DB2 FOR LUW / DB2FORLUW / A50 - DB2

901 Error Message can occur when the statement contains a simple 
scalar subquery reference in the output of a sub-select which 
also contains a predicate using either the ROWNUM pseudo column 
or row_number() over(...) syntax. The scalar subquery must be 
referenced in the containing query, sub-select or full-select. 
 
Example: 
 
select protocol from 
    (SELECT (select value from registryentries where 
description='Access Protocol (http|https)') protocol 
       FROM rt_entity en 
       WHERE ROWNUM = 1) hostquery 
 
SQL0901N  The SQL statement or command failed because of a 
database system error. (Reason "The entity is not part of this 
relationship".) 
SQLSTATE=58004

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* USERS AFFECTED:                                              * 
* ALL                                                          * 
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* PROBLEM DESCRIPTION:                                         * 
* See Problem Description                                      * 
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* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 10.5 Fix Pack 6                       * 
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First fixed in DB2 Version 10.5 Fix Pack 6.

not known / see Local fix

Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

19.12.2014
25.08.2015
25.08.2015