As of 14 July 2009, Oracle is now introducing a new method for
patching, patch set updates, or PSU. According to MOSC notes
854428.1 and 850471.1, Oracle PSU is a new patching strategy whereby
the DBA can choose only "recommended" and "proactive" patches,
instead of all of the patches in a quarterly Critical Patch Update
An Oracle PSU contains recommended bug fixes and
"proactive" cumulative patches, a nice change that makes it simple
for the DBA to chose to apply "priority" patches.
Starting each quarter, Oracle Critical Patch Updates (CPU) will now
contain both the PSU and CPU, so the DBA may choose to apply just
the CPU or apply all patches in the PSU patch bundle (which includes
naming conventions for CPU and PSU is the last-order digit, so it's
easy to see of you are patching with CPU or PSU:
PSU = 10.2.0.4.2
Also, the PSU supports
Oracle's zero-downtime patching, a method for RAC databases whereby
each node is patched independently with no downtime.
Oracle Patch Set Update (PSU) Details:
- Note that OPATCH
10.2.0.4.7 is required for installation of PSU 10.2.0.4.1.
MOSC Note 850471.1 - Oracle Announces First Patch Set Update For
Oracle Database Release 10.2
- MOSC Note 854428.1 -
Introduction to Oracle Patch Set Updates (PSU)
First PSU release
- MOSC Note 8576156.8 - Bug 8576156 10.2.0.4.1 Patch Set
- MOSC Note 854473.1 - Known Issues with this
Patch Set Update 10.2.0.4.1
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