One to Many table join -- concat field per record grouped by id

Post Author: wm5
CA Forum: Formula
Hello,
I am using Crystal Reports XI and have two tables that have a one to many relationship and are joined by an JobID (number).
Below is a sample with relative fields for each table.
job_table: JobID (number), Manager (text), Status (text)
jobaudit_table : JobAuditID (number), JobID (Number), FormID (Number)
There is a one to many relationship with jobaudit_table having multiple records for each JobID in job_table.
I have created a Group Header using the job_table.JobID and suppressed the detail section.
In the group header for each JobID I display the JobID, Manager, Status. I also use the below formula to determine if any records in the jobaudit_table has a record where FormID = 90. If so, I display "Yes". If not, "No".
So my report currently looks like.
JobID     Manager     Status     Audit Performed
1           Manager 1 Closed           N
2          Manager 2   Closed           Y
Here are the formula's I use to determine if any records in jobaudit_table contains a record where FormID = 90.
@ja90exists
if {jobaudit_table.FormID} = 90 then    1else    0;
if sum({@ja90exists},{job_table.JobID}) = 0 then    "No"else    "Yes";
Everything so far works fine. What I would like to do now is add a hyperlink to a script to view the job audit when in the above report the "Audit Performed" column is "Yes"
So Report is now:
JobID     Manager     Status     Audit Performed
1           Manager 1 Closed           N
2          Manager 2   Closed           Y (hyperlink to view audit)
I cannot figure out how to gather the valid JobAuditIDs where FormID = 90 grouped by JobID to be used in the Group Heading section of the report.
Also, it is unlikely, but possible that more than one job_audit record exists with FormID = 90 per JobID. So, my hyperlink could look like http://mysite.com/viewjobaudit.aspx?jobid=[jobaudit_table.JobAuditID],[jobaudit_table.JobAuditID] .
Thanks for any help. And if this post is not clear let me know and I will clarify.
wm5

Post Author: bettername
CA Forum: Formula
Although I can't think of a way to get multiple hyperlinks, this should be a start. It (should) hyperlink to the last job/audit in the group that formID of 90. Oh, I assumed that the hyperlink should have been xxxx...jobID,jobAuditID!
I think there may be a way of getting hyperlinks to every "90" record, but that will involve a subreport, so lets try this first...
1 - everything from your group header to the group footer...
2 - add a formula into the group header that says:
whileprintingrecords;
stringvar jobauditID="";
stringvar jobID:=";
3 - Then add a formula to the details section:
whileprintingrecords;
stringvar jobauditID;
stringvar jobID;
if {jobaudit_table.FormID} = 90
then (jobID:=totext({job_table.job_id},0,""); jobauditID:=totext({jobaudit_table.jobaudit_id},0,"")
4 - Finally, on your "Audit Performed" formula, have a conditional hyperlink that says:
whileprintingrecords;
stringvar jobauditID;
stringvar jobID;
if {@audit performed} = "Y" then http://mysite.com/viewjobaudit.aspx?jobid=jobID","+jobauditID

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/Edited by: ORA-01435 on Sep 30, 2009 12:54 PM

That's what I thought too. As far as I'm concerned, this is perfectly acceptable. Of course I'm in 10g R2, but:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14223/basicmv.htm#sthref534
I keep re-reading the rules, trying to see why it thinks I'm violating one of them. Might have to meta-link this one.
Just ran this on a different box, ran fine. Seem to have configuration issues between the boxes.
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set linesize 150
col rule_owner for a10
select rule_owner, streams_type, streams_name, rule_set_name, rule_name from dba_streams_rules;
BEGIN
     dbms_streams_adm.add_table_rules(
     table_name          => 'HR.EMPLOYEES',
     streams_type          => 'CAPTURE',
     streams_name          => 'CAPTURE_EMP',
     queue_name          => 'STRMADMIN.STREAMS_QUEUE',
     include_dml          => TRUE,
     include_ddl          => FALSE,
     inclusion_rule     => TRUE);
END;
select capture_name, rule_set_name,capture_user from dba_capture;
BEGIN
     DBMS_CAPTURE_ADM.INCLUDE_EXTRA_ATTRIBUTE(
     capture_name           => 'CAPTURE_EMP',
     attribute_name     => 'USERNAME',
     include          => true);
END;
select source_object_owner, source_object_name, instantiation_scn from dba_apply_instantiated_objects;
--no rows returned   - why?
DECLARE
     iscn      NUMBER;
BEGIN
iscn := DBMS_FLASHBACK.GET_SYSTEM_CHANGE_nUMBER();
     DBMS_APPLY_ADM.SET_TABLE_INSTANTIATION_SCN(
     source_object_name     => 'HR.EMPLOYEES',
     source_database_name     => 'MY',
     instantiation_scn     => iscn);
END;
conn strmadmin/streams
SET SERVEROUTPUT ON
DECLARE
     emp_rule_name_dml VARCHAR2(30);
     emp_rule_name_ddl VARCHAR2(30);
BEGIN
     DBMS_STREAMS_ADM.ADD_TABLE_RULES(
     table_name           => 'hr.employees',
     streams_type           => 'apply',
     streams_name           => 'apply_emp',
     queue_name           => 'strmadmin.streams_queue',
     include_dml           => true,
     include_ddl           => false,
     source_database      => 'my',
     dml_rule_name      => emp_rule_name_dml,
     ddl_rule_name      => emp_rule_name_ddl);
DBMS_OUTPUT.PUT_LINE('DML rule name: '||emp_rule_name_dml);
DBMS_OUTPUT.PUT_LINE('DDL rule name: '||emp_rule_name_ddl);
END;
BEGIN
     DBMS_APPLY_ADM.SET_PARAMETER(
     apply_name => 'apply_emp',
     parameter => 'disable_on_error',
     value => 'n');
END;
SELECT a.apply_name, a.rule_set_name, r.rule_owner, r.rule_name
FROM dba_apply a, dba_streams_rules r
WHERE a.rule_set_name=r.rule_set_name;
-- select rule_name field`s value and write below -- example EMPLOYEES16
BEGIN
     DBMS_STREAMS_ADM.RENAME_TABLE(
     rule_name           => 'STRMADMIN.EMPLOYEES14',
     from_table_name     => 'HR.EMPLOYEES',
     to_table_name          => 'DEMO.EMP',
     operation          => 'ADD'); -- can be ADD or REMOVE
END;
BEGIN
     DBMS_APPLY_ADM.START_APPLY(
     apply_name => 'apply_emp');
END;
BEGIN
     DBMS_CAPTURE_ADM.START_CAPTURE(
     capture_name => 'capture_emp');
END;
alter user hr identified by hr;
alter user hr account unlock;
conn hr/hr
insert into employees values
(400,'Ilqar','Ibrahimov','[email protected]','123456789',sysdate,'ST_MAN',30000,0,110,110);
insert into employees values
(500,'Ulfet','Tanriverdiyev','[email protected]','123456789',sysdate,'ST_MAN',30000,0,110,110);
conn demo/demo
grant all on emp to public;
select last_name, first_name from emp where employee_id=300;
strmadmin/streams
select apply_name, queue_name,status from dba_apply;
select capture_name, status from dba_capture;

Getting One to Many Left Join to be in One Result Row...

11G APEX 4.2
At this time I don't have access to make a view or anything like that. Just select access to the data.
BEGIN
for i in (
SELECT CAA.NODE_NAME THENODE,CNF.FEATURE_TYPE CNFFT from CMS.CMS_APP_ASSIGN "CAA"
LEFT JOIN CMS.CMS_NODE_FEATURE "CNF" on CAA.NODE_NAME=CNF.NODE_NAME
WHERE CAA.NODE_APP = :WHICHAPP and CAA.REMOVE_DT is NULL)
LOOP
dbms_output.put_line(i.THENODE||'--'||i.CNFFT||' ');
END LOOP;
END;
When this returns there is a row for each of the left joins.
server1--CPUCount 
server1--ContactInfo 
server1--ContactInfo 
server1--ContactInfo 
server2--CPUCount 
What I would like to do it just have one row:
NODENAME
CPUCount
Contactinfo
Contact Info
Contact Info
ETC
server1
value1
value2
value4
c
Thanks

Hi,
Taking 1 column from N rows, and transforming that into N columns on 1 row is called Pivoting.
The forum FAQ has a page on this subject. See https://forums.oracle.com/message/9362005#9362005
While you're in the Forum FAQ, also see https://forums.oracle.com/message/9362002

Modelling a one to many table's in a form

I'm looking at creating a program with two tables, Riders and Group. A Group can have many riders and I'm not sure how I can model this in a form. This is my first attempt at righting a full scale program in Java so would like to do it correctly from the start. I've looked at the MVC pattern to keep the view's updated but I'm having problem's getting my head around how to keep the list updated for the group.
My question to you is to ask for an example, maybe open source, example that I can see how someone managed to create this and learn from it. Any help would be greatly appreciated.

bikingbadger wrote:
I'm looking at creating a program with two tables, Riders and Group. A Group can have many riders and I'm not sure how I can model this in a form. This is my first attempt at righting a full scale program in Java so would like to do it correctly from the start. I've looked at the MVC pattern to keep the view's updated but I'm having problem's getting my head around how to keep the list updated for the group.
My question to you is to ask for an example, maybe open source, example that I can see how someone managed to create this and learn from it. Any help would be greatly appreciated.What I have done in the past is use a DropDown and a List, the selection on the DropDown causes the list to populate with the available options/children.

Making a one to many relation it to columns per entry of the many relation

CREATE TABLE main (id number, data varchar2(20));
INSERT INTO main values (1,'some data1');
INSERT INTO main values (2,'some data2');
CREATE TABLE sub(main_id number, data varchar2(20), value number);
INSERT INTO sub values (1,'data1', 10);
INSERT INTO sub values (1,'data2', 5);
INSERT INTO sub values (2,'data3', 10);
INSERT INTO sub values (2,'data4', 30);
INSERT INTO sub values (2,'data5', 20);
I want a result like this
id | data | sub1 | sub2 | sub3
1, some data1, data1, data2, NULL
2, some data2, data4, data5, data1
That is sub1 is the value sub.data that has the largest value, sub2 is the second largest and so on.
This is the closest I can get. Is there a way to make the where main_id = 1 dynamic so instead of 1 it refeers to the value of main.id? Or is there a different query that will give me the result I'm looking for?
SELECT main.id, main.data, sub1.data sub1, sub2.data sub2, sub3.data sub3
FROM main
full outer join
(SELECT main_id, data, value
FROM(SELECT main_id, data, value, rownum rn
FROM(SELECT *
FROM sub
WHERE main_id = 1
ORDER BY value desc))
WHERE rn = 1) sub1
on main.id = sub1.main_id
full outer join
(SELECT main_id, data, value
FROM(SELECT main_id, data, value, rownum rn
FROM(SELECT *
FROM sub
WHERE main_id = 1
ORDER BY value desc))
WHERE rn = 2) sub2
on main.id = sub2.main_id
full outer join
(SELECT main_id, data, value
FROM(SELECT main_id, data, value, rownum rn
FROM(SELECT *
FROM sub
WHERE main_id = 1
ORDER BY value desc))
WHERE rn = 3) sub3
on main.id = sub3.main_id
ID     DATA     SUB1     SUB2     SUB3
2     some data2     -      -      -
1     some data1     data1     data2     -

SQL> select main.id
2       , main.data
3       , max(decode(sub.rn,1,sub.data)) "sub1"
4       , max(decode(sub.rn,2,sub.data)) "sub2"
5       , max(decode(sub.rn,3,sub.data)) "sub3"
6    from main
7       , (select t.*, row_number() over (partition by main_id order by data) rn from sub t) sub
8   where sub.main_id = main.id
9   group by main.id
10       , main.data
11 /
        ID DATA                 sub1                 sub2                 sub3
         1 some data1           data1                data2
         2 some data2           data3                data4                data5
2 rijen zijn geselecteerd.Regards,
Rob.

3 table join finding matching audit records

hi,
I have the following 3 tables ( simplified for sake of example)
TOYS ( rec_no, toy_id)
CHANGE (rec_no, change_id, status, aff_toy_id)
A_CHANGE (rec_no, change_id, aff_toy_id, status, operation, log_date, log_time)
I want to find all the TOYS where a change status was made from PENDING to COMPLETE. The audit table A_CHANGE has an operation field which has 2 possible values. PRE_UPDATE and POST_UPDATE.
the PRE_UPDATE record would have a status of PENDING and the POST_UPDATE record would have a status of COMPLETED.
However for any record there could have been many status changes, thus i need to pair the PRE and POST UPDATE records correctly. Currently i have used the following SQL which assumes that the date and time for the PRE and POST would be exactlyl the same.
create or replace view test as
select a.aff_toy_id
from a_change a, a_change b, change c, toys d
where c.aff_toy_id=d.toy_id
and c.status='COMPLETE'
and a.change_id=c.change_id
and a.change_id=b.change_id
and a.operation='PRE_UPDATE'
and b.operation='POST_UPDATE'
and a.log_date=b.log_date
and a.log_time=b.log_time
and a.status='PENDING'
and b.status='COMPLETE';
this is not reliable as the PRE and POST may be a minute a part. What i need to do is for any given PRE_UPDATE find the associated POST_UPDATE based on the next sequential rec_no and primary key change_id.
How do i do this? Maybe i need an external function or procedure? Or is this possible within a single select statement?
big thanks to anyone who can help me here.
cheers
D
Message was edited by:
user472959

I have used lead analytical function. Analytical functions were introduced by oracle in realease 8.1.6. There are over 30 of them. You can get more information about them on the net. Lead function retrieves the value of a column in the next record. Next record is determined by the ORDER BY clause of the function. To group the result by a column or set of columns you use PARTITION BY clause.
Visit http://asktom.oracle.com/pls/ask/f?p=4950:1:
Anwar

User-defined tables, user-defined fields, and records limitation

Hi,
I would like to use UDT and UDF as my add on table. I doubt there is the limitation (performance issue) using these. Can someone tell me what is the max UDT, UDF, and records can application support?
rgds
ERIC

Hi Eric,
There is no limitation on SBO as far as I know. There is a limitation on SQL though. The limitation (on SQL 2000 that is, not sure if it's the same on SQL 2005) you can only add fields in a table that adds up to 8060 characters. The amount of records in that table will depend on the amount of hard disk space you have available.
Hope it helps,
Adele

Inner join in how many tables

hi All
how many tables join thu inner join.

Hi,
You can join any number of tables as long as join conditions exist between the tables. It is not advisable to use more than 4 tables in join. it results in performance issue.
thanks,
sksingh

WCF RIA zero-one to many ultimate treeview

Hi,
I am using ultimate treeview extension (http://visualstudiogallery.msdn.microsoft.com/ca292c74-661c-48ba-8262-d79a2671c33f)
This requires a zero-one to many table. I have this working with a table.
However I need to connect to a WCF RIA service from the control. Currently using
public class WorksOrderTree
[Key()]
public int id { get; set; }
[Association("ProductPart", "id", "ParentID")]
public IEnumerable<WorksOrderTree> Children { get; set; }
[Association("ProductPart", "ParentID", "id", IsForeignKey = true)]
public WorksOrderTree Parent { get; set; }
public int ParentID { get; set; }
This gives the following error
Error 1
f0rmoum1..csdl(26,6) : error 0113: Multiplicity is not valid in Role 'WorksOrderTree' in relationship 'ProductPart'. Because all the properties in the Dependent Role are nullable, multiplicity of the Principal Role must be '0..1'.
Any idea to to how create zero-one to many in the ria service.
Thanks
Steve

Thanks for your reply Paul.
Yes I read your blog about the Telerik treeview and it was very helpful. the problem is that I want to use the Telerik RadTreeListView control instead, and It seem that it cannot be used with LightSwitch (for threading problems...)
So I am obliged to create a RIAService ( that I hope) it can return a hierarchical structure without any lazy loading, so the RadTreeListView can work....
but It seem that RIAService (Or LightSwitch) Insists on lazy load, and I don't know how to avoid it...
I know that I can create a service in my UserControl project as you say in your blog but I am trying to create a LightSwitch extention ....
AAK

One to Many table join -- concat field per record grouped by id

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