Summarizing data in a one-to-many relationship
Post Author: Bob Amiral
CA Forum: General
I use an order tracking system that has a one to many relationship between the main order information file and the line items file. For each order, there can be one or more items in the items file. I am having no luck trying to summarize data in such a way that shows selected information from the order file with only a summary from the item file on one line. Instead, the reports expands by adding a line for each and every entry from the item file that relates to the order.
How can I summarize data from the item file to show only one line of item data in the same line as the order data?
Post Author: Charliy
CA Forum: General
Group by Order #
Suppress the Detail (and possibly the Group Header, depending on how you want it to look)
Put Running Totals in the Group Footer that reset on change of group.
Similar Messages
-
How to insert data in a one-to-many relationship
How do you insert data into the client, my model entity beans have a one-to-many relationship.
PARENT ENTITY BEAN
PARENT-ID
PARENT-NAME
The ejbCreate(Integer parentID,String name)
CHILD ENTITY BEAN
CHILD-ID
CHILD-NAME
PARENT-ID(foreign key of PARENTID).
ejbCreate(Integer parentID,String name,String foreignparentID)
In a jsp page i collect the parent details and 3 corresponding chld details in a text box.
Can you please tell me how do i proceed from here...
ie. how to i insert data into the entity beans..
Do i pass the child as a collection, and within parents ejbCreate() method do i lookup for the childs home interface and insert one -by -one from the collection.
1. Considering the above example, can some one pls tell how the ejbCreate() mehod signatures, for the parent and child entity beans should be.
2. Pls also show some sample client code as to how to make an insertion.
3. In case you are passing a collection of child data, then in what format does one have to insert into a collection and also how does the container know how to insert the values in the child table , bcoz we are passing as a collection.
4.In case collections cannot be inserted do we need to iterate into the collection in parent's ejbCreate() method, and manually insert into the database of the childtable, thereby creating child entity beans.
Thanks for your time and support...
regards
kartikHi,
3. In this case of course child's ejbCreate(and postCreate) looks like
ejbCreate(Integer childID,String name,ParentLocal parent) {
setId(Id);
setName(name);
ejbPostCreate(Integer childID,String name,ParentLocal parent) {
setParent(parent);
Here you don't need IDs, but it happens only using Locals, not Remotes, if I'm not wrong. Container does it itself.
1. Of course, if you have parent.getChildren() and parent.setChildren() then you don't need any loops, but it should be done anyway in postCreate, because in ejbCreate there no parent exists yet.
Once more 3: example - I'm using JBoss 3.2.5 as EJB container. It has tomcat inside and EJB and JSP+Struts use the same jvm. It means for me that I don't need to use remote interfaces, just locals. And in this case I can implement ejb-relations. So, a have the abstract method parent.getChildren() which returns Collection of ChildLocal - s and method parent.setChildren(Collection childrenLocals) which creates/modifies children by itself.
I have not used remotes for a long time, but as I remember it was not possible to implement ejb-relations using remotes.
regards,
Gio -
Using data from one-to-many relationship
Hi,
i have an one-to-many relationship among two tables similar to the structure as in the below reference:-
[One-to-many-reference|http://docs.oracle.com/cd/E23507_01/Platform.20073/RepositoryGuide/html/s1204repositoryexamplefonetomanymappi01.html]
taking this as an example, i have the city's name with me. using this data in the addr_tbl in the 'address' item-descriptor, i need to get the value of the 'name' in the usr_tbl in the 'user' item descriptor. i will have the list of 'city' with me which i have to iterate and display the corresponding 'name'.
will i be able to perform this in the jsp itself or does it have to be done in java? a sample code snippet or reference for doing this will be of much help.
thank you.Thanks a lot, Sheik.
if i have to do the reverse, ie for the 'name' in the usr_tbl of user item-descriptor i have to fetch the 'city' values in the addr_tbl, will it suffice if i do the following?
<dsp:droplet name="/atg/dynamo/droplet/RQLQueryForEach">
<dsp:param name="queryRQL" value="name=\"sirius\""/>
<dsp:param name="repository"
value="/com/MyRepository"/>
<dsp:param name="itemDescriptor" value="user"/>
<dsp:oparam name="output">
<dsp:valueof param="element.address.city"/>
</dsp:oparam>
</dsp:droplet> -
ONE-to-MANY relationship between tables and forms in APEX
I recently started using APEX and I have run into an issue.
I have a ONE-TO-MANY relationship between two tables, A1 and A2, respectively.
A1:
A1_ID
Item
A2:
A2_ID
SubItem
A1_ID
I have 2 forms (lets call it F1 and F2) that I use to capture data for A1 and A2.
On F2, I have the following fields that are setup to capture data:
A2.A1_ID
**A1.Item (this is a drop down that is populated using a SELECT statement where the select uses A1.Item field)
A2.SubItem (user would enter SubItem)
Note: A2.A2_ID is populated using a SEQ
Everytime I pick **A1.Item on F2, is there a way to link to A1 table and display A1.A1_ID for every **A1.Item selected on F2?
If so, I want to store the value captured in F2 for the A1_ID field into A2 table to maintain my 1-to-MANY relationship.
If this will work, how do I go about implementing this solution?
Can someone help me?I think it sounds like you are asking for a Master-Detail form. Try that and see what you get.
chris. -
Struggling with a one to many relationship in a sub-report
Post Author: Scott_tansley
CA Forum: General
I have a database schema as per below: tblENQUIRY tblDatasheets tblReportParasIRSID (PK) 1 --> & IRSID (FK) UID (PK)Attribute1 SHEETID (PK) 1 > & SHEETID (FK)Attribute2 Attribute1 LIST_ORDER tblStandardParasAttribute3 Attribute2 PARA_CODE (FK) & < 1 CODE (PK)etc... Attribute3 TEXT etc...
The PROBLEM I am a Crystal Reports Newbie, and having to work through things bit by bitu2026 I've managed to achieve quite a lot, but I'm totally stuck with this and would appreciate some help. I need to create a report (essentially a letter and some datasheets) around a one-to-many relationship, which I have managed to compile using a main report (for the one [tblENQUIRY]) and sub report (for the many [tblDatasheets]). Essentially I need a covering letter, then the u2018manyu2019 datasheets, and then a number of other pages (which are largely static text). I have created a main report which includes the covering letter, holds a subreport for the datasheets, and then contains the text for the additional pages. This all works fine, and I get the correct number of datasheets for each main report. My problem stems from the use of this sub report. This sub-report needs to hold some attribute values for each datasheet, which is fine. However, on each datasheet page I need to have some paragraphs, which are held in another one to many relationship. Each datasheet may have up to six paragraphs held as a code in tblReportParas, with a relationship to the text as held in tblStandardParas. My original thought would have been to embed another sub report, containing the values from tblStandardParas!TEXT, into the first sub report. However, I have found that it is not possible to have a sub-report inside another sub-report. I had seperated the first sub-report out from the main report, and then embedded another sub-report into it. This worked fine until I tried to stitch the sub-report back into the main report (at which point the sub-sub-report dissapeared from view). I have therefore reworked my sub-report a little, and the attribution is now stored in a pageheader, with the tblStandardParas!TEXT in a detail section below it. This almost works! The only problem is that there is no relationship between the pageheader and detail sections. To clarify, I would expect to have one datasheet, with the attribution at the top, and then the six paras below. Then, the same on the next page (assuming there is a second datasheet) for that report. Instead, I get the correct attribution, but the detail section actually gives every paragraph in the database, no matter which datasheet/or report it related to! I therefore need to limit the detail section to only show those paragraphs where the SHEETID in tblReportParas is the same as the tblDatasheets SHEETID. Any offers of advice would be appreciated.Post Author: Scott_tansley
CA Forum: General
I managed to resolve this myself in the end. I moves the tblEnquiry data into report header/footer sections, this allowed me to add the tblDatasheets information into the details section, which gave me multiple pages - and then finally, the Paragraphs were added through the use of a sub report.
There's probably an even better way, but for now it works, it's quick - and so I'm going to go with it!
Thanks for your interest. -
Newbie: one to many relationship SQL error
Greetings all-
This is probably a slam dunk for you JDO experts. I'm a JDO newbie, working
with an existing schema in MySQL. I have a one to many relationship between
two tables:
Table "company":
Fields:
company_id: int(11) -- primary key
name : varchar(64)
division : varchar(64)
Table "company_products"
Fields:
company_id: int(11) -- foreign key to table company
product_name: varchar(64)
product_description: varchar(64)
So, I created the corresponding classes:
public class Company {
private int companyID;
private String company_name;
private String division;
// Array of CompanyProduct
private ArrayList companyProducts;
// .. methods omitted
public class CompanyProduct {
private int companyID;
private String productName;
private String productDesc;
// Methods omitted
Then I created the "package.jdo" file:
<?xml version="1.0"?>
<jdo>
<package name="com.packexpo.db">
<class name="Company">
<extension vendor-name="tt" key="table" value="company"/>
<extension vendor-name="tt" key="pk-column" value="company_id"/>
<extension vendor-name="tt" key="lock-column" value="none"/>
<extension vendor-name="tt" key="class-column" value="none"/>
<field name="companyID">
<extension vendor-name="tt" key="data-column" value="company_id"/>
</field>
<field name="name">
<extension vendor-name="tt" key="data-column" value="name"/>
<extension vendor-name="tt" key="column-length" value="64"/>
</field>
<field name="division">
<extension vendor-name="tt" key="data-column" value="division"/>
<extension vendor-name="tt" key="column-length" value="64"/>
</field>
<field name="companyProducts">
<collection element-type="com.packexpo.db.CompanyProduct"/>
<extension vendor-name="tt" key="inverse" value="companyID"/>
</field>
</class>
<class name="CompanyProduct">
<extension vendor-name="tt" key="table" value="company_product"/>
<extension vendor-name="tt" key="pk-column" value="company_id"/>
<extension vendor-name="tt" key="lock-column" value="none"/>
<extension vendor-name="tt" key="class-column" value="none"/>
<field name="companyID">
<extension vendor-name="tt" key="data-column" value="company_id"/>
</field>
<field name="productName">
<extension vendor-name="tt" key="data-column" value="product_name"/>
<extension vendor-name="tt" key="column-length" value="64"/>
</field>
<field name="productDesc">
<extension vendor-name="tt" key="data-column"
value="product_description"/>
<extension vendor-name="tt" key="column-length" value="64"/>
</field>
</class>
</package>
</jdo>
Enhancement works fine. I successfully query and retrive Company objects
from the database, but as soon as I try to get the list of CompanyProducts,
I get an SQL Error:
javax.jdo.JDODataStoreException: [SQL=SELECT company.COMPANYPRODUCTSX FROM
company WHERE company.company_id = 82061]
E0610 Error in executeQuery()
E0606 executeQuery() error --
E0701 Error in getResult().
E0708 Command results in error - 1054 Unknown column
'company.COMPANYPRODUCTSX' in 'field list'
NestedThrowables:
com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper: [SQL=SELECT
company.COMPANYPRODUCTSX FROM company WHERE company.company_id = 82061]
E0610 Error in executeQuery()
E0606 executeQuery() error --
E0701 Error in getResult().
E0708 Command results in error - 1054 Unknown column
'company.COMPANYPRODUCTSX' in 'field list'
I know i have probably set up the package.jdo file incorrectly, but I'm at a
loss for what I did wrong.
Any suggestions?
Thanks!
-MikeHi,
915766 wrote:
I need to write sql for below requirement:
table structure is
serial no LPN
1 4
2 4
3 6
4 6
5 6
6 3
7 3
8 3
9 1
I have to pick distinct 'LPN' like below:That sounds like a job for "GROUP BY lpn".
(any serial no can be picked for the distinct LPN)It looks like you're displaying the lowest serial_no for each lpn. That's easy to do, using the aggregate MIN function.
results needs to be as below:
serial no LPN
1 4
3 6
6 3
9 1
Please suggest with sql.Here's one way:
SELECT MIN (serial_no) AS serial_no
, lpn
FROM table_x
GROUP BY lpn
ORDER BY lpn -- if wanted
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only), and also post the results you want from that data.
Explain, using specific examples, how you get those results from that data.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ {message:id=9360002} -
One-to-many relationship: problem with several tables on the one side...
Hello
I'm having problems developing a database for a content management system. Apart from details, I've got one main table, that holds the tree structure of the content ("resources") and several other tables that contain data of a particular datatype ("documents", "images", etc.). Now, there's one-to-many relationship between "resources" table and all the datatype tables - that is, in the "resources" table there's "resource_id" column, being a foreign key referenced to the "id" columns in the datatype tables.
The problem is that this design is deficient. I can't tell form the "resource_id" column from which datatype table to get the data. It seems to me that one-to-many relationship only works with two tables. If the data on the one side of the relationship is contained in several tables, problems arise.
Anybody knows a solution? I would be obliged.
Regards
HavocadoHi;
A simple way may be create a view on referenced tables:
Connected to Oracle Database 10g Express Edition Release 10.2.0.1.0
Connected as hr
SQL>
SQL> drop table resources;
Table dropped
SQL> create table resources(id number, name varchar2(12));
Table created
SQL> insert into resources values(1,'Doc....');
1 row inserted
SQL> insert into resources values(2,'Img....');
1 row inserted
SQL> drop table documents;
Table dropped
SQL> create table documents(id number, resource_id number,type varchar2(12));
Table created
SQL> insert into documents values(1,1,'txt');
1 row inserted
SQL> drop table images;
Table dropped
SQL> create table images(id number, resource_id number,path varchar2(24));
Table created
SQL> insert into images values(1,2,'/data01/images/img01.jpg');
1 row inserted
SQL> create or replace view vw_resource_ref as
2 select id, resource_id, type, null as path from documents
3 union
4 select id, resource_id, null as type, path from images;
View created
SQL> select * from resources r inner join vw_resource_ref rv on r.id = rv.resource_id;
ID NAME ID RESOURCE_ID TYPE PATH
1 Doc.... 1 1 txt
2 Img.... 1 2 /data01/images/img01.jpg
SQL> Regards.... -
One to Many Relationship Issue
Post Author: jmb1977
CA Forum: Formula
I am having a problem in which I have a one to many relationship with contact phone numbers and students. In other words, one student can have multiple contacts. (I work for a school district)
I made up two formulas...called Contact1Phone and Contact2Phone.
Here is the code I use to display the data:
IF {STUDCTCT.CNTNUMBER} in ["C1"] THEN STDUCTCT.CNTWPHONE
Then the other formula does the same, except uses "C2".
What I get is either C1 or C2 displays, but never both for the same student. Anyway to make this work? Any help on this would be greatly appreciated!Post Author: jmb1977
CA Forum: Formula
I forgot to add, I do know that placing STUDCTCT.CNTNUMBER in [C1,C2] as a selection then just simply place the CNTWPHONE field into the details section of the report will give me the results. But the reason why I am trying it the other way is that I can export the data as one record per student, thus I am trying to put the fields and formulas into the group section. -
Need help mapping one-to-many relationship
[Sorry, inadvertently cross-posted]
Hello,
I have a one-to-many mapping question that's probably a no-brainer for the
experts of the group out there. My problem is that I can't get a collection
of Items for a given Theme to be populated and I don't know if it's a
problem in my system.jdo or in my classes (or both). For example, for Theme
10,
I want a collection of two Items, item_ids 1 and 2.
I have db tables named ITEM and THEME with the following layouts:
ITEM
|==========================================================|
| item_id(pk) | item_name | item_number | theme_id(fk) |
|==========================================================|
| 1 | This is Item1 | 1234 | 10 |
| 2 | This is Item2 | 2954 | 10 |
| 3 | This is Item3 | 2094 | 17 |
| 4 | This is Item4 | 946 | 11 |
| ... |
|==========================================================|
THEME
|=======================================|
| theme_id(pk) | theme_description |
|=======================================|
| 4 | Space |
| 10 | Town |
| 11 | Train |
| 17 | Pirate |
| ... |
|=======================================|
I have two PersistenceCapable classes that map to the above tables:
package com.lego.data;
public class Item
public int item_id;
private String item_number;
private String item_name;
private int theme_id;
public Theme theme;
public String toString()
return
item_number+":"+item_name+":"+theme.getCode()+":"+theme.getDescription();
package com.lego.data;
import java.util.*;
public class Theme
public int theme_id;
public String theme_description;
public Collection items;
public String toString()
return theme_id+":"+theme_description;
and here is my system.jdo file:
<?xml version = "1.0" encoding = "US-ASCII"?>
<jdo>
<package name="com.lego.data">
<class name="Item" identity-type="application"
objectid-class="com.lego.data.IntOId">
<extension vendor-name="kodo" key="table" value="item"/>
<extension vendor-name="kodo" key="lock-column" value="none"/>
<extension vendor-name="kodo" key="class-column" value="none"/>
<field name="item_id" primary-key="true">
<extension vendor-name="kodo" key="data-column" value="item_id"/>
</field>
<field name="item_number">
<extension vendor-name="kodo" key="data-column" value="item_number"/>
</field>
<field name="item_name">
<extension vendor-name="kodo" key="data-column" value="item_name"/>
</field>
<field name="theme_id">
<extension vendor-name="kodo" key="data-column" value="theme_id"/>
</field>
<field name="theme">
<extension vendor-name="kodo" key="theme_id-data-column"
value="theme_id"/>
</field>
</class>
<class name="Theme" identity-type="application"
objectid-class="com.lego.data.ThemeKey">
<extension vendor-name="kodo" key="table" value="theme"/>
<extension vendor-name="kodo" key="lock-column" value="none"/>
<extension vendor-name="kodo" key="class-column" value="none"/>
<field name="theme_id" primary-key="true">
<extension vendor-name="kodo" key="data-column" value="theme_id"/>
</field>
<field name="theme_description">
<extension vendor-name="kodo" key="data-column"
value="theme_description"/>
</field>
<field name="items">
<collection element-type="Item"/>
<extension vendor-name="kodo" key="inverse" value="theme"/>
</field>
</class>
</package>
</jdo>
Thanks in advance for the help.
-TimAbe White wrote:
The first thing to check is that you are always setting the "theme" field in
your Items. If you add an Item i to the "themes" collection of a Theme t, but
forget to also set i's "theme" field to t, then the change will never get
written to the database.
Next, make sure that whenever you set the "theme" field of an Item, you also
set
its "theme_id" field. You map both of these fields to the same column, so you
better be sure they stay in synch.
On a related note, you might try making the "theme_id" field non-persistent if
things still aren't working for you. Mapping two fields to the same column
might be causing trouble. It would be safer to make theme_id non-persistent
anyway, and to always grab the id from the Theme stored in your "theme"
field.
Better OO programming and all that, though I can see that you might have
performance issues in mind when doing it your way.
Anyway, if you find that it works when you make theme_id nonpersistent, let us
know and we'll see why the double-mapping of the column is causing problems,
and hopefully find a fix.Abe,
Thanks for the response but I'm still confused. I failed to mention that
the Item and Theme tables are in an existing schema, so as you saw in my
system.jdo, I am specifying application identity.
Since this is an existing schema, the Item table has theme_id as the
foreign key to the Theme table. So are saying that it is a problem to map
the both theme_id as a data column and a Theme object in the Item at the
same time?
I guess what I don't understand is exactly what my system.jdo should look
like to map a one-to-many relationship. In my case, from Theme (1) to Item
(many). (See my system.jdo in previous post).
Thanks
-Tim -
How Can realize a one-to-many relationship via RIA service in lightswitch
I have to query a large data and the normal query in lightswitch is so slow that I decided to use RIA service to improve the query.However I am not very good at RIA service. I follow
this tutorial and set up a very simple RIA service. In my project, I have a one-to-many relationship but I don't know how to
realize it . here is the Relationship:
public class CombinedStadium
private EcoStatus _ecoStatus;
[Key]
public int Id { get; set; }
public string Name { get; set; }
public string Category { get; set; }
public string Owner { get; set; }
public string Street { get; set; }
public string OrgCode { get; set; }
public string Place { get; set; }
public int? FoundYear { get; set; }
public double? LandArea { get; set; }
public double? BuildingArea { get; set; }
public double? SiteArea { get; set; }
public double? Investment { get; set; }
public double? Fiscal { get; set; }
public double? CommonWeal { get; set; }
public double? SelfRaised { get; set; }
public double? SocialDonate { get; set; }
public double? Other { get; set; }
public double? Longitude { get; set; }
public double? Latitude { get; set; }
public string Note { get; set; }
public byte[] Photo { get; set; }
[Include]
[Association("Stadium_EcoStatus", "Id", "EcoId", IsForeignKey = false)]
public virtual EcoStatus EcoStatus
get { return this._ecoStatus; }
set
this._ecoStatus = value;
if (value == null)
this.Id = value.Id;
I am not sure whether it is right or not. But I want "one CombinedStadium Entity may contains
more than one(many)EcoStatus Entities.
I tried the code above and update my datasource, I got the error "the entity
LightSwitchApplication.Implementation.EcoStatus's property doesn't supported by the type of StadiumEcoReference".
How Can I realize a one-to-many relationship via RIA and use it in my lightswitch program?
thx !!!namespace WCF_RIA_Project
public class CombinedStadium
[Key]
public int SiteId { get; set; }
public string Name { get; set; }
public string Category { get; set; }
public string Owner { get; set; }
public string Street { get; set; }
public string OrgCode { get; set; }
public string Place { get; set; }
public int? FoundYear { get; set; }
public double? LandArea { get; set; }
public double? BuildingArea { get; set; }
public double? SiteArea { get; set; }
public double? Investment { get; set; }
public double? Fiscal { get; set; }
public double? CommonWeal { get; set; }
public double? SelfRaised { get; set; }
public double? SocialDonate { get; set; }
public double? Other { get; set; }
public double? Longitude { get; set; }
public double? Latitude { get; set; }
public string Note { get; set; }
public byte[] Photo { get; set; }
[Include]
[Association("Stadium_EcoStatus", "SiteId", "StadiumId")]
public IQueryable<CombindeEcoStatus> EcoStatus { get; set; }
public class CombindeEcoStatus
[Key]
public int EcoId { get; set; }
public string StatdiumName { get; set; }
public int? StadiumId { get; set; }
public int? Year { get; set; }
public int? EmployeeNum { get; set; }
public string OperateMode { get; set; }
public string OpenStatus { get; set; }
public double? OpeningDays { get; set; }
public string ClientCount { get; set; }
public double? Income { get; set; }
public double? Expend { get; set; }
[Include]
[Association("Stadium_EcoStatus", "StadiumId", "SiteId", IsForeignKey = true)]
public CombinedStadium Stadium
get;
set;
public class WCF_RIA_Service : DomainService
private ApplicationData m_context;
public ApplicationData Context
get
if (this.m_context == null)
string connString =
System.Web.Configuration.WebConfigurationManager
.ConnectionStrings["_IntrinsicData"].ConnectionString;
EntityConnectionStringBuilder builder = new EntityConnectionStringBuilder();
builder.Metadata =
"res://*/ApplicationData.csdl|res://*/ApplicationData.ssdl|res://*/ApplicationData.msl";
builder.Provider =
"System.Data.SqlClient";
builder.ProviderConnectionString = connString;
this.m_context = new ApplicationData(builder.ConnectionString);
return this.m_context;
[Query(IsDefault = true)]
public IQueryable<CombinedStadium> GetAllStadiums()
var stadiumsQuery = from stadium in this.Context.StadiumSet
select new
ID = stadium.Id,
Name = stadium.Name,
Category = stadium.Category.Name,
OwnerParts = stadium.Owner2StadiumMediatorCollection.Select(x => x.Owner.Name),
Street = stadium.Street.Name,
OrgCode = stadium.StadiumBase.OrgCode,
Place = stadium.StadiumBase.Place,
FoundYear = stadium.StadiumBase.FoundYear,
LandArea = stadium.StadiumBase.LandArea,
BuildingArea = stadium.StadiumBase.BuildingArea,
SiteArea = stadium.StadiumBase.SiteArea,
Investment = stadium.StadiumBase.Investment,
Fiscal = stadium.StadiumBase.Fiscal,
CommonWeal = stadium.StadiumBase.CommonWeal,
SelfRaised = stadium.StadiumBase.SelfRaised,
SocialDonate = stadium.StadiumBase.SocialDonate,
Other = stadium.StadiumBase.Other,
Longitude = stadium.StadiumBase.Longitude,
Latitude = stadium.StadiumBase.Latitude,
Note = stadium.StadiumBase.Note,
Photo = stadium.StadiumBase.Photo,
var result = stadiumsQuery.AsEnumerable().Select(x => new CombinedStadium()
SiteId = x.ID,
Name = x.Name,
Category = x.Category,
Owner = string.Join("/", x.OwnerParts),
Street = x.Street,
OrgCode = x.OrgCode,
Place = x.Place,
FoundYear = x.FoundYear,
LandArea = x.LandArea,
BuildingArea = x.BuildingArea,
SiteArea = x.SiteArea,
Investment = x.Investment,
Fiscal = x.Fiscal,
CommonWeal = x.CommonWeal,
SelfRaised = x.SelfRaised,
Other = x.Other,
Longitude = x.Longitude,
Latitude = x.Latitude,
Note = x.Note,
Photo = x.Photo,
}).AsQueryable();
return result;
[Query(IsDefault = true)]
public IQueryable<CombindeEcoStatus> GetAllEcoStatuses()
var stadiumEco = from eco in this.Context.EcoStatusSet
select new CombindeEcoStatus()
EcoId = eco.Id,
StatdiumName = eco.StadiumEco.Name,
StadiumId = eco.StadiumEco.Id,
Year = eco.Year,
EmployeeNum = eco.Employee,
OperateMode = eco.OperateMode,
OpenStatus = eco.OpenStatus,
OpeningDays = eco.OpeningDays,
ClientCount = eco.ClientCount,
Income = eco.Income,
Expend = eco.Expend
return stadiumEco;
protected override int Count<T>(IQueryable<T> queryable)
return queryable.Count();
now I have solved my problem, but when I query the data in Lihgtswitch HTMLClient . I can't get the related entities "CombindeEcoStatus" . How can I write the return value of
GetAllStadiums function to get the related CombindeEcoStatus of each
CombinedStadium?
thanks! -
I'm a bit confused on how to create one to many relationships with ADF. Let's say I have a make and model table. One make can have many models. Now let's say I create a Business Facade like this (I'm using JavaBeans):
public Collection getMakes () { ... }
Ok, my data control now has the collection for makes. And I want to do something like this
public Collection getModels (Make make) { ... }
I can't make this work because ADF will detect it as a method accesor. How does this work?
Regards,
Néstor BoscánMaybe looking at how TopLink does it, can help you.
Try creating TopLink objects for a master detail set of tables (dept-emp).
This will create two beans that should be similar to your beans. Look at their structure to see how they work.
The ADF TopLink workshop has the steps to show you how to do this.
http://www.oracle.com/technology/obe/obe9051jdev/ide1012/adfworkshop/buildingadfapplicationsworkshop.htm -
Merge Two Reports in Excel Analyzer - One To Many Relationship
I want to show AR Data with CO Data - e.g. a bill + Income and it's associated account ssignemnt on the FI/CO side. I want the report to be able to show a cost centre manager to be wary of the income credited to their cost centre when a debtor has been raisedaas they may not fully pay the bill. To do this I'm using the standard DSO for AR & GL line items. Fisrtly I run a query on GL line item data where the user can select from a cost centre variable to look at credits to their cost centre. This produces a list of source documents that are used (via replacement path variable) in a second query. The second GL Query gives me a list of the allocation numbers for those line items. Had to be two queres as there are two GL postings that needed linking (this is because the cost assignment comes from a ceratin acc type and the debtor information comes from another acc type). I then use the allocation number (again via a replacement path variable) to run a third query on the AR data that shows all bills and payments linked to that allocation number. It seems to work ok.
However I have put these three queries in an Excel Analyzer workbook. All the user does is enter a cost centre when running the report. Each query is on a different sheet but what I'd like to do is merge the data on to the one sheet. I want to see the bill and it's payments from the AR data matched up with the cost assignment from the FI/CO data. This would be a one to many relationship e.g. one bill may have it's cost assignment split over more than one cost centre. Is there anyway to do this using simple excel functionality?
So I'd like to see:
Allocation No. 12345 Bill £100 Revenue £50 Cost Centre 1234 £25
Cost Centre 2345 £25
Anybody any ideas?Hi,
Thanks for your answers.
I did explore using infosets but really struggled with joining the data and getting a sensible output. For example where a bill was done in installments I was getting 12 lines (e.g. one for each month) rather than just one. THis meant it looked liked they'd paid twleve times as much etc.
I did also try report to report. Which to my mind worked ok. Except the customer wanted it all in "One" report rather than having to drill down to see data.
I'll try a multiprovider but I'm worried that I'll end up with similar issues as I had when using the infoset.
Cheers
Joel -
SELECT on One to many Relationship
Hi am trying to run a select statement on one to many relationship.
TableA is the main table with acount number and Total_Payments
TableB,TableC and TableD have a lot of account number and payments
per day
Note an account might on TableA might not be on TableB or TableC since it was not paid for that day hence 'if it is Null i'll like to populate a zero.
OUTPUT should be :
TableA.Account_No | Total_Amount(amounts from TableB/C/D)
Regards.Hello,
Please refer to the following statements. If I have any misunderstand, please post the DDL of the tables and sample data for further analysis:
SELECT A.account, SUM(ISNULL(B.payment,0)+ISNULL(C.payment,0)+ISNULL(D.payment,0)) As Total_Amounts
FROM TableA A LEFT JOIN TableB B ON A.account=B.account
LEFT JOIN TableC C ON A.account=C.account
LEFT JOIN TableD D ON A.account=D.account
GROUP BY A.Account
Regards,
Fanny Liu
If you have any feedback on our support, please click here.
Fanny Liu
TechNet Community Support -
What types of containers need to be used for one-to-many relationships
While looking at toplink examples, I noticed that synchronized containers only are being used for one-to-many relationships even though it's not required by the documentation.
Is it required?
Also how does merge affect it? I'm gettning concurrent modification exceptions from time to time, while using iterators for containers from these relationships.
Does it mean that I have to use enumeration on vectors only and toplink merge isn't atomic? So there is no isolation when toplink merges the data from unit of work into identity maps?
There is nothing about thread-safety and threading aspects of accessing containers for CollectionMapping based relationships. Please advise.Non synchronized containers can be used but may require some extra code to handle concurrent access. If you are accessing the objects from the shared cache (not cloned in a UnitOfWork) then you will need to isolate your iteration within a synchronized block, synchronized on the collection itself, or handle the ConncurrentModificationException if they happen rarely.
Because these are shared instances of these collections other threads may be writing to them while they are being read from.
--Gordon -
Urgent : java bean having bidirectional one to many relationship
Hi,
We have complex requirement in our application.
We need to copy java bean having bidirectional one to many relationship to another javabean having bidirectional one to many relationship..
E.g
Class Basket1 {
public String color;
pubic String type;
public List<Basket1> basketList = new ArrayList()
Class Basket2 {
public String color;
pubic String type;
public List<Basket2> basketList = new ArrayList()
We need to exact copy Basket1 to Basket2. We are in trouble to copy List of child because we do not have how many child Basket1 have of same type..
Can someone help us how we can implement such kind of complex object bidirectional one to many relationship??I can't see anything bidirectional about these relationships. What I can see is a couple of BasketN classes that look identical so I don't know why they both exist, and they both contain lists of themselves as members, which suggests some kind of tree structure. Nothing bidirectional there. I can see tat these things can form circular object graphs but I don't see why you would want to do that.
We need to exact copy Basket1 to Basket2And I don't know what that means. Please explain.
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