Monday, March 23, 2015

Native SQL issue: CONNECT statement returns 4

Recently I faced following issue related to Native SQL statement. While attempt to connect external DB via Native SQL’s statement CONNECT TO I got return code 4. This happened only in one of systems in the landscape same ABAP code on other systems connected to the same external DB worked just fine.

After consulting this issue with Basis team we found out root cause. Issue was that TNS Names entry was missing. After adding the connection worked fine.

From SAP GUI you can check the enry via tcode: DBCO or DBACOCKPIT

From ORACLE DB point of view; the TNS names entry are physically stored tnsnames.ora file. Usually the file is located under path:

ORACLE_HOME\NETWORK\ADMIN directory of your database server.

Or in SAP instance:


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