# XDC Connections
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**Who can use this feature?**
The **XDC Connections** can be used by those with the **Builder** subscription plan.
For more details, see our [**pricing comparison matrix**](https://squirrel365.io/pricing/).
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The **XDC** Connections can be used to connect the Squirrel project to an external InfoBurst database.
There are two different **XDC** connections:
* **XDC Cache** - allows a data cache to be read from an Infoburst environment to a range in the Squirrel spreadsheet.
* **XDC Cache Query -** allows a cache query to be read from an Infoburst environment table to a range in the Squirrel spreadsheet
## Common XDC Properties – Credentials
An Infoburst URL and login credentials are required to use the **XDC** connectors. These can be obtained from the Infoburst webpage, as well as the URL port.
### XDC Login Credentials
The '**Infoburst URL**' is used to access followed by a port to identify the specific environment.
After entering the URL, all that is needed is a '**Username**' and '**Password**'.
All three of the credential fields can be bound to cells in the spreadsheet.
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## Mapping the connection to the spreadsheet
After connecting to the database, the **DATA MAPPING** properties will populate which is where you can define the cache or cache query to be brought into Squirrel.
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### XDC Cache
The **XDC Cache** DATA MAPPING properties will populate a list of the existing caches within the connected database. After making a selection, the dropdown will outline the number of caches selected.
The selected caches will populate the fields below to bind their location to the spreadsheet. The **Cache** connections will define the number of columns within the cache, and how many columns will need to be selected in the 'Binding' range.
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### XDC Cache Query
The **XDC Cache Query** DATA MAPPING properties will populate a list of the existing cache queries within the connected database. After making a selection, the dropdown will outline the number of queries selected.
The selected caches will populate the fields below to bind their location to the spreadsheet.
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## Triggering the connection
Like most connections, the properties panel has a **USAGE** drawer that provides control of the connector's triggers.
* **Refresh on Load** - as described, the connection will trigger and the data will be brought through to the spreadsheet on the load of the project. This can be previewed in Debug and Preview modes.
* **Refresh on Interval** - defines an Interval that the connection will refresh. When selected, an input will populate where a period of seconds can be defined for the connection to refresh.
* **Refresh on Cell Changes** - sets the trigger to refresh on the change of another cell. This property utilizes **Conditional Logic**. For more information on **Conditional Logic** and its uses, see [**this article**](https://learn.squirrel365.io/getting-started/dynamic-visibility#conditional-logic).
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