DB2 - Problembeschreibung
Problem IT01954 | Status: Geschlossen |
DB2 MIGHT PRODUCE SQL0901N ERROR MESSAGE WHEN EXECUTING LEFT JOIN QUERY ON TABLE WITH RCAC | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 | |
Problembeschreibung: | |
Under rare scenarios DB2 might produce SQL0901N if the following conditions are true: 1) One or more tables in the query have Row and Column Access Control (RCAC) declared on them 2) One or more of the columns on which a RCAC mask is declared are marked as not nullable 3) The table(s) are referenced in the null-producing side of a left outer join Example: create Table T2(key varchar(8) not null, c1 int); CREATE MASK MASK_KEY ON T2 FOR COLUMN "KEY" RETURN case when VERIFY_ROLE_FOR_USER(SESSION_USER,'CONFIDENTIAL')=1 THEN KEY else 'xxxxxxxx' END ENABLE; select * from T1 left join T2 on t1.c1 = t2.c1; SQL0901N The SQL statement or command failed because of a database system error. (Reason "unexpected type".) SQLSTATE=58004 <Stack> sqlns_qgs sqlnq_compile_fgac sqlnq_apply_column_level_access_control sqlnq_apply_column_read_level_access_control sqlnq_identify_mask_location sqlnq_fun_tres sqlnq_fun_res_walk sqlnq_encap_doit sqlnq_encap_cast_rtn sqlnq_encap_cast_check_char_len </Stack> | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * All * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Please upgrade to DB2 v10.5.0.5 * **************************************************************** | |
Local-Fix: | |
Lösung | |
Problem is fixed in DB2 version 10.5 fix pack 5 | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 22.05.2014 18.03.2015 28.02.2017 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
Problem behoben lt. FixList in der Version | |
10.5.0.5 |