hello everyone, We have a schema that has few tables with nested tables columns. some operations as truncate on these tables, dropping them or even drop the whole user with cascade option all fail giving internal error. any one has experience this with nested tables and how to deal with this ? plaform: Oracle 10g on linux. ORA-00600: internal error code, arguments: [15239], [], [], [], [], [], [], [] Current SQL statement for this session: drop trigger "ADI"."ARTICLES_TRG" ----- Call Stack Trace ----- calling call entry argument values in hex location type point (? means dubious value) -------------------- -------- -------------------- ---------------------------- sdtcs_getexecname: use overriding value for executable sdtcs_getexecname: ignored overriding value [oracleDMT] ksedmp()+493 call ksedst()+0 0 ? 0 ? 0 ? 1 ? 0 ? 0 ? ksfdmp()+14 call ksedmp()+0 3 ? BFFF1BD4 ? A454362 ? BB085E0 ? 3 ? BAFCCF8 ? kgeriv()+188 call ksfdmp()+0 BB085E0 ? 3 ? kgeasi()+150 call kgeriv()+0 BB085E0 ? BB5D85C ? 3B87 ? 0 ? BFFF1C10 ? kktltc()+2042 call kgeasi()+0 BB085E0 ? BB5D85C ? 3B87 ? 2 ? 0 ? kqlctxlod()+79 call kktltc()+0 56DEF2B0 ? BFFF5E40 ? 8CDE942 ? 56DEF2B0 ? BFFF67FC ? 6 ? thanks. -- //www.freelists.org/webpage/oracle-l