Scripts
Find Blocking Sessions in Oracle Database
In this article I would like to describe how to check for blocking sessions within the Oracle DB in 11g. I used to use the dba_blockers view in Oracle 10g but that doesn’t seem to do the trick the same way as in 11. So, there is another way to find out which sessions are […]
Invalid SYS Objects after 10g to 11g Upgrade
The Problem When upgrading from 10.2.0.4 to 11.2.0.1, and applying the latest patchset, which was patchset 8 at the time of writing this, I found there to be several invalid objects in the SYS schema. I raised an SR with Oracle support who informed me that I could drop these objects because they were no […]
Duplicate SYS Objects after 11g Upgrade
Duplicate SYS Objects after 11g Upgrade The Problem After an 11g upgrade you see the following presented to you: =================================================== Number of Duplicate Objects Owned by SYS and SYSTEM =================================================== Counting duplicate objects …. COUNT(1) ———- 4 ========================================= Duplicate Objects Owned by SYS and SYSTEM ========================================= Querying duplicate objects …. OBJECT_NAME OBJECT_TYPE ——————————- ——————- AQ$_SCHEDULES […]
11g High Version Count – Bind Mismatch
The Problem While running Oracle version 11.2.0.1 I noticed that there were a high number of SQL statements which had a high version count. The CURSOR_SHARING parameter was set to FORCE. When looking in V$SQL_SHARED_CURSOR you will see a Y in the column BIND_LENGTH_UPGRADEABLE. The Cause The reason for this happening is described in detail in […]
