SQL - update with joins

My database contains several tables in a parent-child relationship (5 levels). Tables for children contain unique (foreign key) of the parents. I need to update a field in the table below level with a hardcoded value (for example: the value d.field3 = 103), but only on the rows that match certain general criteria. Criteria are set at different levels of the hierarchy. I tried several approaches, but in the end, I still get the same error:

ORA-01779: cannot modify a column that is mapped to a table not preserved key

So far, I tried the following:
-create a view based on all joins (where b.fk = a.id etc.) and then write my update with the "filtering" query where clauses (for example: where b.field1 = 'abc' and c.field2 = 123... etc)
-create a query of update (without creating a preliminary view) which contains in the 'where' clause all joins and clauses of filtering

I am trying to adapt some scripts from SQL Server to Oracle, but nothing seems to work for this one. Your help is greatly appreciated.

Thank you
Alberto

Something like:

update CM_CRITERION_LINE_MASTER set function_id = 103
where criterion_master_id in (
  SELECT CM_CRITERION_MASTER.criterion_master_id
  from CM_CRITERION_MASTER, CM_STATEMENT, CM_CRITERION, CM_RULE, CM_CASE
  where CM_CRITERION_MASTER.criterion_master_id = CM_CRITERION.criterion_master_id
    and CM_CRITERION.statement_id = CM_STATEMENT.statement_id
    and CM_STATEMENT.rule_id = CM_RULE.rule_id
    and CM_RULE.case_id=CM_CASE.case_id
    and CM_CASE.case_category_id=2
    and CM_CASE.case_id > 799999
    and CM_RULE.rule_category_id 9
    and CM_RULE.task_id in (102,108,112,113,114,123,116)
)
  and CM_CRITERION_LINE_MASTER.function_id=11

Of course, you need to test.

Time to understand that SQL Server and Oracle, as well as other DBMS each differ :)

Gints Plivna
http://www.gplivna.EU

Tags: Database

Similar Questions

PL/SQL: Updated with a subquery, two tables * HELP *.
I've really messed with instructions UPDATE in PL/SQL for awhile, so I'm a little frustrated now to try to get what seems to be a simple UPDATE to work. First of all, I have a SQL statement that produces what might be described as a key value of data matching.

SELECT distinct i.id, i.code
FROM the point i, pi product
WHERE i.ccode = '12'
AND i.scode = 'ACTIVE '.
AND i.id IS NOT NULL
AND pi.id = i.id
AND IN i.id
(SELECT DISTINCT ri.item_id
CATEGORY ri
WHERE ri.category_code = 'RRR')
AND pi.new_id IS NULL;

This produces a list of the ID of the ELEMENT and the corresponding CODES. What I'm trying to do is UPDATE the new_id PRODUCT with a combination of one field string "1212" concatenated with the ARTICLE of the SQL code above.

So... If my listing above produces:

IDENTIFICATION CODE
012331 432412175321
041234 421412421085
065645 776545521108

I need to update the PRODUCT table new_id where the PRODUCT.ID = '012331' to '121243241217532'

Can anyone offer any help? This seems to be me stumping.
Which can be also probably cut down to something like...
```
update product
set new_id = (SELECT '1212'||i.code
              FROM item i
              WHERE i.ccode = '12'
              AND   i.scode = 'ACTIVE'
              AND   i.id IN
                          (SELECT DISTINCT ri.item_id
                           FROM category ri
                           WHERE ri.category_code = 'RRR')
              AND   i.id = product.id
             )
where new_id is null;
```

update with join

If I want to the lock table 'AGREEMENT' and at the same time I need useful variables 'v_agreement_id, v_agr_version_id', then do it like the following below code:

  select a.ID,
      (select agrv.ID from AGR_VERSION agrv
      where agrv.LAST_VERSION = 'Y'
         and agrv.CLOSED_TIME is null
         and agrv.AGREEMENT_ID = a.ID
      )         
   into v_agreement_id, v_agr_version_id
   from AGREEMENT a   
   where a.ID = i_agreement_id
   for update;

Or I can do so:

 select a.ID, agrv.ID      
      into v_agreement_id, v_agr_version_id
   from AGREEMENT a,
      AGR_VERSION agrv      
   where a.ID = i_agreement_id
      and agrv.LAST_VERSION = 'Y'
      and agrv.CLOSED_TIME is null
      and agrv.AGREEMENT_ID = a.ID
   for update;

What is the difference between these 2 approuches? The fact the 'for update' understanding in the second approach it takes to lock?

Well, beside the fact that two queries are not equal, the second request will lock two tables record result (LINE MODE EXCLUSIVE). While the first query will be locked only reviews in LINE MODE EXCLUSIVE tables. Here's the test scenario:

SQL> create table test5 (a  number);

Table created.

SQL> ed
Wrote file afiedt.buf

  1* create table test6 (b  number)
SQL> /

Table created.

SQL> SELECT * FROM test5, test6
  2  for update;

no rows selected

SQL> ed
Wrote file afiedt.buf

  1  SELECT NVL(lockwait,'ACTIVE')  AS Lockwait,
  2         DECODE(LOCKED_MODE, 2, 'ROW SHARE', 3, 'ROW EXCLUSIVE', 4, 'SHARE', 5,
  3              'SHARE ROW EXCLUSIVE', 6, 'EXCLUSIVE',  'UNKNOWN') AS Locked_mode
  4  FROM   SYS.V_$LOCKED_OBJECT A,
  5         SYS.ALL_OBJECTS B,
  6         SYS.V_$SESSION c
  7  WHERE  A.OBJECT_ID = B.OBJECT_ID
  8  AND    C.SID = A.SESSION_ID
  9* AND object_name like 'TEST%'
SQL> /

LOCKWAIT         LOCKED_MODE
---------------- -------------------
ACTIVE           ROW EXCLUSIVE
ACTIVE           ROW EXCLUSIVE

SQL> rollback;

Rollback complete.

SQL> SELECT a , (SELECT b FROM test6 where test5.a=test6.b)
  2  FROM test5
  3  for update;

no rows selected

SQL> ed
Wrote file afiedt.buf

  1  SELECT object_name, NVL(lockwait,'ACTIVE')  AS Lockwait,
  2         DECODE(LOCKED_MODE, 2, 'ROW SHARE', 3, 'ROW EXCLUSIVE', 4, 'SHARE', 5,
  3              'SHARE ROW EXCLUSIVE', 6, 'EXCLUSIVE',  'UNKNOWN') AS Locked_mode
  4  FROM   SYS.V_$LOCKED_OBJECT A,
  5         SYS.ALL_OBJECTS B,
  6         SYS.V_$SESSION c
  7  WHERE  A.OBJECT_ID = B.OBJECT_ID
  8  AND    C.SID = A.SESSION_ID
  9* AND object_name like 'TEST%'
SQL> /

OBJECT_NAME                    LOCKWAIT         LOCKED_MODE
------------------------------ ---------------- -------------------
TEST5                          ACTIVE           ROW EXCLUSIVE

If you want to lock a single table for the secodn query, use

UPDATE OF

Best regards

Mohammed Riaz

update with joins? is there a simpler way?
Hi all
I have a table with 6 columns,
col1: engine varchar2 (20).
col2: number of measures.
COL3: date,
COL4: full time.
col5: full minute.
col6: flag of tank (1) (Y/N) default: Y

the primary key defined on this table is a composite motor PK + date + time minute

and another table B with 2 columns:
col1: engine varchar2 (20).
col2: maxrate number

I need to turn the flag in the first table (col6) of Y to N on lines where (col2) as my first table meets certain conditions concerning the maxrate (col2 in my second table B); Let's say that whenever measures < 0.98 * maxrate.

How do I do that?

Thank you
Kowalsky
Hello

Something like:
```
UPDATE tableA TA
   SET TA.flag = CASE WHEN EXISTS (SELECT 1 FROM tableB TB WHERE TA.engine = TB.engine AND TA.measurement < 0.98 * TB.maxrate) THEN 'N' ELSE 'Y' END
 WHERE TA.flag = 'Y';
```
In addition, a DATE column already hours, minutes and seconds, so no real don't need to get out separately (you will see them with TO_CHAR(date_col,'HH24:MI:SS').

Update query with join statement

Hi guys, would check how to write a query to update with the inner join statement? The case is like this, I need to update PRD_ID on TBL A as below, based on the information of lookup table. The keys are based on the A03 column to the table time to condition only select records in LOOKUP_TBL where PRD_ID = 110001 then update to TBL_A for those who match the data and FIX_FLT = 1
I have an update query and it works in SQL SERVER but not in ORACLE
Update a PRD_ID = B.PRD_ID set
Inner TBL_A A join B LOOKUP_TBL
On A.A03 = B.A03
AND A.FIX_FLT = 1 AND B.PRD_ID = '110001';
TBL_A
PRD_ID A03 FIX_FLT TXN DATE
1 A1 1 1 23/10/2010
1 A2 1 1 10/24/2010
1 A3 3 2 10/25/2010
1 A4 3 2 10/26/2010
1 A5 3 1 27/10/2010
LOOKUP_TBL
PRD_ID A03 NOTE
110001 A1 NULL VALUE
110001 A2 NULL VALUE
110005 A3 NULL VALUE
110005 A4 NULL VALUE
110001 A5 NULL VALUE

You can write updates like this in Oracle. It's called updatable join views. Something like this:

Update
(select a.prd_id a_prd_id
b.prd_id b_prd_id
Inner TBL_A A join B LOOKUP_TBL
On A.A03 = B.A03
AND A.FIX_FLT = 1 AND B.PRD_ID = '110001'
)
Set a_prd_id = b_prd_id;

But you must have the constraints appropriate in place, otherwise you will get the error "key preserved table.

Update with the join and group by
Hi all

I'm currently updating multiple columns in a table from an inner join query.
First one recover the affected rows and values that I need for the update (which I call this subquery ED_Query).
It is important to note that this subquery has a group of and and the having clause.

My first attempt (using the query running in the SQL Server query) fails:

SQL > update ED_Update
2 set ED_Update.dtHoraInicioReal = ED_Query.dtHoraInicioReal,
3 ED_Update.dtHoraFinReal = ED_Query.dtHoraFinReal,
4 ED_Update.fPorcentajeRealizado = ED_Query.fPorcentajeRealizado
HISTORICOS_AVANZA 5. HSAE_HIS_EXPEDICIONDIARIA ED_Update
inner join 6)
7. select distinct ED.iIdExpedicion, ED.iIdExpedicionDiaria,
8 MAX (PT.iOrdenEnTrayecto) + 1 as iNumParadas,
9 MAX (HPP.iOrden) as iOrdenUltimaParada,
10 MIN (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60)) as dtHoraInicioReal,
11 MAX (dtHora_LlegadaReal) as dtHoraFinReal,
12 100 * cast ((MAX (HPP.iOrden) + 1) as float) / cast ((MAX (PT.iOrdenEnTrayecto) + 1) as float) as fPorcentajeRealizado
13 of HISTORICOS_AVANZA. ED HSAE_HIS_EXPEDICIONDIARIA
14 left join HISTORICOS_AVANZA. HSAE_HIS_HORAPASOPARADA HPP
15 ED.iIdExpedicion = HPP.iIdExpedicion and ED.dtJornada = HPP.dtJornada
16 left join AVANZA. SAE_URB_PARADASTRAYECTO PT on ED.iIdLinea = PT.iIdLinea and ED.iIdTrayecto = PT.iIdTrayecto
17 where ED.dtJornada = TO_DATE (January 14, 2013 ',' DD/MM/YYYY ') and ED.iIdExpedicion in (-131076)
18 ED.iIdExpedicion, ED.iIdExpedicionDiaria, ED.dtHoraInicioReal, ED.dtHoraFinReal group
19 having ED.dtHoraInicioReal <>min (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60))
20 or ED.dtHoraFinReal <>max (dtHora_LlegadaReal)
(21) ED_Query
22 we ED_Update.iIdExpedicionDiaria = ED_Query.iIdExpedicionDiaria;

ERROR on line 5:
ORA-00933: SQL not correctly completed command.

Subquery (ED_Query) work fine in Oracle, so I suspect that the problems are when I mix with the update clause.

SQL > select distinct ED.iIdExpedicion, ED.iIdExpedicionDiaria,.
2 MAX (PT.iOrdenEnTrayecto) + 1 as iNumParadas,
3 MAX (HPP.iOrden) as iOrdenUltimaParada,
4 MIN (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60)) as dtHoraInicioReal,
5 MAX (dtHora_LlegadaReal) as dtHoraFinReal,
6 100 * cast ((MAX (HPP.iOrden) + 1) as float) / cast ((MAX (PT.iOrdenEnTrayecto) + 1) as float) as fPorcentajeRealizado,
7 ED.dtHoraInicioReal ED_dtHoraInicioReal, ED.dtHoraFinReal as ED_dtHoraFinReal, ED.fPorcentajeRealizado as ED_fPorcentajeRealizado
8 of HISTORICOS_AVANZA. ED HSAE_HIS_EXPEDICIONDIARIA
9 left join HISTORICOS_AVANZA. HSAE_HIS_HORAPASOPARADA HPP
10 on ED.iIdExpedicion = HPP.iIdExpedicion and ED.dtJornada = HPP.dtJornada
11 left join AVANZA. SAE_URB_PARADASTRAYECTO PT on ED.iIdLinea = PT.iIdLinea and ED.iIdTrayecto = PT.iIdTrayecto
where the ED.dtJornada 12 = TO_DATE (January 14, 2013 ',' DD/MM/YYYY ') and ED.iIdExpedicion in (-131076)
13 group of ED.iIdExpedicion, ED.iIdExpedicionDiaria, ED.dtHoraInicioReal, ED.dtHoraFinReal, ED.fPorcentajeRealizado
14 after ED.dtHoraInicioReal <>min (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60))
15 or ED.dtHoraFinReal <>max (dtHora_LlegadaReal);

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

-131076 5663 406 15 JANUARY 13
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
HISTORICOS_AVANZA 10. ED HSAE_HIS_EXPEDICIONDIARIA
11 left join HISTORICOS_AVANZA. HSAE_HIS_HORAPASOPARADA HPP
12 on ED.iIdExpedicion = HPP.iIdExpedicion and ED.dtJornada = HPP.dtJornada
13 left join AVANZA. SAE_URB_PARADASTRAYECTO PT on ED.iIdLinea = PT.iIdLinea and ED.iIdTrayecto = PT.iIdTrayecto
14 where ED.dtJornada = TO_DATE (January 14, 2013 ',' DD/MM/YYYY ') and ED.iIdExpedicion in (-131076)
Group 15 of ED.iIdExpedicion, ED.iIdExpedicionDiaria, ED.dtHoraInicioReal, ED.dtHoraFinReal, ED.fPorcentajeRealizado
16 having ED.dtHoraInicioReal <>min (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60))
17 or ED.dtHoraFinReal <>max (dtHora_LlegadaReal)
18)
19 SET ED_dtHoraInicioReal = dtHoraInicioReal,
20 ED_dtHoraFinReal = dtHoraFinReal,
21 ED_fPorcentajeRealizado = fPorcentajeRealizado;

ERROR on line 2:
ORA-01732: operation non-legal data manipulation on this point of view

Little help?

Thanl in advance.

Published by: 984483 on 28-ene-2013 01:48
Hello

Thanks for posting the CREATE TABLE and INSERT.
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?
```
DATE01      NUMBERMAX  NUMBERSUM
---------- ---------- ----------
01/01/2013         30         60
02/01/2013          0          0
03/01/2013          0          0
```
If so, here's a way to do it:
```
UPDATE     ed_update     u
SET     (numbermax, numbersum) =
     (
             SELECT  MAX (number01)
          ,     SUM (number01)
          FROM     ed_query
          WHERE     date01     = u.date01
     )
WHERE     date01     = TO_DATE ('01/01/2013', 'DD/MM/YYYY')   -- If wanted
;
```
In Oracle, INNER JOIN works only in the FROM clause of a SELECT statement.
When you want to update a table with values from another table, you can do a subquery correlated (as I showed above) or use the MERGER instead of UPDATE.

Update with INNER JOIN
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.FLAVOR
```
Kind regards
Malakshinov Sayan

Update statement with joins of tables and where Clause
Hi, I have MS SQL background and I try to execute an update statement in Oracle with joins of tables. However, the syntax below does not work but I think it works for MS SQL.

Basically, the base table must be attached to a master table trend with monthly snapshots, an account will be only an entry for a given date monthly. Where clause must be limited to accounts within a certain range of interest rates.

The first approach returns command SQL ORA-00933 not correctly completed, and the second approach returns ORA-01427 row below query returns multiple rows. Can anyone help? Thanks in advance!

1:

Update PenaltyAll
Set a.indicator = month (b.)
of PenaltyAll an inner join Master b on a.acctno = b.accountnumber
where a.monthend='01/31/2009' and b.date='12/31/2008' and b.apr < 20

2:

Update PenaltyAll
adjustment indicator =
(select to_char (b., 'MM')
of PenaltyAll an inner join Master b on a.acctno = b.accountnumber
"where to_char (a.monthend,'mm/dd/yyyy ') = 31 January 2009"
(et to_char(b.date,'mm/dd/yyyy') = December 31, 2008 "
and b.apr < 20)

Published by: sqlrookie on August 21, 2009 07:04
I edited my post, that was my mistake, ANC you try now?

Update with Outer Join, round 2
Thanks for those of you who have helped me out on the first (I never thought that you could use a SELECTION of a line like that).

However, here is a new version of my problem:

I have three tables.
Table_1 has a column that must be updated based on the Table_2 and Table_3 values.
Table_1 both Table_2 have values used to determine which line of Table_3 to use.
However, not all the rows in Table_1 has a corresponding line of Table_3, in which case the value of Table_3 to use is assumed to be 1.

The tables and the corresponding columns are:

TABLE_1
value_1 - value update
key_2 - a pointer to TABLE_2
key_3a - a pointer to a TABLE_3 or a dummy value if there is no record of the TABLE_3

TABLE_2
key_2 - the primary key
key_3b - a secondary pointer to TABLE_3
Value_2 - a value to use in the calculation of TABLE_1.value_1

TABLE_3
key_3a - the first part of the unique key
ley_3b - the second part of the unique key
value_3 - a value to use in the calculation of TABLE_1.value_1

If there is a line in table_3 which matches the values table_1.key_3a and table_2.key_3b (where table_2.key_2 = table_1.key_2):
Set table_1.value_1 = table_2.value_2 * table_3.value_3
If there is no such line in table_3:
Set table_1.value_1 = table_2.value_2

I want to do something like this:

UPDATE table_1 t1
SET = Value_1
(
SELECT T2.value_2 * NVL (t3.value_3, 1)
IN table_2 t2
LEFT JOIN t3 table_3
WE (t3.key_3b = t2.key_3b and t3.key_3a = t1.key_3a)
WHERE t2.key_2 = t1.key_2
)

However, Oracle does not t1 to be referenced in the outer join clause.
(Assume that each value of key_2 in table_1 is table_2 as well: it is only the key_3 value that can be a model.)

If I move "t3.key_3 = t1.key_3" to the WHERE clause, so t1.value_1 is null for lines without the corresponding value of the table_3.

I can do it with a clone of table_1 using ROWID:

UPDATE table_1 t1
SET = Value_1
(
SELECT T2.value_2 * NVL (t3.value_3, 1)
FROM table_1 t1a
JOIN the t2 table_2
ON t2.key_2 = t1a.key_2
LEFT JOIN t3 table_3
WE (t3.key_3b = t2.key_3b and t3.key_3a = t1a.key_3a)
WHERE t1a.row_id = t1.row_id
)

However, is there an easier way to do it using ANSI joins (i.e. without (+) syntax)?
I have this feeling I'm missing something obvious here.
Sorry, I'm not sure understand your scenario this time. It is early and I did have my 64 ounces of caffiene still.

I didn't look at the statement, you were trying to run and reformatting:
```
SQL> UPDATE table_1 t1
  2  SET    value_1 = (SELECT t2.value_2 * NVL((select t3.value_3
  3                                             from   table_3 t3
  4                                             where  t3.key_3b = t2.key_3b
  5                                             and    t3.key_3a = t1.key_3a)
  6                                          ,1)
  7                    FROM   table_2 t2
  8                    WHERE  t2.key_2 = t1.key_2
  9                   )
 10  ;

0 rows updated.
```
I don't know if it will work for you, but at least it is syntactically correct.

Update with Outer Join

Is it possible to do an update that involves an outer join on the updated table?

Here's what I mean - now, I have something like:

UPDATE table_1 t1
SET col_1 =
(
SELECT t2.col_2
IN table_2 t2
WHERE t2.t1_key = t1.t1_key
)
WHERE THERE ARE
(
SELECT t2.*
IN table_2 t2
WHERE t2.t1_key = t1.t1_key
);
--
UPDATE table_1 t1
SET col_1 = 0
WHERE THERE IS NO
(
SELECT t2.*
IN table_2 t2
WHERE t2.t1_key = t1.t1_key
);

Yes, I could set all values of table_1.col_1 = 0 first and then perform the update first, but it is inefficient because of the number of records in the table that could be updated twice.

Is it possible to combine these two updates in a single update statement?

You can simply use your first update and omit the WHERE EXISTS clause since you want to update all rows in table_1 anyway.

If the subquery finds a match, it will update the selected value. Normally, a non-match would set the column to a null value, but you can solve this with NVL:

SQL> select * from table_1;

              T1_KEY                COL_1
-------------------- --------------------
                   1                    1
                   2                    1
                   3                    1
                   4                    1
                   5                    1
                   6                    1
                   7                    1
                   8                    1
                   9                    1

9 rows selected.

SQL> select * from table_2;

              T2_KEY                COL_2
-------------------- --------------------
                   1                    9
                   3                    9
                   5                    9

SQL> UPDATE table_1 t1
  2  SET    col_1 = nvl (
  3                       (SELECT t2.col_2
  4                        FROM   table_2 t2
  5                        WHERE  t2.t2_key = t1.t1_key
  6                       ),0
  7                     )
  8  ;

9 rows updated.

SQL> select * from table_1;

              T1_KEY                COL_1
-------------------- --------------------
                   1                    9
                   2                    0
                   3                    9
                   4                    0
                   5                    9
                   6                    0
                   7                    0
                   8                    0
                   9                    0

9 rows selected.

Update statement with join other tables
Hello
I have two table is one that contains the xml file, basically, I need to read the xml file, then upgrade to another table based on certain conditions.
```
UPDATE TRCB_XBRL_STG_2 STG 
SET PROFIT = 
  case when xbrl.isconsolidatedacc='Y' and EXTRACTVALUE(XBRL.XBRLFILE,'//PROFIT ', 'xmlns:acra="..."') is not null
  THEN EXTRACTVALUE(XBRL.XBRLFILE,'//PROFIT ', 'xmlns:acra="..."')
  WHEN XBRL.ISCONSOLIDATEDACC='N' AND EXTRACTVALUE(XBRL.XBRLFILE,'//PROFIT ', 'xmlns:acra="..') IS NOT NULL
  THEN extractValue(XBRL.xbrlfile,'//PROFIT ', 'xmlns:acra=".."')
  ELSE STG.PROFIT
  END,
  SET REVENUE= 
  case when xbrl.isconsolidatedacc='Y' and EXTRACTVALUE(XBRL.XBRLFILE,'//REVENUE', 'xmlns:acra="..."') is not null
  THEN EXTRACTVALUE(XBRL.XBRLFILE,'//REVENUE.', 'xmlns:acra="..."')
  WHEN XBRL.ISCONSOLIDATEDACC='N' AND EXTRACTVALUE(XBRL.XBRLFILE,'//REVENUE', 'xmlns:acra="..') IS NOT NULL
  THEN extractValue(XBRL.xbrlfile,'//REVENUE', 'xmlns:acra="REVENUE"')
  ELSE STG.REVENUE
  END,
  ....
  ... (around 100 columns)
FROM  TRCB_XBRL xbrl ,TRCB_XBRL_STG_2 STG 
WHERE STG.XBRL_ID = XBRL.XBRL_ID 
```
About 100 the number of columns, please someone suggest how to use the update with a join of two tables.
Hello

If all the values needed to update a given line from table_x come from the same line of table_y (or in the same row of a result set of a query on a number any of tables), then you can do something like this:
```
UPDATE  table_x  x
SET     (col1, col2, col3, ...)
=     (
         SELECT  NVL (y.col1, x.col1)
         ,         NVL (y.col2, x.col2)
         ,         NVL (y.col3, x.col3)
         FROM    table_y  y
         WHERE   x.pkey   = y.expr
         AND         ...
     )
WHERE   ...
;
```
If the WHERE clause is based on the same line of table_y, then it will be probably easier and more efficient to use the MERGER instead of UPDATE.

I hope that answers your question.
If not, post a small example of data (CREATE TABLE and only relevant columns, INSERT statements) for all of the tables involved and the results desired from these data.
In the case of a DML (UPDATE), for example, the sample data should show what looks like the tables before the DML, and the results will be the content of the or the tables changed after the DML.
Explain, using specific examples, how you get these results from these data.
Always say what version of Oracle you are using (for example, 11.2.0.2.0).
See the FAQ forum {message identifier: = 9360002}

error in the update with a join query
Hi all

IM using oracle 10g on windows.

im not able to use this update query with join...

UPDATE
b
SET
b.is_stud = 1
Of
b Boy
JOIN IN-HOUSE
the relationship r
WE
b.ID = r.boy_id;

Thank you very much...
```
MERGE into emp trg
using(Select distinct b.ename ename,a.empno empno from emp a,
             emp_status b where  a.empno=b.empno) src
on
(trg.empno=src.empno)
when matched then
update
SET trg.name = src.ename;
```

Report of update SQL query with line selector. Update process.
I have a report of update SQL query with the selectors in line.
How to identify line selector in a process update on the page.

I want to update some columns with a value of an area of selection on the page.

With the help of the base:

UPDATE table_name
SET Column1 = value
WHERE some_column = some_value

I would need to do:

UPDATE table_name
SET column1 =: P1_select
WHERE [line selector] =?

Now sure how to identify [line selector] and/or validate it is checked.
Thank you
Bob
Identify the name of the checkbox of the source of the page element, it should be of the fxx format (f01, f02... f50).
Suppose that we f01.
```
for i in 1 .. apex_application.g_f01.count
loop
  UPDATE CONTRACTS
  SET SIP_LOAD_FLAG = :P16_STATUS
  where  =  apex_application.g_f01(i); --i'th checked record' primary key
end loop;
```

Help with sql FULL OUTER JOIN
Hi all
I need assistance with SQL FULL OUTER JOIN.

How to write with FULL OUTER JOIN, the query.
I tried like

I have 3 different queries.

Query q: SELECT emp_id LN.emp_id.
Sum (LN_amount) loan_amt
MY_LON_TAB LN
WHERE LN_amount > 20000
LN.emp_id GROUP;

Query b: SELECT PLN. EMP_ID emp_id,
Sum (PLAN_AMOUNT) plan_amt
FROM PLN MY_PLAN_TAB
where PLAN_AMOUNT <>0
GROUP BY PLN. EMP_ID;

Query C:

SELECT FLX. EMP_ID emp_id,
SUM (PRORATE_AMOUNT) PRORATE_AMT
OF MY_FLX_TAB FLX
WHERE PRORATE_AMOUNT <>0
FLX GROUP. EMP_ID;

Suppose that the different subquery above 3 a, b, c respectively. each subquery with emp_id and respective amount.

like a.emp_id, a.loan_amt
b.emp_id, b.plan_amt
c.emp_id, c.prorate_amt

I show all the empid with their amount respective.
schenario: If an account made, but not vice-versa b
and B have record, but not vice versa c
and a credit record but not vice versa c

first: I have external is associated with the A and B
Second: join external then complete the total outcome of (a & b) with c
but empid c just as empty.

My output is:

emp_id a.loan_amt, b.plan_amt c.prorate_amt
101 5000 null null
102 4500 null 2000
103 6700 null null

How to solve the foregoing to the ANSI (FULL OUTER JOIN) method.
Please suggest me.

Thanks in advance...
PKM
Hello

It is very difficult for anyone to say what you're doing wrong if they do not know what you are doing. Post your code FULL OUTER JOIN.
My best guess is:
```
WITH     a     AS
(
     SELECT     ...      -- What you posted as query a
)
,     b     AS
(
     SELECT     ...      -- What you posted as query b
)
,     c     AS
(
     SELECT     ...      -- What you posted as query c
)
SELECT     COALESCE ( a.emp_id
           , b.emp_id
           , c.emp_id
           )     AS emp_id
,     ...     -- whatever other columns you want
FROM          a
FULL OUTER JOIN     b  ON     b.emp_id =            a.emp_id
FULL OUTER JOIN     c  ON     c.emp_id = COALESCE (a.emp_id, b.emp_id)
;
```
I hope that answers your question.
If not, post a small example (CREATE TABLE and INSERT statements) data for all tables and the results expected from these data (if not what you have already posted).

sql Update query after matching with the string

I am trying to reach the query that updates a table column with the value of the other table, after that he finds an exact match.

So here's the table data and sample to create.

create table code1 
(
    codeid number,
    codedesc varchar2(60)
);

Insert into code1 values ( 1,'R1 CONTRACTS');

Insert into code1 values ( 2,'R2 CONTRACTS');

Insert into code1 values ( 3,'R3 CONTRACTS');

Insert into code1 values ( 4,'R5 CONTRACTS');

Insert into code1 values ( 5,'R9 CONTRACTS');

Insert into code1 values ( 6,'R10 CONTRACTS');

create table table1 
(   
    tablekey number,
    prefix  varchar2(25),
    codedesc    varchar2(60)
);

Insert into table1(tablekey,prefix) values (1,'1001PAC');

Insert into table1(tablekey,prefix) values (2,'1001MXT');

Insert into table1(tablekey,prefix) values (3,'1002PAE');

Insert into table1(tablekey,prefix) values (4,'1003PCS');

Insert into table1(tablekey,prefix) values (5,'1004BDX');

Insert into table1(tablekey,prefix) values (6,'1005PAC');

Insert into table1(tablekey,prefix) values (7,'1006PAC');

Insert into table1(tablekey,prefix) values (8,'1007LDR');

Insert into table1(tablekey,prefix) values (9,'1009LCR');

Insert into table1(tablekey,prefix) values (10,'1010LBR');

Insert into table1(tablekey,prefix) values (11,'ABCDEF');

I'm writing a query that would update the value of column - codedesc (currently Null) of the table1 table: after it is a string of column - table code1 codedesc.

The logic for the match is, - take - 2nd column of table-codedesc code value and get 2 characters. For example, when the string is - R1 CONTRACTS, the string will be 1. (Select substr ("R1 CONTRACTS, 2, 2) of the double). -Output will be 1.

Now,.
Look in table 1 for the 3rd position of the prefix that corresponds to the string returned by the query above. So, if the prefix is '1001PAC', it should look for 2 value of figures from the 3rd position. So, in this case it will be 01. Digitally 01 and 1 are equal, then the match is found for this line in the table1 table, so we will need to update the value of the column codedesc with the "contracts of R1.

    tablekey,    prefix            codedesc    
---------- ------------------------------------------------------------

      1               1001PAC     R1 CONTRACTS    -- Needs to be update with this value. 
      2               1001MXT     R1 CONTRACTS
      3               1002PAE      R2 CONTRACTS
...
      11             ABCDEF                                --Null ( No Need to update when no match found).

SQL> select * from v$version;

BANNER
----------------------------------------------------------------
Oracle Database 10g Release 10.2.0.4.0 - 64bit Production
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production

Appreciate your help.

Hello

You want to avoid TO_NUMBER, given that will cause an error if even a line has a number no (except space) in the wrong place.
Use RTRIM to remove extra spaces at the end of the match_key and LPAD to add '0', if necessary, at the beginning:

MERGE INTO     table1          dst
USING   (
          SELECT  LPAD ( RTRIM ( SUBSTR ( codedesc
                                 , 2
                               , 2
                               )
                          )
                     , 2
                     , '0'
                     )          AS match_key
          ,     codedesc
          FROM     code1
     )               src
ON     (src.match_key     = SUBSTR ( dst.prefix
                       , 3
                     , 2
                     )
     )
WHEN MATCHED THEN UPDATE
     SET     dst.codedesc     = src.codedesc
;

Thanks for posting the CREATE TABLE and INSERT statements; It's very useful!

PRD_ID	A03	FIX_FLT	TXN	DATE
1	A1	1	1	23/10/2010
1	A2	1	1	10/24/2010
1	A3	3	2	10/25/2010
1	A4	3	2	10/26/2010
1	A5	3	1	27/10/2010

PRD_ID	A03	NOTE
110001	A1	NULL VALUE
110001	A2	NULL VALUE
110005	A3	NULL VALUE
110005	A4	NULL VALUE
110001	A5	NULL VALUE

SQL - update with joins

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