Nested tables questions

I ve been using nested tables ( with the 'index by' clause ).
I understand that the created array is stored in the RAM memory ( and not in the database files ).
1. Does this mean that my program might not run one day when the machine is running low on RAM ?
2. If yes, will there be an exception or something ?
3. I understand that the memory is freed when the 'session ends'. When does my session end ? ( Is it when my PROCEDURE/function ends or is it when I quit sqlplus )
4. Are nested tables/collections thread safe ?
If I declare a nested table within the procedure, and if the procedure is called simultaneously by two clients, will there be a problem ?
Thanks

1. Yes
2. Yes, possibly "PLS-00996: out of memory" although there may be others
3. PL/SQL does garbage collection at various times, including when your session ends (i.e. when you disconnect from Oracle) and when a variable goes out of scope (e.g. when a procedure ends). I don't think the full list of rules is documented.
4. Yes, although I'm not sure what happens in connection pooling.

Similar Messages

Join between two nested tables question

Hi. I have two nested tables with a join statement drawing info from both. The query looks like this:
select to_char(N.LASTLOGONDATE, 'YYYY'), count(n.u_name), A.ACCOUNTDISABLED
from coclastlogon, TABLE(COCLASTLOGON.RLLS) N , userpwaudit, TABLE(USERPWAUDIT.PVSS) A
where N.U_NAME = A.USERNAME (+)
and coclastlogon.AUDITID = 12
and userpwaudit.AUDITID = 12
group by to_char(N.LASTLOGONDATE, 'YYYY'), A.ACCOUNTDISABLED
The query runs fine except its not generating non-matching values from the A.ACCOUNTDISABLED field. It is my understanding that placing the (+) will instruct the statement to add these columns to the result. If I use the same query with the same unnested data it produces the non-matching result set as I require.
My feeling is there might be an issue with the way I've set my "FROM" but I'm not too sure how to proceed.
Any suggestions?
Thanks!

You're right, by non-matching I mean null values.
Running the query I wrote returns this result:
(N.LASTLOGONDATE,'YYYY') / COUNT(N.U_NAME) / ACCOUNTDISABLED
2005 3408 No
2002 1 Yes
Running the query using un-nested data returns this result (this is what I'm after):
(N.LASTLOGONDATE,'YYYY') /COUNT(N.U_NAME) /ACCOUNTDISABLED
2005 3408 No
2002 1 Yes
2005 27 -
As you can see, the value I'm after is the one with ACCOUNTDISABLED 'null' value. Essentially, "coclastlogon, TABLE(COCLASTLOGON.RLLS) N" has more values in the N.U_NAME column than the table it is being joined to. That is why I added the (+). I just need to account for all values in TABLE(COCLASTLOGON.RLLS) than just the ones that find a join with "userpwaudit, TABLE(USERPWAUDIT.PVSS) A"

Detail Reveal/Nested Table Questions

Hey Folks,
I have a table that was generated with Jheadstart. Within this table is a nested table with a master-detail relationship to the outer table. It was generated using the 'Detail Reveal' function of Jheadstart, so it renders a 'show' hyperlink to show the associated details with the master record. The problem I am having is when the user navigates back to this page, the detail reveal is not working properly. Say the user shows the a set of details, click continue, decided they selected they wrong set, hits cancel. The cancel does a rollback then navigates back to the nested table page. What happens is this: the FIRST set of details is always shown, except under the master record that was originally selected! If the user shows then hides the details, the problem goes away. So for example, if the user had originally shown the details of the third master record, hit continue, then hit cancel, the details from the first master record would be incorrectly shown under the third master record.
What is causing this? How can I fix this? Ideally I would like to have it HIDE all detail when the user cancels back to the page.
I did some snooping around in the JHSDataAction class, and it looks like a request param named 'value' determines which detail is shown, but I have been unsuccessful in trying to manipulate this parameter to get it to do what I want.
Also, how could I manipulate it to show all the details if the master table only had one record? I already have a dataAction that determines if the master query returned a single hit or not, I just don't know what I can do with the request object to force it to show the detail lines in the case that it does....
Help?
Thanks,
-Chris

Oh yea, and i'm using Jdev 10.1.2 and Jheadstart 10.1.2.2 (build 32), using struts and UIX.

UserDefined Type Question - Nested Table Attribute

I have a question about some types I'm trying to create and whether or not it's even possible .....
Here's the background ...
I have the following type i created :
create type asset_stat (
stat_current varchar2(50),
stat_change_date date,
stat_change_user varchar2(30)
All this type does is simply put a user and date/time stamp when constructed. I want to track status changes for historical tracking.
Then I want to create a nested table type of the above type as follows:
create type asset_stat_nt as table of asset_stat
Then, I have another type i've created which will have the nested table type created above as an attribute.
create type asset (
asset_name varchar2(30),
asset_type varchar2(3),
asset_stat asset_stat_nt
Now, the constructor for this asset type is defined like this: ( this is where i get lost)
constructor function asset (
asset_nm IN varchar2,
asset_type_cd in varchar2,
asset_stat_cd in varchar2 ) return self as result is
begin
self.asset_nm := asset_nm
self.asset_type := asset_type_cd ;
self.asset_stat := asset_stat_nt(asset_stat_cd);
return;
end;
I just created a table of asset type and tried to do an insert and I'm getting an error related to the line where the nested type is being assigned. Is this possible? If so is my syntax completely off? I'm not quite sure how to set values for the nested type because i want to keep all records of change. Any help would be greatly appreciated.
thanks

the block of code shows that asset_stat_nt is the type assigned to asset_stat inside the type asset as shown below
create type asset (
asset_name varchar2(30),
asset_type varchar2(3),
asset_stat asset_stat_nt
I guess for the following block of code, the line with the arrows should be given like shown below in bold letters
constructor function asset (
asset_nm IN varchar2,
asset_type_cd in varchar2,
asset_stat_cd in varchar2 ) return self as result is
begin
self.asset_nm := asset_nm
self.asset_type := asset_type_cd ;
self.asset_stat := asset_stat_nt(asset_stat_cd);return;
end;
[b][b]self.asset_stat := asset(asset_stat_nt(asset_stat_cd));
I am not pretty sure.......try it anyway.....if it works....good to you

Simple question aboout PL/SQL nested tables

Hello, my question is about nested tables. Suppose I have a nested table:
TYPE int_array IS TABLE OF INT;
v_int_array int_array;
Is there a built in function to allow me to search v_int_array for a specific integer value?
George

Use MEMBER OF operator:
declare
    TYPE int_array IS TABLE OF INT;
    v_int_array int_array := int_array(1,2,3,4,5);
begin
    if 1 member of v_int_array
      then
        dbms_output.put_line('Found it!');
    end if;
end;
Found it!
PL/SQL procedure successfully completed.
SQL> SY.

Object Modelling Question: How do I create multiple nested table columns in one table

Hi there,
I have a XML doc which is as follows:
<PERSON>
<ADDRESSLIST>
<ADDRESS>111, Hamilton Ave </ADDRESS>
<ADDRESS>222, Cambell Ave </ADDRESS>
</ADDRESSLIST>
<PHONELIST>
<PHONENO>4085551212 </PHONENO>
<PHONENO>6505551212</PHONENO>
</PHONELIST>
</PERSON>
I need a table that looks as follows:
Create table person
(addresslist address_table,
phonelist phone_table
I would like to create a table called person with columns addresslist and phonelist. Each defined as object type table of address and table of phones.
Can anybody please tell me how can I do this.
I have seen that there can only be one nested table per table. If so, how do we do this.
Thanks so much
Pramod

pelle.k wrote:
peets wrote:Hehe because it's less typing!
Good one!
Also, it's by far the more dynamic method.
If you want to get pedantic, it's also far less efficient in terms of execution time: each iteration of the loop forks a new process, whereas using a single mkdir command forks only once. The "best" way is the curly-braces method demonstrated above by chimeric.

Question about nested tables

Hallo everyone,
I have a problem with nested tables. I can create them and insert data with the sql command line. It is not possible in the browser.
But I cannot view the values - neither in the command line nor in the browser.
In the browser, oracle shows this error-message:
'ORA-01031 insufficient privileges' (I have admin rights!!)
Is it possible that Oracle Express Edition doesn't support all object-oriented features?
Thanks in advance

I downloaded the latest apex 3.0.1, but itshouldn't
be used with Oracle XE according to theinstallation
guide.Where did you read that? There's even a XE releated
install guide:
[url=http://www.oracle.com/technology/products/databas
e/application_express/html/3.0.1_and_xe.html]Oracle
Database XE and Application Express 3.0.1C.
when I downloaded apex, the documentation in the database requirement (2.1) says:
"Note:
Do not install this version of Oracle Application Express on Oracle Database Express Edition (Oracle Database XE)."
Maybe the documentation is not up to date, because I downloaded last week

Adobe Livecycle Designer Question (relationships between nested tables)

Hi,
I am currently working on a PDF document using nested tables.
I have already created the relationships between the nested tables in the context area.
However, I do not know how to create the same relationships between the nested tables in the hierarchy (layout.)
Any and all help will be greatly appreciated.
Thank You.

Hello John,
We define data in the context area only. The defined data in the context area will be available in the Layout area in the hierachy model(Data View tab).
In the Layout tab, we just need to design the form.
Hope I am clear. Please let us know if you want more details.
Thanks
Ramakrishna

Associative Array to Nested Table: Anything faster?

(First Post! Some ASP.NET references, but I think this really is a PL/SQL question)
I work on a team that runs an Oracle instance for data warehousing and reporting along with an ASP.NET based website for display.
Sometimes, I may want to have many parameters come in and only show records that match those parameters. For example, I may want to show all employees who are Managers or Developers and not show employees who are Accountants or Scientists. Typically, I send a parameter into my PL/SQL stored procedures as an associative array (as declared in my package specification). Once in the procedure, I convert that associative array into another associative array (as a user created SQL type) and then I'm able to use it like a nested table to join on.
My question is: in your experience, is there any way to get around this type conversion or another faster way?
For example:
-- Create the sql type
CREATE OR REPLACE TYPE DIM.sql_string_table AS TABLE OF VARCHAR2(255);
--pretend that this works and it's in a package body
declare
type string_table is table of varchar2(255) index by binary_integer;
l_job_types string_table; -- Keep in mind I'd normally be sending this via ASP.NET
l_job_types_nested sql_string_table := sql_string_table();
begin
-- Add some data
l_job_types(0) := 'Manager';
l_job_types(1) := 'Developer';
-- Do the conversion
for i in l_job_types.first .. l_job_types.last
loop
l_job_types_nested.extend;
l_job_types_nested(l_job_types_nested.count) := l_job_types(i);
end loop;
-- get some data out (we're pretending)
open fake_ref_cursor for
Select e.*
from employees e,
the(select cast(l_job_types_nested as sql_string_table) from dual) jobs_types_wanted
where e.type = value(jobs_types_wanted);
end;
The result would be all employees whose have a type that was input into the l_job_types associatve array.
See: http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:110612348061
for additional reference

> I convert that associative array into another associative array (as a user created SQL type)
Just so we're clear, Oracle use the term 'associative array' to refer to the exclusively PL/SQL sparse collection type ("table of x index by pls_integer" etc) as distinct from the common nested table collection type.
Also I could be wrong but I think
SELECT ..
FROM the(select cast(l_job_types_nested as sql_string_table) from dual) jobs_types_wantedis generally the same as
SELECT ..
FROM TABLE(l_job_types_nested) jobs_types_wantedthough "SELECT *" and implicitly collection casting don't always mix. The "THE()" syntax is deprecated.

Nested Tables in Visual Composer 7.0

Gurus,
When I am trying to drag and drop the webservice in the Iview it gives a warning message "Port 'Salesorder' was omitted because it includes nested tables which are not presently supported by Visual Composer" . My question is how to use this webservice which has nested table in one of the input port. Is there any work around or can you suggest me any other way we can call this webservice "ECC_SalesOrderCTRC1".

Hi,
Nested tables are not supported by this version of VC.
This is an architectural problem and I don't know of any work around for it (other than changing the WS).
Nested tables are and will be supported in VC CE (7.1).
Regards,
Shay

Problem in creating a nested table

Hi i am working on Oracle 10g and cleint is sqlplus.
Now while creating a nested table following error occured.
This is the script for your reference.:
CREATE OR REPLACE TYPE sec_pwd_hist_table
AS
TABLE OF sec_pwd_history_type
index by binary_integer
Warning: Type created with compilation errors.
SQL> show error
Errors for TYPE SEC_PWD_HIST_TABLE:
LINE/COL ERROR
0/0 PL/SQL: Compilation unit analysis terminated
3/1 PLS-00355: use of pl/sql table not allowed in this context
Please help on this issue
Regards,
Vikas Kumar

> but i want to know just one thing why its working when i am removing "INDEX BY binaty_integer"
Vikas, I trust I answered that question when I said? :
"Do not confuse the two. Do not attempt to use PL/SQL array struct definition syntax in the SQL engine for defining an ADT collection. Which is why I referred you to the manual to see how an ADT is defined in SQL."
In other words, you are trying to apply a PL/SQL concept and PL/SQL syntax to a definition of a data type in SQL.
SQL is not PL/SQL.
SQL ADTs are not PL/SQL arrays/tables.
It is not even a syntax issue - it is a basic concept issue. SQL does not support PL/SQL arrays/tables. Period.

Error while create trigger on for nested table

I want to insert a record into a nested table.For this, I created a view for the table, which includes the nested table.It told me ORA-25015 cannot perform DML on this nested table view column.So I created a trigger for the nested table.However, it told me that ORA-25010 Invalid nested table column name in nested table clause.I think my nested table is valid, i don't konw why did it appear this kind of problem?
My table is
CREATE TABLE ENT
ID NUMBER(7) NOT NULL,
CREATE_DATE VARCHAR2(11 BYTE),
UPDATE_DATE VARCHAR2(11 BYTE),
DEPTS VARRAY_DEPT_SEQ
CREATE OR REPLACE
TYPE DEPT AS OBJECT
ID NUMBER(8),
ANCHOR VARCHAR2(20),
CREATE OR REPLACE
TYPE " VARRAY_DEPT_SEQ" as varray(930) of DEPT
CREATE OR REPLACE VIEW ENT_NESTED_VIEW
(ID, CREATE_DATE, UPDATE_DATE, DEPTS)
AS
select e.ID,cast(multiset(select r.id,r.anchor from ent z, table(z.depts) r where z.ID=e.ID )as varray_dept_seq)
FROM ENT e
Then when I created trigger;
CREATE OR REPLACE TRIGGER EMP.ENT_NESTED_TRI
INSTEAD OF INSERT
ON NESTED TABLE DEPTS OF EMP.ENT_NESTED_VIEW
REFERENCING NEW AS New OLD AS Old PARENT AS Parent
FOR EACH ROW
BEGIN
END ;
I met the problem: ORA-25010 Invalid nested table column name in nested table clause
Could you please tell me the reason
Thank you!
My insert SQL is:
insert into table(select depts from ent_nested_view where id=1856) values(varray_dept_seq(dept(255687,'AF58743')))
Message was edited by:
user589751

Hi,TongucY
Compared with the "Referencing Clause with Nested Tables" part of this reference -
http://psoug.org/reference/instead_of_trigger.html, I found the answer of this
quesion. That is "CREATE OR REPLACE TYPE " VARRAY_DEPT_SEQ" as[b] varray(930) of
DEPT". It turns to be a varying array, not a nested table. It should be "CREATE OR
REPLACE TYPE " VARRAY_DEPT_SEQ" as table of DEPT". That is OK. Thank you very
much!
While there is an another question, if I create a varying array like" CREATE OR
REPLACE TYPE " VARRAY_DEPT_SEQ" as[b] varray(930) of DEPT " and I want to insert
a record into the varying array, which the record has been existed.The method that
create a view and a trigger seems not to be effective.
For instance,
There is a record in the table
ID:1020
CREATE_DATE:2005-10-20
UPDATE_DATE:2007-2-11
DETPS: ((10225,AMY))
I want to ask this record to be
ID:1020
CREATE_DATE:2005-10-20
UPDATE_DATE:2007-2-11
DETPS: ((10225,AMY),(10558,TOM))
How should I do?
Could you please help me?
Best regards.
Message was edited by:
user589751

Nested table for PO Output (Item texts) - trying again.

Hi experts
I posted this question already, but the formatting disappeared, so trying again.
I have created a PDF version of the Purchase Order output. Everything works well, except for the last step - a nested table where I want to display Item texts from the PO for every item.
The steps I followed:
1. In the Interface, I read the item texts, and placed them in an internal table, where the table has a field EBELP (item number) and a field for the text. So, for a PO with 5 items, where 2 items have texts, the table might look like this:
     00010    First line of text for item 10.
     00010    Second line of text for item 10.
     00040    Only line of text for item 40.
2. In the context of the form, I put this table 'under' the existing 'ITEM' entry. In other words, for every item, the texts must be displayed. Obviously I then put in an entry under the WHERE CONDITIONS to say that EBELP = ITEM-EBELP, otherwise it would repeat every line of text for every item.
The problem is that it does not behave quite as I expected. It currently prints:
Item 10 information
         First line of text for item 10.
         Second line of text for item 10.
Item 20 information
         Only line of text for item 40.
Item 30 information
Item 40 information
Item 50 information
Where it should print:
Item 10 information
         First line of text for item 10.
         Second line of text for item 10.
Item 20 information
Item 30 information
+Item 40 information+
         Only line of text for item 40.
Item 50 information
In other words, it simply 'breaks' on change of EBELP, and moves the text to the next line, as opposed to the correct line.
I tried debugging, and it does appear to be doing things in the right order, but it is still doing the output incorrectly. I also searched the forums for similar problems, but I could not find a solution to the problem I am experiencing.
I also put 'dummy' (empty) rows into the table - that fixes it, but then it messes with my layout and I get something like:
Item 10 information
         First line of text for item 10.
         Second line of text for item 10.
Item 20 information
Item 30 information
Item 40 information
         Only line of text for item 40.
Item 50 information
In the above, I don't want the gaps where the empty rows are.
Please advise?
Thanks and kind regards
Casper

Reposted without formatting...
I have created a PDF version of the Purchase Order output. Everything works well, except for the last step - a nested table where I want to display Item texts from the PO for every item.
The steps I followed:
1. In the Interface, I read the item texts, and placed them in an internal table, where the table has a field EBELP (item number) and a field for the text. So, for a PO with 5 items, where 2 items have texts, the table might look like this:
     00010    First line of text for item 10.
     00010    Second line of text for item 10.
     00040    Only line of text for item 40.
2. In the context of the form, I put this table 'under' the existing 'ITEM' entry. In other words, for every item, the texts must be displayed. Obviously I then put in an entry under the WHERE CONDITIONS to say that EBELP = ITEM-EBELP, otherwise it would repeat every line of text for every item.
The problem is that it does not behave quite as I expected. It currently prints:
Item 10 information
         First line of text for item 10.
         Second line of text for item 10.
Item 20 information
         Only line of text for item 40.
Item 30 information
Item 40 information
Item 50 information
Where it should print:
Item 10 information
         First line of text for item 10.
         Second line of text for item 10.
Item 20 information
Item 30 information
Item 40 information
         Only line of text for item 40.
Item 50 information
In other words, it simply 'breaks' on change of EBELP, and moves the text to the next line, as opposed to the correct line.
I tried debugging, and it does appear to be doing things in the right order, but it is still doing the output incorrectly. I also searched the forums for similar problems, but I could not find a solution to the problem I am experiencing.
I also put 'dummy' (empty) rows into the table - that fixes it, but then it messes with my layout and I get something like:
Item 10 information
         First line of text for item 10.
         Second line of text for item 10.
Item 20 information
Item 30 information
Item 40 information
         Only line of text for item 40.
Item 50 information
In the above, I don't want the gaps where the empty rows are.
Please advise?
Thanks and kind regards
Casper

Trigger how to get new and old value for nested table column?

Hi,
I have created a nested table based on the following details:
CREATE TYPE typ_item AS OBJECT --create object
(prodid NUMBER(5),
price NUMBER(7,2) )
CREATE TYPE typ_item_nst -- define nested table type
AS TABLE OF typ_item
CREATE TABLE pOrder ( -- create database table
ordid NUMBER(5),
supplier NUMBER(5),
requester NUMBER(4),
ordered DATE,
items typ_item_nst)
NESTED TABLE items STORE AS item_stor_tab
INSERT INTO pOrder
VALUES (800, 80, 8000, sysdate,
typ_item_nst (typ_item (88, 888)));
Now I would like to create a trigger on table pOrder for after insert or update or delete
and I would like to track the new and old value for the columns inside nested table.
Can anybody direct me how to do it?
I would like to know the sytax for it like:
declare
x number;
begin
x := :new.nestedtablecolumn;--how to get the new and old value from nested table columns
end;
Hope my question is clear.
Thanks,
Lavan

Hi,
Try like this:
CREATE OR REPLACE TRIGGER PORDER_I
BEFORE INSERT
ON PORDER
REFERENCING OLD AS old NEW AS new
FOR EACH ROW
DECLARE
items_new typ_item_nst;
ordid_NEW NUMBER;
BEGIN
FOR i IN :new.items.FIRST .. :new.items.LAST LOOP -- For first to last element
DBMS_OUTPUT.PUT_LINE(':new.items(' || I || ').prodid: ' || :new.items(I).prodid );
DBMS_OUTPUT.PUT_LINE(':new.items(' || I || ').price: ' || :new.items(I).price );
END LOOP;
END;Regards,
Peter

Using SQL with Nested Table

Hi ,
Please assist as how can we do this thing
i have a nested table of object type
create or replace type a1 as object
a number,
b varchar2(30),
region varchar2(30)
create type a1_array s table of a1;
declare
v_a1 a1;
v_a1_array a1_array:=a1_array();
begin
v_a1= a1(1, '1' , 'AUS');
v_a1_array.EXTEND;
v_a1_array(1):=v_a1;
v_a1= a1(2, '2' , 'AUS');
v_a1_array.EXTEND;
v_a1_array(2):=v_a1;
v_a1= a1(3, '3' , 'NAM');
v_a1_array.EXTEND;
v_a1_array(3):=v_a1;
end;
Now, i have v_a1_array having 3 rows 2 with AUS region and one with NAM region.
Using SQL can i extract only 'AUS' rows and fetch in ARRAY OF TYPE v_a1_array (using Where clause and Table () functions )
Any help will be highly appreciated. Please assist. I have oracle 11g
Thanks

Hi,
GPU has already shown you how to do. I will just modify my original one:
SQL*Plus: Release 11.2.0.1.0 Production on Thu Aug 22 22:14:42 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> set serveroutput on
SQL>
SQL> DECLARE
2     v_a1           a1;
3     v_a1_array     a1_array := a1_array ();
4     v_a1_array2    a1_array;
5 BEGIN
6     v_a1 := a1 (1, '1', 'AUS');
7     v_a1_array.EXTEND;
8     v_a1_array (1) := v_a1;
9     v_a1 := a1 (2, '2', 'AUS');
10     v_a1_array.EXTEND;
11     v_a1_array (2) := v_a1;
12     v_a1 := a1 (3, '3', 'NAM');
13     v_a1_array.EXTEND;
14     v_a1_array (3) := v_a1;
15
16     SELECT a1(a, b, region)
17       BULK COLLECT INTO v_a1_array2
18       FROM TABLE (v_a1_array)
19      WHERE region = 'AUS';
20
21     FOR c1 IN (SELECT *
22                  FROM TABLE (v_a1_array2))
23     LOOP
24        DBMS_OUTPUT.put_line ('A='||c1.a||', B='||c1.b||', REGION='||c1.region);
25     END LOOP;
26 END;
27 /
A=1, B=1, REGION=AUS
A=2, B=2, REGION=AUS
PL/SQL procedure successfully completed.
If you consider your question answered, please mark this thread as answered.
Regards.
Alberto

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