Hello All, Can somebody help with this, I think am going mad. Am running some simple select queries 'select count(*) from report.job where transcribeddate < '01-OCT-2014';' and 'select count(*) from report.job;'. When I run these queries within sqlplus logged directly onto the server where the database is running, I get the following results. Am logged in as system in both cases:- SQL> show userUSER is "SYSTEM"SQL> select name from v$database; NAME---------DV1DW SQL> select * from v$version; BANNER--------------------------------------------------------------------------------Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit ProductionPL/SQL Release 11.2.0.2.0 - ProductionCORE 11.2.0.2.0 ProductionTNS for Linux: Version 11.2.0.2.0 - ProductionNLSRTL Version 11.2.0.2.0 - Production SQL> select count(*) from report.job where transcribeddate < '01-OCT-2014'; COUNT(*)---------- 6758430 SQL> select count(*) from report.job; COUNT(*)---------- 19626224 SQL> And when I run the same queries within a client sqlplus I get the following results. SQL> show userUSER is "SYSTEM"SQL> select name from v$database; NAME---------DV1DW SQL> select * from v$version; BANNER-------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit ProductionPL/SQL Release 11.2.0.2.0 - ProductionCORE 11.2.0.2.0 ProductionTNS for Linux: Version 11.2.0.2.0 - ProductionNLSRTL Version 11.2.0.2.0 - Production SQL> select count(*) from report.job where transcribeddate < '01-OCT-2014'; COUNT(*)---------- 18185097 SQL> select count(*) from report.job; COUNT(*)---------- 19626224 SQL> Why would i get different number of rows returned for the first query in each case? Here is the structure of the table and it's the same irrespective of where the sql is executed. SQL> select object_name,object_type,created,status from dba_objects where object_name = 'JOB' and owner = 'REPORT'; OBJECT_NAME OBJECT_TYPE CREATED STATUS------------------------------ ------------------- --------- -------JOB TABLE 11-JUL-13 VALIDJOB TABLE PARTITION 11-JUL-13 VALIDJOB TABLE PARTITION 11-JUL-13 VALIDJOB TABLE PARTITION 11-JUL-13 VALIDJOB TABLE PARTITION 11-JUL-13 VALIDJOB TABLE PARTITION 12-OCT-13 VALIDJOB TABLE PARTITION 13-JUN-14 VALIDJOB TABLE PARTITION 13-JUN-14 VALIDJOB TABLE PARTITION 20-NOV-14 VALIDJOB TABLE PARTITION 20-NOV-14 VALIDJOB TABLE PARTITION 20-NOV-14 VALID OBJECT_NAME OBJECT_TYPE CREATED STATUS------------------------------ ------------------- --------- -------JOB TABLE PARTITION 20-NOV-14 VALIDJOB TABLE PARTITION 20-NOV-14 VALIDJOB TABLE PARTITION 09-JAN-15 VALIDJOB TABLE PARTITION 10-JAN-15 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALID OBJECT_NAME OBJECT_TYPE CREATED STATUS------------------------------ ------------------- --------- -------JOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 11-JUL-13 VALIDJOB TABLE SUBPARTITION 12-OCT-13 VALIDJOB TABLE SUBPARTITION 12-OCT-13 VALID OBJECT_NAME OBJECT_TYPE CREATED STATUS------------------------------ ------------------- --------- -------JOB TABLE SUBPARTITION 12-OCT-13 VALIDJOB TABLE SUBPARTITION 12-OCT-13 VALIDJOB TABLE SUBPARTITION 13-JUN-14 VALIDJOB TABLE SUBPARTITION 13-JUN-14 VALIDJOB TABLE SUBPARTITION 13-JUN-14 VALIDJOB TABLE SUBPARTITION 13-JUN-14 VALIDJOB TABLE SUBPARTITION 13-JUN-14 VALIDJOB TABLE SUBPARTITION 13-JUN-14 VALIDJOB TABLE SUBPARTITION 13-JUN-14 VALIDJOB TABLE SUBPARTITION 13-JUN-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALID OBJECT_NAME OBJECT_TYPE CREATED STATUS------------------------------ ------------------- --------- -------JOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALID OBJECT_NAME OBJECT_TYPE CREATED STATUS------------------------------ ------------------- --------- -------JOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 20-NOV-14 VALIDJOB TABLE SUBPARTITION 09-JAN-15 VALIDJOB TABLE SUBPARTITION 09-JAN-15 VALIDJOB TABLE SUBPARTITION 09-JAN-15 VALID OBJECT_NAME OBJECT_TYPE CREATED STATUS------------------------------ ------------------- --------- -------JOB TABLE SUBPARTITION 09-JAN-15 VALIDJOB TABLE SUBPARTITION 10-JAN-15 VALIDJOB TABLE SUBPARTITION 10-JAN-15 VALIDJOB TABLE SUBPARTITION 10-JAN-15 VALIDJOB TABLE SUBPARTITION 10-JAN-15 VALID 71 rows selected. TIA