SAP BLOG Understanding Attributes ,Text, Value help in S/4 HANA ABAP CDS views

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22 Ara 2017
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Introduction:

This Blog post provide information and understanding on very important features in S4HANA Embedded Analytics which is Text, Attributes, and value help in CDS views.

Overview:

We face multiple requirements in Reports based on CDS views related to text, Attributes and Value help.

This can be achieved through various methods, in this Blog Post we will discuss few methods, their advantages and advantages. Sometimes we already standard CDS views for Dimensions and Text and sometimes we have to create them manually.

Solution: Lets discuss below methods to understand the concept:



Method 1: Using CDS View as Master Data View

This method is like Master data concept in SAP BW, there we have Master Data Info objects containing attributes and Text tables. Then in info providers we can assign their property to the fields coming from source.

Similarly, here we create Dimension View which will have Attribute data and Text View which will have text data. Then we will use the text view in Dimension View to make it Master Data and further use this Dimension view in our Transaction Data (Basic/Composite View).



Case 1. When we don’t have standard Dimension and Text view available for required field:

SAP has already provided Standard Dimension and Text View for most the fields, Example: I_Material , I_CompanyCode etc. However, there are some fields where we do not have Standard Views available, depending upon the report requirement we might need to create them.

Let’s take field BWMOD/KKREF, these fields contain same data, BWMOD is coming from T030 table and KKREF from T025L to get the text. Here we don’t have Standard Dimension and Text View on this field. Therefore we will use above to create our Dimension and text Views.

Note: To get the attributes we must have dimension view and to have text field we must have text view.

Let’s see how:

Step 1. Create Text View. Here important annotations are :

@ObjectModel.dataCategory: #TEXT –

@ObjectModel.representativeKey: ‘ValuationGroup’

@Semantics.language: true

@Semantics.text: true


Text CDS view code with annotations:

@AbapCatalog:{

sqlViewName: ‘IAMTEXTVIEW’,

preserveKey: true,

compiler.compareFilter: true

}

@ObjectModel.dataCategory: #TEXT

@VDM.viewType: #BASIC

@ObjectModel.representativeKey: ‘ValuationGroup’

@Metadata.ignorePropagatedAnnotations: true

@EndUserText.label: ‘Text View on Valuation Group’

define view IAM_TEXT_VIEW

as select from t025l

{

key
t025l.kkref as ValuationGroup,

@Semantics.language: true

key t025l.spras as Language,

@Semantics.text: true

t025l.krftx as ValuationGroupName

}




Step 2. Create Dimension View on T030 Table where one of the fields is BWMOD, Take the distinct value for BWMOD and use above created Text view in association and provide CDS level and field level annotations as given below:

Note: When we don’t have separate table for BWMOD/KKREF, we can use distinct in CDS view as we used for below table, but we have table for KKREF which is T025K and hence we can also use directly T025K table without using distinct in our view.



Important points in Dimension CDS view:

1.Annotations:


@Analytics: { dataCategory: #DIMENSION}

@ObjectModel.text.association: ‘_TEXT’

@Search.defaultSearchElement: true

@Search.fuzzinessThreshold: 0.8


2.Association with Text View

Dimension CDS view code with annotations:


@AbapCatalog: {

sqlViewName: ‘IAMDIMENSIONVIEW’,

compiler.compareFilter: true

}

@AbapCatalog.preserveKey: false

@Analytics: { dataCategory: #DIMENSION}

@VDM.viewType: #BASIC

@EndUserText.label: ‘Dimension View on Valuation Group’

@Search.searchable: true

@ObjectModel.representativeKey: ‘ValuationGroup’

define view IAM_DIMENSION_VIEW

as select distinct from t030

association [0..*] to IAM_TEXT_VIEW as _Text on $projection.ValuationGroup = _Text.ValuationGroup

{

@ObjectModel.text.association: ‘_TEXT’

@Search.defaultSearchElement: true

@Search.fuzzinessThreshold: 0.8

@Search.ranking: #HIGH

key t030.bwmod as ValuationGroup,

_Text

}




Step 3: Use association in Basic View/Composite view with above Dimension view and provide the field level annotation and express the association as below till Composite View:

Composite%20View%20Method%201


Composite View Method 1​





Step 4: Now we can check result of our View in Tcode: RSRTS_ODP_DIS



RSRT_ODP_DIS%20Method%201


RSRTS_ODP_DIS Method 1​



Here we can see that Attribute and Text symbols are appearing beside Valuation group , and we can see structure as well.



Step 5: Use above field in Consumption View /BW query, Attributes and Text will come automatically and when we create variable on Valuation Group then Value help will also come automatically with key and text options available.



Case 2. When we have standard Dimension and Text view for available for required field:

For example:
I_MATERIAL and I_MATERIALTEXT is available for Material field.

We can follow the Steps mentioned in Case 1 from Step 4 to Step 5.



Understanding:


We can understand from above that Dimension View is created for Attributes and Text view is created for Descriptions, and when we use Dimension View in association with Composite view, we assign these properties to our field from transaction data and can also assign the value help to it (only when we assign variable at query level/Consumption View).



Special Cases:

  1. Compounding Object GL account:
    From S4HANA 2020, it is necessary to provide association of Chart of account along with GL account association in path expression and at field level.

Reason: Functionally GL account is compounded with Chart of accounts, because in Standard CDS view on GL account we can see that we have two keys.



Standard%20GL%20Account%20CDS%20View%20Keys


Standard GL Account CDS View Keys​



Hence it is now necessary to use all the keys in further associations and annotations. Systems moving from previous version to 2020 might face these upgrade issues if they have not used association and annotation for both the keys properly.



  1. Value help will show all the data of dimension view but sometimes we need to restrict the data.

Example :User want to see only GL accounts specific to one Chart of account. Though we can not do anything in standard Dimension CDS view , we can use condition in our association on chart of accounts like below:

association to I_GLAccount as _GLAccount on_GLAccount.ChartOfAccounts= ‘Filter’
and $projection.GLAccount = _GLAccount.GLAccount






Method 2: Using CDS view just as a text view

In this method we will use or create just text view. We can take any field as key and can make any field as text from different tables or from same table. We will not need Spras Language key.

Important Annotation:

@ObjectModel.dataCategory: #TEXT

@ObjectModel.representativeKey: ‘ValuationGroup’

@Search.defaultSearchElement: true

@Search.fuzzinessThreshold: 0.8

@Search.ranking: #HIGH

@ObjectModel.text.element: [‘krftx’]

@Semantics.text: true


Step 1: Create Text View with annotations as below:



AbapCatalog: {

sqlViewName: ‘IAMTEXTVIEW’,

compiler.compareFilter: true

}

@AbapCatalog.preserveKey: false

@ObjectModel.dataCategory: #TEXT

@VDM.viewType: #BASIC

@EndUserText.label: ‘Text View on Valuation Group’

@Search.searchable: true

@ObjectModel.representativeKey: ‘ValuationGroup’

@Metadata.ignorePropagatedAnnotations: true

define view ZCFI_DV_VG01

{

@Search.defaultSearchElement: true

@Search.fuzzinessThreshold: 0.8

@Search.ranking: #HIGH

key t025l.kkref as ValuationGroup,

@ObjectModel.text.element: [‘krftx’]

@Semantics.text: true

t025l.krftx as krftx

}

where
spras = ‘E’


Step 2:

Now in Composite View/Basic View use the association as below with Text View we just created and annotation at field level:



Composite%20View%20Method%202


Composite View Method 2​



Step 3:

Result of Text View and Composite View
in Tcode:
RSRTS_ODP_DIS%20Method%202


RSRTS_ODP_DIS Method 2​





We can observe that Text and Attribute symbol is not appearing beside. However there is Text Structure.

Result in RSRT:

RSRT.png




Some difference between two methods:

Using Master Data (Method 1)Using Text (Method 2)
Everything related to Master Data, Text and even Heirarchy can be achived from one viewOnly used for text
Association with Dimension View withText View is requiredOnly Text View is enough
Annotation to be used at composite level:mad:ObjectModel.foreignKey.association: ”Annotation to be used at composite level:mad:objectmodel.text.association: ”
It will take care of language automaticallyLanguage has to be filtered at text level if present in text, not suitable where we have muktple language Reports



Method 3: Using Value Help annotation as a field level annotation.

We can directly use Value Help View in the field level annotation in Consumption View. We can use annotation as:

Consumption.valuehelpDefinition.entity.name : ‘ View Name’

Consumption.valuehelpDefinition.entity.element: ‘Field Name ’

However, it doesn’t provide Text in report level and only used for Value help Purpose.



Conclusion:

We learned concept and different methods of applying text and attributes in CDS based Reports.



Please let me know in in comment section your doubts and questions.

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