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Access SAP SuccessFactors Data as a Remote Oracle Database

Use the Oracle ODBC Gateway and Heterogeneous Services technology to access SAP SuccessFactors data from your Oracle system.

The Oracle Database Gateway for ODBC and Heterogeneous Services technology enable you to connect to ODBC data sources as remote Oracle databases. This article shows how to use the CData ODBC Driver for SAP SuccessFactors to create a database link from SAP SuccessFactors to Oracle and to query SAP SuccessFactors data through the SQL*Plus tool. You can also create the database link and execute queries from SQL Developer.

Connect to SAP SuccessFactors as an ODBC Data Source

Information for connecting to SAP SuccessFactors follows, along with different instructions for configuring a DSN in Windows and Linux environments.

You can authenticate to SAP Success Factors using Basic authentication or OAuth with SAML assertion.

Basic Authentication

You must provide values for the following properties to successfully authenticate to SAP Success Factors. Note that the provider will reuse the session opened by SAP Success Factors using cookies. Which means that your credentials will be used only on the first request to open the session. After that, cookies returned from SAP Success Factors will be used for authentication.

  • Url: set this to the URL of the server hosting Success Factors. Some of the servers are listed in the SAP support documentation (external link).
  • User: set this to the username of your account.
  • Password: set this to the password of your account.
  • CompanyId: set this to the unique identifier of your company.

OAuth Authentication

You must provide values for the following properties, which will be used to get the access token.

  • Url: set this to the URL of the server hosting Success Factors. Some of the servers are listed in the SAP support documentation (external link).
  • User: set this to the username of your account.
  • CompanyId: set this to the unique identifier of your company.
  • OAuthClientId: set this to the API Key that was generated in API Center.
  • OAuthClientSecret: the X.509 private key used to sign SAML assertion. The private key can be found in the certificate you downloaded in Registering your OAuth Client Application.
  • InitiateOAuth: set this to GETANDREFRESH.

Windows

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

Note: If you need to modify the DSN or create other SAP SuccessFactors DSNs, you must use a system DSN and the bitness of the DSN must match your Oracle system. You can access and create 32-bit DSNs on a 64-bit system by opening the 32-bit ODBC Data Source Administrator from C:\Windows\SysWOW64\odbcad32.exe.

Linux

If you are installing the CData ODBC Driver for SAP SuccessFactors in a Linux environment, the driver installation predefines a system DSN. You can modify the DSN by editing the system data sources file (/etc/odbc.ini) and defining the required connection properties.

/etc/odbc.ini

[CData SAPSuccessFactors Source] Driver = CData ODBC Driver for SAP SuccessFactors Description = My Description User = username Password = password CompanyId = CompanyId Url = https://api4.successfactors.com

For specific information on using these configuration files, please refer to the help documentation (installed and found online).

Set Connection Properties for Compatibility with Oracle

The driver provides several connection properties that streamline accessing SAP SuccessFactors data just as you would an Oracle database. Set the following properties when working with SAP SuccessFactors data in SQL*Plus and SQL Developer. For compatibility with Oracle, you will need to set the following connection properties, in addition to authentication and other required connection properties.

  • MapToWVarchar=False

    Set this property to map string data types to SQL_VARCHAR instead of SQL_WVARCHAR. By default, the driver uses SQL_WVARCHAR to accommodate various international character sets. You can use this property to avoid the ORA-28528 Heterogeneous Services data type conversion error when the Unicode type is returned.

  • MaximumColumnSize=4000

    Set this property to restrict the maximum column size to 4000 characters.

  • IncludeDualTable=True

    Set this property to mock the Oracle DUAL table. SQL Developer uses this table to test the connection.

Linux Configuration

In Linux environments, Oracle uses UTF-8 to communicate with the unixODBC Driver manager, whereas the default driver encoding is UTF-16. To resolve this, open the file /opt/cdata/cdata-driver-for-sapsuccessfactors/lib/cdata.odbc.sapsuccessfactors.ini in a text editor and set the encoding.

cdata.odbc.sapsuccessfactors.ini

[Driver] DriverManagerEncoding = UTF-8

Configure the ODBC Gateway, Oracle Net, and Oracle Database

Follow the procedure below to set up an ODBC gateway to SAP SuccessFactors data that enables you to query live SAP SuccessFactors data as an Oracle database.

  1. Create the file initmysapsuccessfactorsdb.ora in the folder oracle-home-directory/hs/admin and add the following setting:

    initmysapsuccessfactorsdb.ora

    HS_FDS_CONNECT_INFO = "CData SAPSuccessFactors Sys"
  2. Add an entry to the listener.ora file. This file is located in oracle-home-directory/NETWORK/admin.

    If you are using the Database Gateway for ODBC, your listener.ora needs to have a SID_LIST_LISTENER entry that resembles the following:

    listener.ora

    SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = mysapsuccessfactorsdb) (ORACLE_HOME = your-oracle-home) (PROGRAM = dg4odbc) ) )

    If you are using Heterogeneous Services, your listener.ora needs to have a SID_LIST_LISTENER entry that resembles the following:

    listener.ora

    SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = mysapsuccessfactorsdb) (ORACLE_HOME = your-oracle-home) (PROGRAM = hsodbc) ) )
  3. Add the connect descriptor below in tnsnames.ora, located in oracle-home-directory/NETWORK/admin:

    tnsnames.ora

    mysapsuccessfactorsdb = (DESCRIPTION= (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)) (CONNECT_DATA=(SID=mysapsuccessfactorsdb)) (HS=OK) )
  4. Restart the listener.
  5. Test the configuration with the following command:

    tnsping mysapsuccessfactorsdb
  6. Open SQL*Plus and create the database link with the command below:

    CREATE DATABASE LINK mysapsuccessfactorsdb CONNECT TO "user" IDENTIFIED BY "password" USING 'mysapsuccessfactorsdb';

You can now execute queries in SQL*Plus like the one below (note the double quotation marks around the table name):

SELECT * from "ExtAddressInfo"@mysapsuccessfactorsdb WHERE city = 'Springfield';