> For the complete documentation index, see [llms.txt](https://docs.tibero.com/sysmasterdb.en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tibero.com/sysmasterdb.en/8.3_manual/analysis/report/tpr-report/baseline.md). # Baseline On the \[TPR Report] page, the users can view or create a Baseline list for a specific instance by selecting the instance and clicking the Baseline button.
## Create Baseline Clicking the 'Create Baseline' button displays a screen for creating a Baseline using the snapshot of the selected instance.

Create Baseline

The Snapshot ID in the Default Option and the Specific Snapshot Settings option are mutually exclusive. (When the Specific Snapshot Settings option is selected, the Snapshot ID dropdown is disabled.) * **Default Option**
* The Baseline Name is provided by default and can be changed by the user. * The Snapshot ID allows the users to select only one snapshot, and the information provided in the list is the same as the snapshot list in the Create Report. * **Specific Snapshot Settings** * This feature allows the users to select a snapshot interval to create a baseline
* Select one each of Begin Snapshot and End Snapshot to create a baseline using the snapshots within that interval. * The list displayed when selecting a snapshot is the same as the Snapshot ID.
* The users can select one item from the Instance selection dropdown menu. The dropdown menu options are All Instances in this cluster (all instances in the cluster) and instances registered in SysMasterDB within the cluster.
* When selecting an instance, only the items corresponding to the selected instance are displayed in the snapshot list. * **Time Option** * The users can set the baseline expiration period.
* The users can set it based on hours or days, with a default value of 0. * If set to 0, the baseline is permanently retained. When the users click Create, the baseline is created with the selected options. ## Create Report This is essentially the same as the screen that appears when the users click th [**'Create Report'** ](/sysmasterdb.en/8.3_manual/analysis/report/tpr-report/create-report.md) button on the TPR Report page. However, if the users access this screen from the Baseline page, the creation method is fixed to Baseline and cannot be changed. ## Delete Deletes the baseline selected with the check box.
### --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.tibero.com/sysmasterdb.en/8.3_manual/analysis/report/tpr-report/baseline.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.