Can you really update two tables in one SQL statement

Ok a post in the forum has got me awefully curious:
Can you update two tables in one update statement i.e something like this
update table a , b
set b.<column> = something
a.<column> = something
Something to this effect.
If you are curious to know what post I am talking about it is called "updating a single row"

No. You can only update one table in one SQL statement.

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Joining two tables using PL/SQL

here i am trying to join two tables can any one tell me what is wrong with this syntex
CREATE OR REPLACE PROCEDURE test IS
CURSOR c1 IS SELECT seq,fname,lname from t1;
CURSOR c2 IS SELECT seq1,q,a from t2;
userjob number;
BEGIN
     OPEN c1;
insert into t3 values(c1.seq,c1.fname,c1.lname);
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FOR c1rec IN c2 LOOP
IF (c1rec.seq=c1.seq and c1rec.q1='why') THEN
insert into t3 values(c1rec.q1,c1rec.a1);
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You should always fetch a cursor before using it's values. All columns in the select should be fetched into variables or a record-variable. You can't refer to the cursor-columns values with c1.seq etc.
r1 c1%rowtype;
l_found boolean;
BEGIN
OPEN c1;
FETCH c1 INTO r1;
insert into t3 values(r1.seq,r1.fname,r1.lname);
l_found := c1%found;
close c1;
if l_found
then
It is also better to close the cursor and check if the select resulted in a row. With this code you will only retrieve one row even if the select will result in multiple rows.
But I agree with all the others that this can probably be done more efficiently with one SQL statement.

How to use one form to update two tables

How can I do that? HTMLDB wizard or form on table doesn't give me an option to use more than one table in a form or I don't know about it. I created new process which redirects the form to another page after submitting the form. On the second page I created new process which uses the same variables from the previous form page. This process runs on page load before header but it is just not working right.
So, what is the proper way to update two tables with the same form fields?

Hello Vikas,
"The Automatic Row Fetch and Automatic DML processes are a pair, you can't have one without the other."
Are you sure about that? I have a page, which populate some of the items from TableA, using manual select statement, and after the user input, save some of it in TableB, using Automatic DML. No ARF in this process and it seems to work just fine. Come to think of it, what about a simple form, populated entirely by the user input, and then being saved to the db, using Automatic DML? No ARF here also.
For the problem in hand, if you can't have more then one Automatic DML per page, I think that the simplest solution will be to define a pl/sql process, with two INSERT statement to the two different tables.
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Update SAME column name in two tables from ONE query

Dear All Seniors
Please tell me is it possible to update a same column name in two tables.
I have two tables in same schema
(1)table name
pem.igp_parent
column name
igp_no.
igp_type
(2)table name
pem.igp_child
column name
igp_no.
igp_type
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thanks
yassen

You want to update the data from what to what? Where is the new data coming from?
If you are trying to put the same data in two different tables, that strongly implies that you have a normalization problem that needs to be addressed.
Why do you want a single query rather than updating each table in turn? Can you join the two target tables to produce a key-preserved view?
Justin

How can update two rows in one query?

How can update two rows in one query?
Edited by: OracleM on May 4, 2009 12:16 AM

What do you mean with "two rows"? May be two columns??
If the where clause of UPDATE query matches two rows, then it will update two rows. If you want to update two columns, then add column names to your query
UPDATE your_table SET col1=value1, col2=value2 WHERE your_where_clause- - - - - - - - - - - - - - - - - - - - -
Kamran Agayev A. (10g OCP)
http://kamranagayev.wordpress.com
[Step by Step install Oracle on Linux and Automate the installation using Shell Script |http://kamranagayev.wordpress.com/2009/05/01/step-by-step-installing-oracle-database-10g-release-2-on-linux-centos-and-automate-the-installation-using-linux-shell-script/]

How to update two tables in a single call using JDBC Sender adapter

Hello All,
The scenario is, database entries have to be selected from two tables and at the same time those tables have to be udpated with the flag.
We are using JDBC sender adapter and in Select Query, we are fetching the data by joinin the two tables.
Update Statemtent: We can only update one table using this statement.
Is it possible to update two tables using the Update Statement without using Stored Procedures.
Let me know.
Regards,
Sreenivas.

Hi Sreenivas,
> Is it possible to update two tables using the Update Statement without using Stored Procedures.
Yes its possible through join statement
Check this links
Update in JDBC Sender adapter for more than one table
data from 2 tables for jdbc sender adapter
Regards
Ramesh

Collapsing two tables into one table or one queue

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No version number and no clarity of what you are trying to accomplish.
Without knowing that the problem is a nail ... I'd hardly be recommending using a hammer.

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
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seq number;
begin
select MI_SEQ.Nextval into seq from dual;
:new.MI:=seq;
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zzm

Why do you say it does not work?

How To Update two tables at once

Hi,
I have to join two tables for an update. Is it possible to update both tables in one update statement? Thank you.
UPDATE table_a a, table_b b
SET
a.name = 'Tom',
b.city = 'New York'
WHERE
a.id = b.id

Is it possible to update both tables in one update statement? That's not possible.

Update multi tables in one page

I need to create a page that allow users to update ( no insert, no delete) 2 tables 1 view.
home page users enter a record_no, then I pass the rec_no to p2 which has 3 regions. Each region points to one table\view respectively. All tables\view are linked by a same rec_no. Each region has a form on table with buttons: cancel,save.
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following issues arise
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Can you help ? My brain is fried now.
Thanks.
Tai

Hello Tai,
I understand your frustration. Sometimes, something that should seem easy turns out to be so difficult. In this case, what you can do is this:
1. Get rid of the buttons in the second and third region. You can drive your updates all from only one set of buttons.
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I hope this helps,
Don.
You can reward this reply by marking it as either Helpful or Correct :)

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Using table comparison transform can you point to multiple tables as target tables?
Thank you very much for the helpful info.

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Saving data into two tables "in one transaction"

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My scenario is the following: SAP PI receives message containing some data (header and MULTIPLE details data in one message) and has to transfere this data to a database.
In the database there are two tables for storing the data contained in the message: one for HEADER data and one for DETAILS data. I need to save all the data (header and MULTIPLE details data) into these two tables "in one transaction" and roll back saving of HEADER data and DETAILS data if saving of some DETAILS data has failed.
I am going to use receiver JDBC adapter for this purpose.
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<root>
<StatementName1>
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    <table>HEADER_table</table>
    <access>
    <col1>val1</col1>
    <col2>val2</col2>
    </access>
    <key1>
    <col1>val1</col1>
    </key1>
    </dbTableName>
</StatementName1>
<StatementName2>
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    <table>DETAILS_table</table>
    <access>
    <col1>val1</col1>
    <col2>val3</col2>
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    <key1>
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    </key1>
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</StatementName2>
<StatementName3>
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    </key1>
    </dbTableName>
</StatementName3>
</root>
2. How to roll back saving of HEADER data in the case of saving of DETAILS data has failed?
3. What will be the response structure returned by database look like in the case of success?
Thanks,
Vika

I guess the response in my case will be something as following?
<response>
<Statement1_response>
<row>
<update_count>1</update_count>
<insert_count>0</insert_count>
</row>
</Statement1_response>
<Statement2_response>
<row>
<update_count>0</update_count>
<insert_count>1</insert_count>
</row>
<row>
<update_count>0</update_count>
<insert_count>1</insert_count>
</row>
</Statement2_response>
</response>
Vika

Delete from two tables in one statement

Hi,
Is there a way to delete from two tables in one statement?
Actually I have two tables:
1. Base table (id, name, age)
2. Person table (id, city, street)
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I would like to delete using something like a join:
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Thanks
dyahav

Hi,
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( supplier_id numeric(10) not null,
supplier_name varchar2(50) not null,
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supplier_id numeric(10) not null,
CONSTRAINT fk_supplier
FOREIGN KEY (supplier_id)
REFERENCES supplier(supplier_id)
ON DELETE CASCADE
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Can you really update two tables in one SQL statement

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