Update temp table with alias

I have query like this:
SELECT o1.q_sum, c.q_sum FROM CTE1 c INNER JOIN #order o1 ON o1.col1=c1.col1
It works. I get c.q_sum different from null for every row, while o1.q_sum is null.
But if I write like this:
UPDATE o1 SET o1.q_sum=c.q_sum FROM CTE1 c INNER JOIN #order o1 ON o1.col1=c1.col1
id doesn't work. The all columns q_sum from temp table are still null. How is that possible?

Do not need alias for columns
create table #t (c int)
insert into #t values (1)
update o set c =2 from #t o ---works just fine
create table #t1 (c int)
insert into #t1 values (2)
update o set c =#t1.c from #t o join #t1 on o.c=#t1.c ---works just fine
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
MS SQL optimization: MS SQL Development and Optimization
MS SQL Consulting:
Large scale of database and data cleansing
Remote DBA Services:
Improves MS SQL Database Performance
SQL Server Integration Services:
Business Intelligence

Similar Messages

URGENT update a table with a text that has a single quote in it

Hello, I am trying to update a table with a text that has a single quote in it. I believe I need to use two singles quotes but I am not sure how.
For example:
UPDATE TEST
SET DESCRLONG='Aux fins d'exportations'
WHERE etc...
Should I put 2 singles quotes before the quote in the text?
UPDATE TEST
SET DESCRLONG='Aux fins d'''exportations'
WHERE etc...
Thank you very much :)

The best way depends on the version of Oracle.
But, the quick and universal answer is to use two single quotes
SQL> connect test/test
Connected.
SQL> create table test (descrlong varchar2(128));
Table created.
SQL> insert into test values ('This is a string with a '' single quote');
1 row created.
SQL> select * from test;
DESCRLONG
This is a string with a ' single quote
SQL> update test set descrlong='Aux fins d''exportations'
2 where descrlong like 'T%';
1 row updated.
SQL> select * from test;
DESCRLONG
Aux fins d'exportations
SQL>

Is it possible to update multiple tables with a dynamic form?

I have columns from two tables populating a dynamic form. I am trying to have the form update both tables on submit. I have tried both a linked transaction and a custom transaction but I am not making progress. Only the master table is being updated. Is it possible with ADDT to update two tables with a dynamic form?

I meant
SXMSMSTAT
SXMSSYERR
Thanks.

How can I update the table with a single query for...

I have a table with columns C1 and C2.
C1 C2
A1 null
A1 null
A1 null
A1 null
A2 null
A2 null
A2 null
A3 null
A4 null
A4 null
I want to update my table with a single query so that I would have data like
C1 C2
A1 1
A1 2
A1 3
A1 4
A2 1
A2 2
A2 3
A3 1
A4 1
A4 2
The updated column C2 has the values like serial no grouped on the column C1.

SQL> create table mytable
2 ( c1 varchar2(2)
3 , c2 number(2)
4 )
5 /
Tabel is aangemaakt.
SQL> insert into mytable (c1)
2 select 'A1' from dual union all
3 select 'A1' from dual union all
4 select 'A1' from dual union all
5 select 'A1' from dual union all
6 select 'A2' from dual union all
7 select 'A2' from dual union all
8 select 'A2' from dual union all
9 select 'A3' from dual union all
10 select 'A4' from dual union all
11 select 'A4' from dual
12 /
10 rijen zijn aangemaakt.
SQL> select * from mytable
2 /
C1                                     C2
A1
A1
A1
A1
A2
A2
A2
A3
A4
A4
10 rijen zijn geselecteerd.
SQL> merge into mytable t1
2 using (select c1
3              , row_number() over (partition by c1 order by null) rn
4              , rowid rid
5           from mytable
6        ) t2
7     on (t1.rowid = t2.rid)
8   when matched then
9        update set c2 = rn
10   when not matched then
11        insert values (null,null)
12 /
10 rijen zijn samengevoegd.
SQL> select * from mytable
2 /
C1                                     C2
A1                                      1
A1                                      2
A1                                      3
A1                                      4
A2                                      1
A2                                      2
A2                                      3
A3                                      1
A4                                      1
A4                                      2
10 rijen zijn geselecteerd.Regards,
Rob.

Updating base table with Materialized View's data

Hi,
In order to update base table with MVs data, I am trying real time data transfer between two databases. One is Oracle 8i and other is Oracle 9i. I have created an updatable MV in 9i on a base table using database link. The base table is in 8i. Materialized View log is created in 8i on base table. MV has to be associated to some replication group, but I am not able to create replication group in 9i to which MV has to be associated. The required packages are not installed.
Replication packages are to be used to create replication group are :
/*Create Materialized View replication group*/
BEGIN
DBMS_REPCAT.CREATE_MVIEW_REPGROUP (
gname => 'TEST_MV_GRP',
master => 'TEST_DATA_LINK',
propagation_mode => 'ASYNCHRONOUS');
END;
But above block is giving error.
Can anyone suggest how to resolve this, or are there any other approaches (by not using replication packages) to update base table with MVs data ?
Thanks,
Shailesh

Yes, I created link between two databases and was able to update tables on 8i from 9i database using that link.
The error I am getting while creating replication group is :
ORA-06550
PLS-00201 : identifier 'SYS.DBMS_REPCAT_UTL2@'TEST_DATA_LINK' must be declared
ORA-06550
PLS-00201 : identifier 'SYS.DBMS_REPCAT_UNTRUSTED@'TEST_DATA_LINK' must be declared
ORA-06512 : at "SYS.DBMS_REPCAT_UTL", line 2394
ORA-06512 : at "SYS.DBMS_REPCAT_SNA_UTL", line 1699
ORA-06512 : at "SYS.DBMS_REPCAT_SNA", line 64
ORA-06512 : at "SYS.DBMS_REPCAT", line 1262
Is there any other approach which can be used to update base table with MVs data instead of using replication packages ?
Thanks,
Shailesh

Best way to update a table with disinct values

Hi, i would really appreciate some advise:
I need to reguarly perform a task where i update 1 table with all the new data that has been entered from another table. I cant perform a complete insert as this will create duplicate data every time it runs so the only way i can think of is using cursors as per the script below:
CREATE OR REPLACE PROCEDURE update_new_mem IS
tmpVar NUMBER;
CURSOR c_mem IS
SELECT member_name,member_id
FROM gym.members;
crec c_mem%ROWTYPE;
BEGIN
OPEN c_mem;
LOOP
FETCH c_mem INTO crec;
EXIT WHEN c_mem%NOTFOUND;
BEGIN
UPDATE gym.lifts
SET name = crec.member_name
WHERE member_id = crec.member_id;
EXCEPTION
WHEN NO_DATA_FOUND THEN NULL;
END;
IF SQL%NOTFOUND THEN
BEGIN
INSERT INTO gym.lifts
(name,member_id)
VALUES (crec.member_name,crec.member_id);
END;
END IF;
END LOOP;
CLOSE c_mem;
END update_new_mem;
This method works but is there an easier (faster) way to update another table with new data only?
Many thanks

>
This method works but is there an easier (faster) way to update another table with new data only?
>
Almost anything would be better than that slow-by-slow loop processing.
You don't need a procedure you should just use MERGE for that. See the examples in the MERGE section of the SQL Language doc
http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_9016.htm
MERGE INTO bonuses D
   USING (SELECT employee_id, salary, department_id FROM employees
   WHERE department_id = 80) S
   ON (D.employee_id = S.employee_id)
   WHEN MATCHED THEN UPDATE SET D.bonus = D.bonus + S.salary*.01
     DELETE WHERE (S.salary > 8000)
   WHEN NOT MATCHED THEN INSERT (D.employee_id, D.bonus)
     VALUES (S.employee_id, S.salary*.01)
     WHERE (S.salary <= 8000);

Populating a temp table with multiple records.

I want to populate a temp table with a a set of recs. This table will be used for
crossing/joining with my other tables to pull out data.
ie:
Main table (loc)contains these fields -> county,permit,utme,utmn
Temp table ( tmpid) contains these fields -> countytemp, permittemp
So I will be doing a statement like this once my temp table is populated.
Select l.county,l.permit,l.utme,l.utmn from loc l,tmpid t where l.county=t.countytemp and l.permit=t.permittemp;
So this temp table will basically be a list of ids that can range from a few recs to several hundred.
I want to know is there is way I can poplulate/repopulate it easily using sqlPlus/other by reading in a Ascii file
from client PCs. (besides SQL loader).

HI
let me explain my requirement first,
i need to populate my block with the results from the following sql
SELECT * from contactdet where
(Month=12 and TrType='MTM' and FinYr='04-05' and Userid='SA009' and Clcode='SB001')
UNION
SELECT * from contactdetSUM where (Clcode='SB001' AND CSCODE='AB001')
Pease note. the where clauses i have put are different in each table and my requirement is
the constants values i have put in where clause should be variable (ie. i should be able to put variables like :clcode or so)
I tried us using Query data source type as 'FROM clause query' but it does not allow me to put variables in where clause.
Is there any way out i can do this ? Please help me
Regards
Uday

Updating a table with billion rows

It was an interview question, what's the best way to update a table with 10 billion rows. Give me your suggestions. Thanks in advance.
svk

The best way to answer questions such as this is NOT with a absolute and specific answer. Instead, discuss your strategy for approaching the problem. The first step is to understand your exact requirement. It is surprising how often people
write update statements with an under-qualified where clause. NEVER update a row that does not need to be updated. For example, a statement like:
update mytable set cola = 'ABC' where id in (1, 45, 212);
Assuming id is unique for the table and the specified values exist in the table, we know 3 rows will be updated. Do all of those rows need to be updated? Think about it. If cola is already set to 'ABC' for any of those rows, we could ignore
those rows and make the update more efficient. To do that, you need to add "and cola <> 'ABC' " to the where clause. That is just one example of understanding exactly what you need to do - and doing only that which needs to be done.
Once you understand exactly what you need to do, you need to analyze the impact of the update and identify any potential issues. Updating a lot of rows can take a lot of time and consume large amounts of log and disk space. What else is using
the table? Can you afford to lock the table for the duration of the update? Are there concurrency issues, regardless of whether you update in batches or in one single statement? When using a batch approach, is there an issue if someone runs
a query against the table (i.e., the result is different from that of the same query run after all updates have been completed)? Are you changing something which is included in an index? Are you changing part of the clustered index?
Ultimately, every question you are asked is (or should be) designed to test your problem-solving skills and your skillset. IMO, it is relatively easy to improve your skillset of any particular tool, language, or environment. The other - not so much
and that is why they are more valuable IMO.

UPDATING A TABLE WITH SAME INFO FROM ANOTHER TABLE ON THE SAME DB

0down votefavorite
I am trying to update a table with info from another table on the same db with same table name. I just want the info to be the same , no primary key or constraint involve just a straight replacement of records and I keep getting errors WITH THE TABLE not
being recignize. below is my query:
UPDATE
VNDFIL
SET EOBTYP
= VNDFIL.EOBTYP,
EDI_X12_835_VERSION = VNDFIL.EDI_X12_835_VERSION
FROM
AGERECOVERY
WHERE
VNDFIL.EOBTYP
= VNDFIL.EOBTYP
AND
VNDFIL
.EDI_X12_835_VERSION
= VNDFIL.EDI_X12_835_VERSION

Hi rotary,
If those two same named tables are in the same database then they have to be in different schemas. If you mean they are in the same server instance, then they may be in different databases, besides the "table not being recognized" error,
anyway you should use the fully qualified table names, that is database.Schema.Table(If across instances, ServerName should be prefixed) to avoid the table unrecognized error.
Using Identifiers As Object Names
With the fully qualified names, your update statement can be like below.
UPDATE
db1.schema1.VNDFIL
SET EOBTYP = srcTbl.EOBTYP, EDI_X12_835_VERSION = srcTbl.EDI_X12_835_VERSION
FROM
db1.schema2.VNDFIL srcTbl
WHERE
db1.schema1.VNDFIL.EOBTYP = srcTbl.VNDFIL.EOBTYP AND
db1.schema1.VNDFIL.EDI_X12_835_VERSION = srcTbl.VNDFIL.EDI_X12_835_VERSION
If you have any question, feel free to let me know.
Eric Zhang
TechNet Community Support

How to update two tables with trigger

Hi:
how to update two tables with trigger ?
I have two tables :
(1)ASIA
MI number;
(2)ASIA_P
ID number;
When I insert a new value into the asia.MI ,I also can
insert the same value into the asia_p.id field.
I have write a trigger as follows but it does't work.
create or replace trigger MI_TRG
before insert on asia
for each row
declare
seq number;
begin
select MI_SEQ.Nextval into seq from dual;
:new.MI:=seq;
insert into ASIA_PRO(MI_ID)
values
(seq);
end MI_TRG;
How to realize it ?
thanks
zzm

Why do you say it does not work?

Recordset - updating 2 tables with 1 recordset using application object update record

I have a recordset that uses a field from 2 different tables
with a select statement where clause that joins a userid. I can
display the field’s data just fine. Now I want to use the
Application object “update record” so I can modify
either of the fields. The problem is the Application object
“update record” only allows you to update one table.
How does Dreamweaver mx 2004 allow me to update 2 tables with one
recordset and 1 submit button? Currently using php.
Example of where:
Where member.userid = member_detail.userid
I tried creating the one form with the field from the first
table and that works just fine. I added the other field from the
other table into the form but ofcourse there isn’t any code
that will update the second table so it won’t work.
My application requires me to update alot of fields between 2
tables at the same time.
Does anyone know a way using Dreamweaver mx 2004 to do this?
I don’t have much php experience.

jon-rookie wrote:
> DreamerJim,
>
> I am sorry but I don't think you are correct. I just
can't believe that with
> all the powers to be at Macromedia and now Adobe can't
figure out how to update
> two tables at once. There are millions of db's out there
that require this. I
> spent several hours today perusing lots of posts on the
internet. It seems I
> am not the only one out there that has asked this
question. Unfortunately
> there are no good answers yet to my surprise.
>
> I did find a Dreamweaver extension that does exactly
what I myself and many
> others want. The problem is it is no longer available
unless you purchase a
> bundle of software from Adobe.
>
> I have not looked into it in detail so I am not 100%
sure that is accurate!
>
> Still, alot of php programmers do this all the time
without much trouble. I
> just want to know if Dreamweaver mx 2004 has the
capability if a person knows
> the right steps.
>
> Hopefully a Dreamweaver expert will post something to
let us know for sure.
> Until then I am stuck.
>
Not even CS3 has this built in, you will either have to code
it yourself
or buy the extension you have found. Dreamweaver gives you
basic
features to help you develop applications, but if you want to
do
anything really clever you have to do it yourself.
One thing to consider is maybe creating an SQL view that is
can be
updated. I am pretty sure it exists, then you use the view
instead of
the table in the update behaviour. I have never done it
myself, but I am
sure it can be done.
Steve

Global Temp table with BLOB causing session crash

Hi,
i have a table as follows:
create global temporary table spg_file_import (
name varchar2 (128) constraint sfi_nam_ck not null,
mime_type varchar2 (128),
doc_size number,
dad_charset varchar2 (128),
last_updated date,
content_type varchar2 (128),
content long raw,
blob_content blob
on commit delete rows
this is my 9ias 'document' table thats used to receive uploaded files which i modified to be global temporary.
what i want to do is:
a)upload a text file (xml)
b) convert that file to clob
c) store that file in new permanent table as clob
d) commit (hence delete temp table rows as they are no longer necessary)
to test it i have:
CREATE OR REPLACE procedure daz_html
as
begin
htp.p(' <FORM enctype="multipart/form-data" action="daz_fu" method="POST">');
htp.p(' <p>');
htp.p(' File to upload: <INPUT type="file" name="p_file_in"><br>');
htp.p(' <p><INPUT type="submit">');
htp.p(' </form>');
htp.p('</body>');
htp.p('</html>');
end;
CREATE OR REPLACE procedure daz_fu (
p_file_in varchar2
as
-- BLOB Stream locator
v_raw blob;
v_clob clob;
v_blob_length number;
v_length number;
v_buffer varchar2(32767);
v_pos number := 1;
begin
-- Get xml document from transient 9iAs data store.
select blob_content
into v_raw
from spg_file_import
where name = p_file_in;
-- create temp LOB
dbms_lob.createtemporary(v_clob, false);
-- get BLOB length
v_blob_length := dbms_lob.getlength(v_raw);
loop
-- get length to read. this is set as a max length of 32767
v_length := least((v_blob_length - (v_pos-1)),32767);
-- assign BLOB to a varchar2 buffer in preparation to convert to CLOB
v_buffer := utl_raw.cast_to_varchar2(dbms_lob.substr(v_raw, v_length, v_pos));
-- now write out to the CLOB
dbms_lob.writeappend(v_clob, v_length, v_buffer);
-- increment our position.
v_pos := v_pos + v_length;
-- exit when we are done.
exit when v_pos >= v_blob_length;
end loop;
commit;
htp.p('commit done!');
end;
now if i upload a small text file (about 5kb) it works with no problem.
however if I upload a large text file (say about 1Mb) it crashes oracle with:
Fri, 26 Jul 2002 11:49:24 GMT
ORA-03113: end-of-file on communication channel
DAD name: spgd1
PROCEDURE : daz_fu
USER : spg
URL : http://www.bracknell.bt.co.uk/pls/spgd1/daz_fu
PARAMETERS :
============
p_file_in:
F22210/Document.txt
this produces a large trc file.. the trace file indicates the crash occured on the commit; line
Current RBA:[0x4eb0.117.10]
*** 2002-07-26 12:35:11.857
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [kcblibr_user_found], [4294967295], [2], [12583564], [65], [], [], []
Current SQL statement for this session:
declare
rc__ number;
begin
owa.init_cgi_env(:n__,:nm__,:v__);
htp.HTBUF_LEN := 255;
null;
daz_fu(p_ref_in=>:p_ref_in,p_type_in=>:p_type_in,p_file_in=>:p_file_in);
if (wpg_docload.is_file_download) then
rc__ := 1;
wpg_docload.get_download_file(:doc_info);
null;
commit;
else
rc__ := 0; null;
commit;
owa.get_page(:data__,:ndata__);
end if;
:rc__ := rc__;
end;
----- PL/SQL Call Stack -----
object line object
handle number name
812b1998 42 procedure SPG.DAZ_FU
819dff90 7 anonymous block
----- Call Stack Trace -----
If i reaplce the temporary table with a non-temp table of the same structure i get no problems what-so-ever. Am I doing something that I shouldnt be with global temporary tables?
Thanks.

This is on Oracle 8.1.7.2

Progammatic update a table with a database view in the page

Hi All,
I am using JDev 11g. With FOD database schema, I have one database view Products which comes from two tables Products_Base and Product_Transactions. I created three EOs (ProductEO, ProductsBaseEO, ProductTransactionsEO) and three VOs (ProductVO, ProductsBaseVO, ProductTransactionsVO) based on their EOs respectively.
Here is my scenario. I have an ADF form which is based on the database view Products and is dragged and dropped from Data Controls->ProductVO. When an existing record is submitted, a backing bean method will be called to update the data against the table Products_Base (and the table Product_Transactions at the same time) programmatically. An update method updateProductPrice() is added into the Application Module and published it to UI Client. The submit button in the page is created by directly dragging and dropping Data Controls->updateProductPrice into the page. When I run it, I got the following error message,
Failed to post data to database during "Update": SQL Statement "UPDATE PRODUCTS ProductEO SET COST_PRICE=:1 WHERE PRODUCT_ID=:2".
What I don't understand here is that, in my update method updateProductPrice(), it supposes to update the table Products_Base. But from the error, it appears that it is trying to update the view Products. Can anyone give me a help on what I did wrong here? When I try to debug it, it throws an exception to this line in the method updateProductPrice(),
getDBTransaction().commit();
Here are my codes,
The method which got called in the backing bean
public String cb6_action() {
DCBindingContainer bc = (DCBindingContainer)getBindings();
FacesCtrlAttrsBinding ProductId = (FacesCtrlAttrsBinding)bc.get("ProductId");
FacesCtrlAttrsBinding CostPrice = (FacesCtrlAttrsBinding)bc.get("CostPrice");
JUCtrlActionBinding action =
(JUCtrlActionBinding)bc.findCtrlBinding("updateProductPrice");
DCDataControl dc = action.getDataControl();
ApplicationModule am = (ApplicationModule)dc.getDataProvider();
AppModule service = (AppModule)am;
service.updateProductPrice(new Long(ProductId.toString()), CostPrice.toString());
return null;
public BindingContainer getBindings() {
return BindingContext.getCurrent().getCurrentBindingsEntry();
The update method defined in the Application module (AppModuleImpl.java)
public void updateProductPrice(long productId, String costPrice) {
ProductsBaseEOImpl product = retrieveProductById(productId);
if (product != null) {
try {
product.setCostPrice(new Number(costPrice));
getDBTransaction().commit();
catch (JboException ex) {
getDBTransaction().rollback();
throw ex;
catch (SQLException ex1) {
getDBTransaction().rollback();
private ProductsBaseEOImpl retrieveProductById(long productId) {
EntityDefImpl productDef = ProductsBaseEOImpl.getDefinitionObject();
Key productKey = ProductsBaseEOImpl.createPrimaryKey(new DBSequence(productId));
return (ProductsBaseEOImpl)productDef.findByPrimaryKey(getDBTransaction(),productKey);
Edited by: john wang on Oct 27, 2009 7:14 AM

or
merge into test
using (select rowid rid
            , id
            , sub_id
            , startdate
            , lead (startdate) over (order by id, sub_id) - 1 ed
       from test) x
on (x.rid = test.rowid)
when matched then
   update set end_date = x.ed
;

Update DB table with logic

HI All ,
I have table with records in DB which i need to modify from internal table via job.
if we start from scratch (fill the db table in the first time ) all the records should be valid
(column valid mark as abap_true)
in the next run if new data will come to the table the records should be valid automatically
and if some records are not occur in the second run the record in the table should be not valid
what is the best way to do that .
i give an example
in the first run i have users in the itab ( that update the db)
users    roles   valid_flag
user1    rol1      X
user1    rol2      X
user1    rol3      X
user2    rol1      X
user2    rol2      X
user2    rol3      X
This what i have in the internal table and what should be in the db table also .
in the next run i have in the itab
user1    rol1      X
user1    rol2      X
user1    rol4      X
user2    rol1      X
user2    rol5      X
user2    rol6      X
user3    rol1      X
user3    rol5      X
user3    rol3      X
so after the following run the table should look like .
users    roles   valid_flag
user1    rol1      X
user1    rol2      X
user1    rol3
user1    rol4      X
user2    rol1      X
user2    rol2
user2    rol3
user2    rol5      X
user2    rol6      X
user3    rol1      X
user3    rol5      X
user3    rol3      X
The old records are not deleted there are just mark as not valid and if we have new records
they are inserted to the table with valid flag .
What is the best way to do that .
Regards
Chris

HI Anmol
its not that simple ...
I have table with records in DB which i need to modify from internal table via job.
if we start from scratch (fill the DB table in the first time ) all the records should be valid
(column valid mark as abap_true)
in the next run if new data will come to the table (it_new_usrs_data) the new records should be valid automatically
and if some records are not occur (in it_new_usrs_data ) in the second run the record in the DB table should be not valid .
You can see the the example in my first post .
What i want to avoid the select single in loop because of performance the DB table can store more than 100000 records ...
Do you have diff idea ?
in the first run i have users in the itab ( that update the DB)
Assume that after the first run i this is the DB table that i read in the second run with the select to lt_copy_db
users roles valid_flag
user1 rol1 X
user1 rol2 X
user1 rol3 X
user2 rol1 X
user2 rol2 X
user2 rol3 X
In the next run of the job i have in the internal table it_new_usrs_data
user1 rol1 X
user1 rol2 X
user1 rol4 X
user2 rol1 X
user2 rol5 X
user2 rol6 X
user3 rol1 X
user3 rol5 X
user3 rol3 X
so after the following run the DB table should look like .
The o_ld records are not deleted_ there are just mark as not valid and if we have new records
they are inserted to the table with valid flag .
users roles valid_flag
user1 rol1 X
user1 rol2 X
user1 rol3
user1 rol4 X
user2 rol1 X
user2 rol2
user2 rol3
user2 rol5 X
user2 rol6 X
user3 rol1 X
user3 rol5 X
user3 rol3 X
Thanks
Chris
Edited by: Chris Teb on Jan 6, 2010 10:58 PM

Updating a table with no Primary key

What I am trying to find out is if you can uniquely update a single record in a table that has no primary key. I see no way to reference the record I want, other than specifying all the field values in a where clause. This is a problem though, because if I have another record with the same field values, that will get updated too. (I know its a bad database design, but some people do it and I need to work around it!!!), there are some situations where you would have identical records as far as a where clause is concerned, for example, you cant use a blob in a where clause so that might be where your records differ...
In SQLServer 2000, Enterprise manager throws an error if you have a table with no primary key and duplicate records that you try to update through the GUI. EM uses stored procedures to execute updates, and it rolls back ones which result in more than one update result.
Im not too familiar with Cursors in SQL, only that they are quite slow and not implemented on all DB products. But I think that they might be able to solve the problem (but I dont logically see how).
Can anybody explain this to me?

another record with the same field valuesIf you have two records and all the field values are the same then the records are logically the same anyways, so it shouldn't matter if you update both (one would question why there are two records in the first place.) In other words there is no way, either computationally or manually to tell them apart.
I suspect that that is rather rare. Instead what is more likely is that you are only using some of the fields. So just keep adding fields until it is unique.

Update temp table with alias

Similar Messages

Maybe you are looking for