A Teradata Database maintenance release generally does not include many new features or enhancements. A maintenance release bundles all of the fixes to the previous major or minor release at a given point in time. For example, moving from Teradata 15.0 to 15.00.01 is a maintenance upgrade. A single efix is typically released for an emergency fix.
Teradata distributes patch or efix packages to correct problems in major, minor or maintenance releases. For example, Teradata Database 15.00.02.03 is a patch release number.
Patches and efixes are distributed on the Teradata Software Server (TSS). Efixes that have been certified by Teradata System Integration Testing are available for customer use on Teradata @ Your Service.
Every subsequent patch package accumulates the changes provided in earlier patches for the particular maintenance release. For example, for maintenance release 15.00.02.00:
- Patch 15.00.02.01 contains only one patch
- Patch 15.00.02.02 contains two patches:
- Patch 15.00.02.03 contains three patches:
You only need to install patch 15.00.02.03 to get the changes included in earlier patches .01 and .02.
Maintenance and patch upgrades are considered customer-executable in most cases.