How to display data in record type from two tables?

RE: How to display data in record type from two tables?

Preji P — Fri, 07 Sep 2018 10:48:34 GMT

Hi there,
As suggested by others, you can create the View of the tables(one or more) you want to pull data from, but would like to add one more important point here.

This view should have at least one primary key column, other wise when you try to publish the data store entity it will error out and you would not able to proceed,.

RE: How to display data in record type from two tables?

aloks0189 — Wed, 08 Aug 2018 22:29:17 GMT

Hi Shoaib

Can you please attach the screenshot of your record configuration as well as your CDT structure so that it will be easy to understand the root cause.

RE: How to display data in record type from two tables?

hedn89 — Wed, 08 Aug 2018 19:42:59 GMT

Hi Shoaib,

can you pls upload screenshots of your query and the record definition. The error says that the index(1) is empty, which suggests that the data is empty and you are trying to pull one record from it.

check your query rule if you're getting the data or datasubset?

Thanks

RE: How to display data in record type from two tables?

Shoaib — Wed, 08 Aug 2018 18:55:12 GMT

HI aloks176 ,
Thank You very much for helping me out. I am able to get the data from the view via query(for RECORD TYPE), now I am getting this error in Record List of the Record Type

"Error Evaluating UI Expression
Invalid index (1) for list: valid range is empty"

Can you kindly help me fix this error?

Thanks,
Shoaib

RE: How to display data in record type from two tables?

aloks0189 — Mon, 06 Aug 2018 22:50:00 GMT

Hi Shoaib

Can you please download the xsd of your CDT and check whether @entity annotation refers to the same view which you have created in DB or not.

Also if this doesn't work, try downloading the DDL script from Data store entity design object and check the view name it's going to create and check whether this name and your view name matches or not.

Also make sure, you have created the view under the same schema which is linked to your data store entity design object.

Still if you are unable to resolve this issue, I recommend, please upload your CDT here as well as your View name ( AVAILABLE in DB) so that practitioner can help you to resolve this issue.

Also make sure, you have defined any one of the field of your CDT field as Primary key (but not Auto Increment) otherwise, while publishing the data store it will create a column named as Id (Primary key)

Hope this helps.

RE: How to display data in record type from two tables?

Shoaib — Mon, 06 Aug 2018 20:42:42 GMT

Hi Namrata,
I have successfully created a view in database and a CDT for this view, but I am having trouble linking this CDT with the View. Can you please tell me how to add this View in DSE? cause when I add entity with this new CDT in DSE it creates a new table instead of linking it with the view that I have created in the Database

RE: How to display data in record type from two tables?

Shoaib — Mon, 06 Aug 2018 20:41:26 GMT

Hi Sindhum, I have successfully created a view in database and a CDT for this view, but I am having trouble linking this CDT with the View. Can you please tell me how to add this View in DSE? cause when I add entity with this new CDT in DSE it creates a new table instead of linking it with the view that I have created in the Database

RE: How to display data in record type from two tables?

Arpit Bhargava — Sat, 04 Aug 2018 14:09:16 GMT

There are two options to do it

1. Create a view for the record in which you can have the join on the tables.
2. You can also create the Store Procedure to fetch the data for the different tables.

Thanks

RE: How to display data in record type from two tables?

Shoaib — Fri, 03 Aug 2018 19:48:32 GMT

Thank you very much everyone, I am gonna try the solution and will post an update!
sindhum950 sharayut namratak356 abishekk109 aratim saurabhswarajyap

RE: How to display data in record type from two tables?

saurabhp0002 — Fri, 03 Aug 2018 09:13:56 GMT

As suggested by many, View is the only option to achieve it where as we should be logical while doing so. we should always make use of relevant join to reduce the count and data. As if it has lot many user filters and #of rows in view is high, it might result in slow performance as compared to Table.
it is always advisable to create the record type from table and record summary can have relevant data from various tables which may result in # of transactions but better performance.

RE: How to display data in record type from two tables?

aratim — Fri, 03 Aug 2018 09:11:51 GMT

Hi Muhammad,

I agree with the comment of other practitioners. Create a view with all the columns you need from 2 tables.
And using CDT, display the data in grid.
Thanks.

RE: How to display data in record type from two tables?

josep — Fri, 03 Aug 2018 07:31:32 GMT

Definitely as other said creating a view is that way to do it.
Something to note here is that when using views it is easier if you map the data using the cdt without annotations Fields as “length” or “type”. It is better just to use the names. This is because in a view the data type is inferred and not defined

Jose

RE: How to display data in record type from two tables?

abishekk109 — Fri, 03 Aug 2018 06:57:50 GMT

Create a relational view considering both the tables and use the view to create a record.

Thanks,
Abishek

RE: How to display data in record type from two tables?

namratak356 — Fri, 03 Aug 2018 05:35:24 GMT

Hi Muhammad,

As suggested, you can create view in database and its corresponding cdt in Appian, Record type will point to View Datastore Entity,
View definition will contain data from both tables, you can make use of Analytical function in SQL if table has one to many relationship.

Thanks
Namrata

RE: How to display data in record type from two tables?

sharayut — Fri, 03 Aug 2018 05:11:22 GMT

Hi Muhammad,
As everyone in the above comments have suggested you need a to create a view with all the columns you require from the both the tables. With the help of view you can get data and display it on you record.

RE: How to display data in record type from two tables?

krishnau3863 — Fri, 03 Aug 2018 04:13:33 GMT

Hi muhammads0001,

As Fellow practitioner said you have to create a view for the selected columns from the respective tables.
For better understanding follow the below link
docs.appian.com/.../Records_Tutorial.html
community.appian.com/.../using-database-views

Thanks,
Krishna

RE: How to display data in record type from two tables?

sindhum950 — Fri, 03 Aug 2018 02:39:05 GMT

Hi Muhammad,

Please create a view in the database, which will get data from both the tables.
Then create a CDT for that view.
Then create the data store entity and use that for creating the record (Entity backed record)

This way, the record will have the data from both the tables. Please let me know if this works.

Thanks,
Sindhu