> For the complete documentation index, see [llms.txt](https://help.glpi-project.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.glpi-project.org/documentation/modules/management/tabs/database_instances.md).

# Database instances

A database instance groups together all the databases retrieved from the same server (for example, all the databases in a MySQL instance).

![Bdd instances - global view](/files/ajESWk1vTdll2lcX4Z1G)

{% hint style="info" %}
These instances can be added using the automatic inventory or manually
{% endhint %}

{% hint style="success" %}
Note that if you modify a field manually, it will be considered locked. This will prevent it from being modified the next time the automatic inventory is uploaded.

For more information, see [lock](https://github.com/glpi-network/gitbook/blob/main/manual/modules/management/tabs/broken-reference/README.md)
{% endhint %}

In a database instance form, the following information is available:

![Bdd instances - details view](/files/JezJ1lLiSGaDrUtrJzJL)

* Item type : defines the **type of item** on which the database is installed
* Item : Defines the **item** on which the database installed
* Name
* [Status](/documentation/advanced/status.md)
* Associable to a ticket : Yes / Note
* [Location](/documentation/tabs/common_fields/location.md)
* [Database instance type](/documentation/tabs/common_fields/asset_type.md) (MySQL, PostgreSQL, MariaDB, etc.)
* [Technician in charge](/documentation/tabs/common_fields/technician_in_charge.md)
* [Manufacturer](/documentation/tabs/common_fields/manufacturer.md)
* [User](/documentation/tabs/common_fields/user.md)
* Version
* [Comments](/documentation/tabs/common_fields/comments.md)
* [Update source](/documentation/tabs/common_fields/update_source.md)
* Active : Yes / No
* Database instance category
* Has backup : Yes/No
* Last backup date :*date*
* Port
* Path

## Impact Analysis

[Impact analysis](/documentation/tabs/impact_analysis.md) enables an infrastructure diagram to be drawn up, showing the dependencies and impacts in the event of equipment loss. This can be saved and exported

## Databases

[Databases](/documentation/modules/management/databases.md) lists all the databases present on the instance

## Management

[Management](/documentation/modules/tabs/management.md) of financial and administrative information, this information is visible in the 'Management' tab on the current item's form.

## Contracts

GLPI supports [contracts](/documentation/modules/management/contract.md) management, in order to manage contract types such as loan, maintenance, support...

Contracts management allows to:

* make an inventory of all contracts related to the organization assets
* integrate contracts in GLPI financial management
* anticipate and follow contract renewal.

## Documents

The [document](/documentation/modules/management/documents.md) tab lets you link different types of file to the current item (PDF, txt, png, etc.)

You can attach a document already uploaded to GLPI or add a new one directly from this tab.

## Knowledge Base

Lists all the articles in the [knowledge base](/documentation/tabs/knowledgebase.md) relating to the current item.

## Tickets

View all [tickets](/documentation/modules/tabs/tickets.md) linked to the current item

## Problems

This tab refers to all hardware-related [problems](/documentation/modules/assistance/problems.md). Problems can also be linked to tickets, projects, etc. This allows you to have a complete scenario when necessary.

## Changes

[Changes](/documentation/modules/assistance/changes.md) lists all changes related to the current item. From this tab, you can't link a change directly, you can do it from **Assistance** > **Changes** > **Items**.

You can create a new change from this page, which will be linked to the current item you have selected.

## Links

[Links](/documentation/modules/configuration/external_links.md) offer several possibilities. Send the GLPI object file to another URL of your choice, or generate an RDP file, for example.

## Certificates

Link a [certificate](/documentation/modules/management/certificates.md) to your registration. You can manage certificates in **Management** > **Certificates**

## Locks

[Locks](https://github.com/glpi-network/gitbook/blob/main/manual/modules/management/tabs/broken-reference/README.md) are used to prevent a field from being modified when the inventory is uploaded. You can lock/unlock the fields you wish in a GLPI item.

## Notes

[Note](/documentation/modules/tabs/notes.md) lets you add rich-text text and attach a document.

## Domains

You can attach [Domains](/documentation/modules/management/domains.md) to the current item. Domains are also linked to other items such as records, problems, etc.

## Appliances

[Appliances](/documentation/modules/management/appliance.md) includes all business applications managed within GLPI. They can be linked to another GLPI item (computer, application, etc.) as well as to another appliance.

## History

The *History* tab is used to show any changes made to an item. The following information about the changes is available:

* ID of the change.
* Date and time the change was made.
* User who made the change. If this field is not filled, it means that the action was done automatically (For example: automatic inventory update).
* Field that was changed.
* Description of the change that was made.

The description of the change represents either the difference between the old and the new value (For example with location field: Change HQ to Remote Office A), or the explanation of the action which was carried out (For example: Uninstallation of a software: "Gimp 2.0").

{% hint style="info" %}
For dropdowns or objects with a parent/child relationship, the modification of a child will appear in the history of the parent element.
{% endhint %}

## All Information

For an item, all information is displayed on one page from the *All* tab. This shows all of the tabs of an object's form in one view, one below the other.


---

# 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:

```
GET https://help.glpi-project.org/documentation/modules/management/tabs/database_instances.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.