Hi, Toad 12.9.0.71 x64 Oracle client 11.2.0.3.0 x64 Oracle DB 12.1.0.2.0 - x64 Situation real (from SQLPlus) SQL*Plus: Release 11.2.0.3.0 Production on Wed Sep 28 10:23:09 2016 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options 10:23:10 > 10:23:10 >SELECT /*+ PARALLEL(4) */ count(*) from RTX_STAGING; COUNT(*) ---------- 64437857 Elapsed: 00:00:19.47 10:23:29 > And from the Toad, shows 0 records (have checked,refreshed several times...) SQL spool shows: Session: Q383211[A1_FAS]@FMS Timestamp: 10:33:27.926 select count(*) from "A1_FAS"."RTX_STAGING" Error: ORA-08103: object no longer exists What i know is that another session in background are dropping partitions (a lot and very often!) and this somehow reflects on Toad execution. But, Oracle SqlPlus* works OK! Hope this helps, Damir
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