TYPEVE"[VARCHAR2,3], "EVP"."NUMEVE"[NUMBER,22], "EVP"."CODPRO"[VARCHAR2,16], "EVP"."CODSOC"[NUMBER,22] 12 - "EVP".ROWID[ROWID,10], "EVP"."CODSOC"[NUMBER,22], "EVP"."ACHVTE"[VARCHAR2,1], "EVP"."TYPEVE"[VARCHAR2,3], "EVP"."CODPRO"[VARCHAR2,16] 13 - "EVE".ROWID[ROWID,10], "EVE"."ACHVTE"[VARCHAR2,1], "EVE"."TYPEVE"[VARCHAR2,3], "EVE"."NUMEVE"[NUMBER,22], "EVE"."DATEVE"[VARCHAR2,8], "EVE"."CODSOC"[NUMBER,22] 14 - "EVE".ROWID[ROWID,10], "EVE"."ACHVTE"[VARCHAR2,1], "EVE"."TYPEVE"[VARCHAR2,3], "EVE"."NUMEVE"[NUMBER,22], "EVE"."DATEVE"[VARCHAR2,8], "EVE"."CODSOC"[NUMBER,22] 15 - "EVE".ROWID[ROWID,10], "EVE"."ACHVTE"[VARCHAR2,1], "EVE"."TYPEVE"[VARCHAR2,3], "EVE"."NUMEVE"[NUMBER,22], "EVE"."DATEVE"[VARCHAR2,8], "EVE"."CODSOC"[NUMBER,22] 16 - "EVE".ROWID[ROWID,10], "EVE"."ACHVTE"[VARCHAR2,1], "EVE"."TYPEVE"[VARCHAR2,3], "EVE"."NUMEVE"[NUMBER,22], "EVE"."DATEVE"[VARCHAR2,8], "EVE"."CODSOC"[NUMBER,22] 17 - "EVE".ROWID[ROWID,10], "EVE"."CODSOC"[NUMBER,22], "EVE"."ACHVTE"[VARCHAR2,1], "EVE"."TYPEVE"[VARCHAR2,3], "EVE"."DATEVE"[VARCHAR2,8]
And my Optimizer Parms are:Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bit ...
SQL > show parameter optimizer
If you think I missed something important in this post sample made me know, please.NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ optimizer_dynamic_sampling integer 2 optimizer_features_enable string 10.2.0.3 optimizer_index_caching integer 0 optimizer_index_cost_adj integer 100 optimizer_mode string FIRST_ROWS_100 optimizer_secure_view_merging boolean TRUE SQL> SQL> show parameter cursor_sharing NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ cursor_sharing string EXACT SQL> column sname format a20 SQL> column pname format a20 SQL> column pval2 format a20 SQL> select 2 sname,pname,pval1,pval2 3 from sys.aux_stats$; SNAME PNAME PVAL1 PVAL2 -------------------- -------------------- ---------- -------------------- SYSSTATS_INFO STATUS COMPLETED SYSSTATS_INFO DSTART 01-14-2010 21:05 SYSSTATS_INFO DSTOP 01-14-2010 21:05 SYSSTATS_INFO FLAGS 1 SYSSTATS_MAIN CPUSPEEDNW 1247,559 SYSSTATS_MAIN IOSEEKTIM 5,053 SYSSTATS_MAIN IOTFRSPEED 45469,627 SYSSTATS_MAIN SREADTIM 2,583 SYSSTATS_MAIN MREADTIM 1,851 SYSSTATS_MAIN CPUSPEED 1329 SYSSTATS_MAIN MBRC 14 SNAME PNAME PVAL1 PVAL2 -------------------- -------------------- ---------- -------------------- SYSSTATS_MAIN MAXTHR 174532608 SYSSTATS_MAIN SLAVETHR 48128
Kind regards
MarekTo update all the records in the table to 700K, one of the fastest ways would be to recreate a new table:
CREATE TABLE PSI_NEW AS SELECT psi.*, min (eve.dateve)
FROM Eve, lb/po2, evp
where
Eve.codsoc = evp.codsoc and eve.achvte = evp.achvte and eve.typeve = evp.typeve and eve.numeve = evp.numeve
and eve.codsoc = psi.num_mag and eve.achvte = 'V' and eve.typeve in('TIC','FAV')
and eve.dateve ' 20090101 ', ' 20091231' and evp.codpro = psi.ref_proAnother technique that can work well is using the merge command:
MERGE INTO PSI has (select min (eve.dateve) as min_dat, evp.codpro as codpro help
Since the day before, evp
where eve.codsoc = evp.codsoc and eve.achvte = evp.achvte and eve.typeve = evp.typeve and eve.numeve = evp.numeve
and eve.codsoc = psi.num_mag and eve.achvte = 'V' and eve.typeve in('TIC','FAV')
and eve.dateve between '20090101' and '20091231'
GROUP BY evp.codpro) b ON (a.ref_pro = b.codpro)
WHEN MATCHED, THEN update SET PREMIERE_VENTE = B.min_datThe advantage of the two modes is that you don't have any subquery launched K 700 times.
Published by: B.Guillaumin on January 15, 2010 18:00
Published by: B.Guillaumin on January 15, 2010 18:27
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Update with the Lead feature and several lines
I have a table such as:
Table1:
OrderNumber EFFECTIVE_DATE EFFECTIVE_END_DATE FileName
123 11/5/2015-12/31/2099 File5.txt
123, 7/11/2015-12/31/2099 File7.txt
or it can look like:
Table2
OrderNumber EFFECTIVE_DATE EFFECTIVE_END_DATE FileName
123 11/5/2015-11/7/2015 File5.txt
123, 7/11/2015-11/9/2015 File7.txt
123 11/9/2015-12/31/2099 File9.txt
123 11/15/2015-12/31/2099 File15.txt
I want to take the 2nd to the last EndDate and update with the previous value.
So in fact, it would look like this.
Table1:
OrderNumber EFFECTIVE_DATE EFFECTIVE_END_DATE FileName
123 11/5/2015-11/7/2015 File5.txt
123, 7/11/2015-12/31/2099 File7.txt
or
Table2
OrderNumber EFFECTIVE_DATE EndDate FileName
123 11/5/2015-11/7/2015 File5.txt
123, 7/11/2015-11/9/2015 File7.txt
123-11/9/11/15 to 2015/2015 File9.txt
123 11/15/2015-12/31/2099 File15.txt
I got it work in a select statement to a single value. now I just need help it enter an UPDATE statement and update all records.
SELECT W.EFFECTIVE_DATE, W.EFFECTIVE_END_DATE,
NVL (LEAD (W.EFFECTIVE_DATE, 1) (ORDER implementation W.EFFECTIVE_DATE), December 31, 99 ') AS 'EFFECTIVE_DATE_NEW '.
OF WH_ORDERS_REPORT W
WHERE ORDERNUMBER = '10460992';
It did not work:
UPDATE WH_ORDERS_REPORT WH
SET EFFECTIVE_END_DATE = (SELECT NVL (LEAD (WH2. EFFECTIVE_DATE, 1) (ORDER of WH2. (EFFECTIVE_DATE), DECEMBER 31, 99 ')
OF WH_ORDERS_REPORT WH2
WHERE WH. ORDERNUMBER = WH2. ORDERNUMBER)
I appreciate your help in the creation of an update statement to do this.
Rap, but it's working now. I'll confirm with a few other records before I mark as correct, but what I see so far, it is beautiful, thank you!
merge into WH_LIFELINE_ORDERS_REPORT D
a_l'_aide_de)
Select
DISTINCT ORDERNUMBER,
CURRENTSTATUSDATETIME,
NVL (LEAD(EFFECTIVE_DATE, 1) ON (ORDERNUMBER partition
(EFFECTIVE_DATE order), December 31, 99 ') as EFFECTIVE_END_DATE
of WH_LIFELINE_ORDERS_REPORT
) S
WE (D.ORDERNUMBER = S.ORDERNUMBER
AND D.CURRENTSTATUSDATETIME = S.CURRENTSTATUSDATETIME
)
When matched then
setting a day of set D.EFFECTIVE_END_DATE = S.EFFECTIVE_END_DATE;
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How do I remove high-low lines with VID HD in first elements 7?
Problem: Every time I have shoot original sequences in camera and import video in first, there are lines up/down, unless I develop the video that will ruin the quality of original shooting.
Camera: I use a Sony 10.2 mega pixels HD AVCHD, taken from view in 1080I/480I - HD - 16:9
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Hello
My update with the inner join does not seem to work.
UPDATE RECAP R SET R.FLAVOR = (SELECT FN. FLAVOR_NDC FN FLAVOR, REPLACE CAP R WHERE R.NDC11 = FN. NDC11)
When I write the query above, the inner circle question (SELECT FN. FLAVOR_NDC FN FLAVOR, REPLACE CAP R WHERE R.NDC11 = FN. NDC11) returns multiple lines, and it's a new syntax for me (as I was Teradata and SQL server).
Can you please how this request can be written to make it work?
I get the error message below
SQL error: ORA-01427: einreihig subquery returns multiple rows
01427 00000 - "einreihig subquery returns several lines.1. fix your code:
UPDATE RECAP R SET R.FLAVOR = (SELECT FN.FLAVOR FROM FLAVOR_NDC FN WHERE R.NDC11 = FN.NDC11)2. you can use the fusion
merge into RECAP R using FLAVOR_NDC FN on(R.NDC11 = FN.NDC11) when matched then update set R.FLAVOR = FN.FLAVORKind regards
Malakshinov Sayan -
Had to do a restoration complete my xp machine and will not update, in the past, system automatically updated with cartridges of siema etc service?
What is happening, it is that it is so more the possibility of a user friendly hands on automatic update of Windows XP from a clean install. Windows Update will NOT synchronize with and updated in the current order status to update a machine with a clean install of XP, but you separately download some patches and intermediate updates and apply them manually, to have a machine that connects a bit normally with Windows Update.
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http://support.Microsoft.com/kb/2888505
Scroll to the information file for XP and Server 2003
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I loaded all updates firmware for Surface Pro 3 including that published on 16-01-14
This is a limitation of the TMS?
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