I have a POJO data source that has several output columns, one of which is a Java Object (ArrayList). I can access this in my table but want I want to do is have a nested table that displays information from this Java Object (it is a list of objects). Something like a purchase order form that has purchased items in a table... Trying to figure out how to get started on this.
Related
Context:
I am creating a dashboard in Excel based on the data model I am building in Power Pivot. The source data in the data model is based on various other excel tables I am regularly receiving and copy-pasting into my workbook (their incoming structure is out of my control). My goal is to perform all data processing within Power Pivot/DAX rather than manipulating the data in the worksheets before loading into the model.
Problem:
In my model, I have a table (tabCases) which includes status updates on all cases from a management system. This table has a column named case-ID (not unique). I need to create a lookup-table with unique case-id's where I can create new columns with various KPIs for each case.
How can I do this in Power Pivot?
I found two suggestions in this article but none of them work for me (opt. 1 because it requires a manual creation of the unique ID list and opt. 2 because I don't have a database access).
In my mind there should be something really simple I could do, such as i.e.:
Add new table to data model
Set first column to be equal to DISTINCT(tabCases[caseID])
Is there such a way?
A Linkback Table might help you. Please see the link below:
https://www.sqlbi.com/articles/linkback-tables-in-powerpivot-for-excel-2013/
Thanks
I have an application with a dataset linked to an sql server database. I have updated some of the names or foreign keys and primary keys in the sql server. How do I make those changes translate to the data set. For example, I had a primary key called fk_temsempl_xxxxx. I changed it to fk_temsempl on the sql database. How do I get that change to show in the dataset designer in visual studio?
I have tried running custom tool by right clicking on the dataset and clicking run custom tool. That didnt work. I tried configuring the table adapter of one of the tables where a change occured, but the name of the relation didnt change.
You actually just right click the relation and choose Edit Relation... or double click on the line (when the mouse cursor changes from arrow to drag symbol) but I honestly wouldn't bother; you'll then have further refactoring to do in the code anywhere the relation is used, and it can be heavily used by visual designers.
You also get the problem that VS may not help you with the refactoring: in data binding scenarios most things that can be a source of data can also be a collection of multiple things that can be a valid DataSource. They then rely on a string DataMember to determine which of the collections of data in the data source should be used for the data.
For example, when a bindingsource is bound to list a DataTable, the bindingsource.DataSource property might be the DataSet object that contains the DataTable, and thebindingsource.DataMemberis a string of "YOUR_TABLE_NAME". the BindingSource might not be bound asmyBindignSource.DataSource = myDataSet.MyDataTable`. Refactoring inside strings involves a find and replace
DataRelations in a DataSet are created from foreign keys as they were discovered when the relevant table(s) were added to the dataset but it is important to note that, like DataTables and everything else, they are NOTHING to do with the database schema objects at all - they aren't permanently associated with them, the dataset entities are just set up looking something like the database objects when they (dataset entities) are first created. DataTables are created from only those columns selected, and whatever .NET datatypes closely resemble the types output by the query. For a table of:
Person
------
Name VARCHAR(50)
SSN INTEGER
Birthdate DATE
If you created the table with SELECT * FROM Person you'd get a datatable with Name (string), SSN (int), Birthdate (datetime) but if you made a new datatable in the dataset based on SELECT LEFT(Name, 1) as Initial, PADLEFT(SSN, 20) as PadSSN, DATEDIFF(day, Birthdate, NOW()) as AgeDays FROM Person then you'd get a datatable of Initial (string), PadSSN (string), AgeDays (int) - i.e. the datatable looks nothing like the db table. This concept of disconnection between dataset and db is pervasive, and really the only things that relate in any way to the database are the properties that specify which DB table/column a particular DataTable/DataColumn relates to for purposes of loading/saving data. Your Person.Name datacolumn can be renamed to Blahblah, but it will still have a .SourceColumn property that is set to "Name" - that's how the mapping between dataset and db works; dataset is predominantly completely independent of the db. Renaming a DB column would require a change to the SourceColumn property only
DataRelations don't even have this notion of linking to the parent relation in the database; there's no SourceRelation or SourceFK proeprty because there is no need to. They're set up with the same rules and a generated name all based on the rules of the FK, but then they function independently and only within the dataset. If you rename or even remove an FK from the db the dataset will carry on working in the same restricted way it always did; adding a datarow to a child table when no aprent row exists for it will throw an exception - none of it anything to do with the FK in the db, and the DataRelation can have different rules to the FK (e.g it can cascade deletes when the FK is NOACTION) or even different columns. You can have more or fewer DataRelations than the DB has FKs
Run Custom Tool is not a "contact the DB and see what changes have occurred there and replicate them into the dataset", it is a "turn the XSD that describes the dataset into a bunch of C# classes that implement strongly typed dataset/table/relation/column etc objects". Any time you change the XSD by making an edit in the visual designer and hit save, the custom tool is run. If you edit the XSD directly in a text editor you may need to run it manually to have your changes reflected in c# classes
Reconfiguring a tableadapter probably won't do anything to the relations either; its solely concerned with changing the datatable and tableadapter. If you really want to refresh the relations, delete the datatable from the set and recreate it. Be prepared for a potentially significant mop up/refactoring of code
I am trying to upload 1000s of records into a custom entity on model driven Power Apps. I am able to read in text fields, option sets, dates, etc without any issue. However when I try to map lookup fields, I get an error that says "can't resolve the guid for the lookup field:...". I am able to select "Edit in Excel" in an entity where I can manually select the appropriate lookup choice. But i can not copy and paste the item name because it does not recognize it as a GUID. There is too much data to do this and I need a way to complete this in a programmatic way.
I essentially want to relate the Product IDs (500004, 500370, etc) to the POBs (POB-1000, POB-1001, etc), as records that I can connect together in the model driven app.
Error message after mapping fields and importing:
By default, while importing in CRM (aka Model driven Power App), Lookup field will expect either GUID of that record (ex. 78C03F0D-4618-41C6-9089-B5BDB456465A) or Name (Primary field of that entity record, ex. Full name) to resolve the particular record to be associated.
If you want to map another field, you can map it while doing mapping in Import wizard.
How To Set A Lookup Value With Non-Primary Field As Reference
In the salesInvoice ssrs Report i have added a table called carTableEquipTmp which is not there by default, which I insert into along with the other tables(SalesinvoiceTmp and SalesinvoiceHeaderFooterTmp) in SalesInvoiceDP.InsertIntoSalesInvoiceTmp().
Even though my table carTableEquipTmp is getting successfully inserted into, the data doesn't show up on the report if i print a proforma report.
If i add test values to the carTableEquipTmp table in SalesInvoiceDP.processReport() they show up on the proforma invoice, but there's no way for me to get any parameters needed to set in the correct data into the table at this point. If i stop at this point in the debugger none of the data is present because processreport() is being called from a lower level in the code.
I think it might be a problem with maybe pack/unpack or that the proforma code runs from a server instance as the code run when it is proforma is quite different.
I can see that SalesInvoiceJournalPostBase.CreateReportData() creates an instance of salesInvoiceDP
salesInvoiceDP = new SalesInvoiceDP();
salesInvoiceDP.parmDataContract(salesInvoiceContract);
salesInvoiceDP.parmUserConnection(new UserConnection(true));
salesInvoiceDP.createData();
And that this might have something to do with it... but i still cant get the data i want in the carTableEquipTmp table.
So any idea on how to make Ax 2012 accept this new table i have added as it gets inserted into just like the other tables and there seems to be no problem...
I hope you guys can help.
The SalesInvoice report has two data classes you need to look at for the data provider, SalesInvoiceDP and SalesInvoiceDPBase. SalesInvoiceDPBase extends SrsReportDataProviderPreProcess, so there are a couple extra steps you need to take in order to add new datasources to the report.
In the salesInvoiceDP class, there is a method called useExistingReportData(), which re-inserts the pro-forma temp table data under a user connection, so the SrsReportDataProviderPreProcess framework will pick it up in your report. When the pro-forma process creates the report data, it doesn't insert with a user connection so it doesn't get added to the report. This method only gets called when the report is being run pro-forma.
You will need to add your temp table to this method, and follow the pattern for the other tables, so your code will look something like this:
//this is different from the buffer you insert your data with
CarTableEquipTmp localCarTableEquipTmp;
...
recordList = new RecordSortedList(tableNum(carTableEquipTmp));
recordList.sortOrder(fieldNum(carTableEquipTmp, RecId));
//You will need to add a field to relate your temp table
//to the current invoice journal, and insert it in
//InsertIntoSalesInvoiceTmp() if thats where you're inserting your table.
while select localCarTableEquipTmp
where localCarTableEquipTmp.JournalRecId == jourRecId
{
recordList.ins(localCarTableEquipTmp);
}
delete_from localCarTableEquipTmp
where localCarTableEquipTmp.JournalRecId == jourRecId;
recordList.insertDatabase(this.parmUserConnection());
This method re-inserts your data under the framework and deletes the original data. The data that was re-inserted will then get picked up by the framework and show in your report. If you open CarTableEquipTmp in the table browser, you will most likely see data still there from all the times you have tried running the report. This is why we have the delete_from operation after we re-insert the data. When data is inserted under a userConnection, it is automatically deleted when the report is finished
The other method you will want to modify is SalesInvoiceDP.setTableConnections(), and you will just need to add the following line:
CarTableEquipTmp.setConnection(this.parmUserConnection());
This will set the user connection for your table when running regular (not pro-forma). You will probably want to delete the data that is stored currently in your temp table using alt+F9 from the table browser.
Other than that it's all standard RDP stuff, but it sounds like you have that part working fine. Your temp table must be of type "Regular" for this to work.
I was looking to a Code Road Map feature that Toad provides which shows dependencies of Objects.
Can anyone tell me on what basis the Toad Generate the Dependencies? I am assuming that there is a data dictionary view exists dba_dependencies which work at the backend for getting this relation.
So can we write a script to which we pass object name like package name, table_name amongst others that will show the dependency of the object passed by me.
In code Road Map there is an option to generate data for a table ...how does this work?
What is the algorithm behind it? If there is foreign key on the child table and the parent table is empty, how does this work? How it will populate the depending table first and then the child table.
Looking at user_depencies/ dba_dependencies view structure, querying the view with column REFERENCED_NAME equal to the object that you want to query with should provide you with a list of objects where the object you're searching for is referenced.
Second question is too broad & probably only the Toad developers know how they've implemented it. The data dictionaries provide information about the various constraints on a table. My guess would be the algorithm looks at data dictionary & has different code paths for handling constraints / master child relations. Another assumption would use of handled exceptions to ensure the data is generated cleanly.