Consuming HANA views using ABAP

Hi Experts,
We have ABAP reports in ECC which is taking very long time to process it. So we decided to push down the complex logic to HANA where ever it is taking long time to fetch data.
We have standalone HANA System. So can we use HANA as secondary database??? If yes, how can i consume HANA views in ABAP reports??
Can some one guide me.
Thanks in advance.
Best Regards,
Krishna.

Hi Sundar,
Thanks a lot for your valuable inputs.
You need to access the native HANA artefacts (like HANA information views) from your ABAP system using native SQL and ADBC in case HANA is not the primary DB.
- If i want to pass values to the views can we use HANA input parameters in this case as a PLACE HOLDER in Native SQL??? else do i need to create a procedure for it???
Basically ABAP team is optimized the code but still we are hitting with performance. So we want to utilize existing HANA databse as secondary db to push down the complex logic to HANA.
Best Regards,
Krishna

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BR
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Hi,
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Hello,
We are migrating a report from ABAP to HANA due to performance reasons. We have created various views for data selection and aggregation.
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Hi Jitendra,
I think this question is touched/commented on in http://scn.sap.com/message/15268054#15268054, right?
Cheers,
Jasmin

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Hi Kumar,
why would you need to know at all?
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Hi ,
oh yes it is an object (well, how the database should handle it in any context if it wasn't)
i.e. for ORACLE you would have several thousands of them:
select count(*) from dba_objects where object_type ='VIEW'
If you avoid some kind of foreground processing (i.e. pull the data over the network) and handle the processing inside the database it can improve somehow performance a little (i.e. using the retieved rows of the view to stuff into a database table directly). But his may not always possible...
bye
yk

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I am quite beginner to HANA,while reading about the process of creating procedures(ABAP) in HANA,this comes in my mind that can we call FM of abap in hana procedures?If we can, then BAPI's can also be called in hana procedures?

Hi Pankaj,
HANA modelling (use of HANA views or Stored procedures) was primarily introduced to push the code down from Application layer to HANa d/b layer and in turn to reduce the load on the Application server.
Typical use cases for ABAP on HANA would be any ABAP program/report has any data intensive calculations and has Performance issues while handling huge amounts of data (few tables may run into Million records). Within these programs, one can identify hot spots (that typically take a very long time for execution) by using SAP Tools and model this part of code through Code push down by creating HANA artifacts - HANA views or Stored procedures and consume these back in the original ABAP program. This will improve performance of the ABAP program to a great extent.
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We have created views in HANA, same views we need to call it in ABAP ECC 6.0(Netweaver 7.3) i.e. via secondary database connection.
So,
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Amol

Hi Amol,
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Best,
Jasmin
BTW: One word of precaution, the tasks you try to accomplish is rather cumbersome. We definitively recommend to use a more recent release (e.g. NetWeaver 7.4 SP5 or beyond), however, I think that's not your decision, right?

Error in consuming webservices using ABAP

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Thanks
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[Re: Error testing external web service ICM_HTTP_CONNECTION_FAILED;
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http://help.sap.com/saphelp_nw04/helpdata/en/bf/d005244e9d1d4d92b2fe7935556b4c/frameset.htm (webservices ->webservices toolset -> examples)
http://help.sap.com/saphelp_dm40/helpdata/en/1a/b69d427cab0831e10000000a1550b0/frameset.htm

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I want to test Web Service consumer using ABAP-PROXY . So I do what is explain in the weblog :
[http://wiki.sdn.sap.com/wiki/display/Snippets/WebServiceconsumerusingABAP-PROXY]
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Thanks.

Hi Jitesh,
Thanks for the link. I checked but did not find helpful info there.
I have managed to make it work yesterday. Two issues were identified.
1. The namespace in the WSDL file imported into ESR as an external definition. I need to create the same namespace in ESR before importing the WSDL and then import the WSDL into that namespace.
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I am closing this question.
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Pros & Cons for consuming web services in ABAP using ABAP PROXY

Hi,
Other then performence is there any other disadvantages like security,etc for consuming web services in ABAP using ABAP proxy?
I really appreciate if some one provide the more details(Pros & Cons ) regarding cosuming web services and I also want to know is there any other way to consume web services in ABAP.
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<i> is there any other way to consume web services in ABAP</i>
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Regards
Raja

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I have small question.
We have BW system and SAP ECC as source system and to get data from SAP ECC source system we are using SAP ECC Standard data source.
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or
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Pavneet Rana

Thanks for reply,
As SLT is based on ABAP, so we can write complex logic in it.
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I am new to ABAP
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Regards,
Vivek

Hi Vivek,
depends on how you would like to call it :-)
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Creating a long text using ABAP code.. fm SAVE_TEXT

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I have implemented the code as i think it should be. See below, can any see what is wrong. If i add init_text it makes no difference and adding the commit_text just makes it hang
DATA: IT_TEXTS type standard table of TLINE,
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append wa_texts to it_texts.
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Authorization Issue while Data Preview from HANA View

Hi Experts,
We are using BW on HANA. We have created DSOs (info provider) in BW and generated HANA views from there. We have also created analysis authorizations in BW for authorization relevant characteristics. In HANA, we are able to go to the generated analytic view and preview the data from it successfully.
Now I have created a test user and assigned a custom role with below authorizations to this user in HANA:
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In BW system also, the test user has analysis authorizations providing access to the relevant info objects.
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"Cannot get the data provider outline
SAP DBTech JDBC: [2048]: Column store error: Search table error: [2950] user is not authorized"
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indexserver_alert_saphana.trc:
[6433]{416977}[66/-1] 2014-10-14 00:59:27.541187 e CalcEngine       ceAuthorizationCheck.cpp(02365) : AuthorizationCheckHandler::addAPsToSearchObject: Error during converting SqlAPs to Query entries
indexserver_saphana.31003.075.trc
[6433]{416977}[66/-1] 2014-10-14 00:59:27.541197 i TraceContext     TraceContext.cpp(00702) : UserName=TEST_SSO, ApplicationUserName=<<computer name >>, ApplicationName=HDBStudio, ApplicationSource=csns.modeler.datapreview.providers.ResultSetDelegationDataProvider.<init>(ResultSetDelegationDataProvider.java:118);csns.modeler.actions.DataPreviewDelegationAction.getDataProvider(DataPreviewDelegationAction.java:278);csns.modeler.actions.DataPreviewDelegationAction.run(DataPreviewDelegationAction.java:242);csns.modeler.actions.DataPreviewDelegationAction.run(DataPreviewDelegationAction.java:127);csns.modeler.command.handlers.DataPreviewHandler.execute(DataPreviewHandler.java:53);org.eclipse.core.commands
[6433]{416977}[66/-1] 2014-10-14 00:59:27.541187 e CalcEngine       ceAuthorizationCheck.cpp(02365) : AuthorizationCheckHandler::addAPsToSearchObject: Error during converting SqlAPs to Query entries
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Thanks
Nitesh Gupta

Hi Pinaki and Prabhith,
Yes, my issue was resolved. Sorry, missed to updated here.
I was just a beginer for BW on HANA Security at that time and didn't know many small things. The solution was pretty simple.
Whenever you assign analysis authorizations to a user in BW, you also need to generate corresponding HANA authorization. This is done through tcode RS2HANA_CHECK tcode. This tcode converts BW analysis authorizations into HANA analysis authorizations and assign to the HANA user. You can see generated HANA authorization table RS2HANA_AUTH_STR in both BW and HANA.
Once the HANA authorizations are successfully generated for a user, he should be able to see data from Views.
Let me know if this solves issues. Then I will close this thread.
Thanks

Consuming HANA views using ABAP

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