Monday, 3 April 2017

R Integration with SAP HANA

Here are the prerequisites you must have before trying your hands on “R”

HBDCLIENT

HDServer

R-ODBC Package

R Studio

Setup the Data source (in this case SAP HANA DB Server)

Go to Service Marketplace -> Software Downloads -> Support Packages and Patches -> A-Z –> H–> SAP HANA PLATFORM EDITION” –> SAP HANA PLATFORM EDIT. 1.0” –> Entry by Component” –> HANA client

Once you have installed HANADBClient in your system then you need to setup data source.

Go to -> Control Panel -> Search for data Source (ODBC) -> Set up data sources (ODBC)

You will get the below popup

SAP HANA Tutorials and Materials, SAP HANA Certifications, SAP HANA Guide

On Current tab click on Add one popup will appear for Server/Port information

SAP HANA Tutorials and Materials, SAP HANA Certifications, SAP HANA Guide

Enter any data source name/any description for server ad then enter server: port –  if you don’t know the server and port name go to your hana studio (SAP HANA Development perspective) and right click on system then click on properties tab -> Additional properties tab -> Host details. After entering these details click on connect to check if the details are correct or not by entering the username/password if all ok then you get a prompt on connect that connection is successful.

SAP HANA Tutorials and Materials, SAP HANA Certifications, SAP HANA Guide

Once you are done with above now download the R Studio and R package.

Now install both the Components once you are done with R Studio installation download the RODBC package goto your R Studio now & all install r Studio package.

SAP HANA Tutorials and Materials, SAP HANA Certifications, SAP HANA Guide

Once we have added the RODBC package now we can check on R studio using library function

SAP HANA Tutorials and Materials, SAP HANA Certifications, SAP HANA Guide

Now we can go ahead for accessing our HANA database artifacts, establish the database connection using R commands & then execute sqlQuery function for executing sql commands on R.

I created one table in HANA server for billing docs that I am accessing using “R” below is the sample code.

library (‘RODBC’)

ch<-odbcConnect(“data source name”,uid=”test_hana”,pwd=”test12″);

sqlQuery(ch, ‘SELECT * FROM “_SYS_BIC”.”BILLING_DATA” ‘)

result ->

Here is the output from “R”

SAP HANA Tutorials and Materials, SAP HANA Certifications, SAP HANA Guide

Another sample for consuming procedure in “R”

I created one procedure which returns Company Code , Accounting doc & fiscal year from BSEG table.

sqlQuery(ch, ‘CALL “ABAPDEMO”.”GETDATA”(10 , ? )’);

Output in “R”

SAP HANA Tutorials and Materials, SAP HANA Certifications, SAP HANA Guide

Your suggestions/questions/improvements are most welcome, I will try to share more sample codes as I will move on.

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