You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
[OData](http://www.odata.org/) is a standard for sharing data and its schema between web services. It allows for interoperability with tools like Excel, Power BI or Tableau. If you want to use your data in a service that does not support the OData standard but does support JSON data sources, you can use the [data document](/central-api-odata-endpoints/#data-document) directly.
ODK Central implements the [4.0 Minimal Conformance level](http://docs.oasis-open.org/odata/odata/v4.01/cs01/part1-protocol/odata-v4.01-cs01-part1-protocol.html#_Toc505771292) of the specification. Our goal is to enable data analysis and reporting through powerful third-party tools, sending them the data over OData, rather than attempt to create our own analysis tools. Our implementation primarily targets [Microsoft Power BI](https://docs.microsoft.com/en-us/power-bi/desktop-connect-odata) and [Tableau](https://onlinehelp.tableau.com/current/pro/desktop/en-us/examples_odata.html), two tools with reasonably robust free offerings that provide versatile analysis and visualization of data.
ODK Central implements the [4.0 Minimal Conformance level](http://docs.oasis-open.org/odata/odata/v4.01/cs01/part1-protocol/odata-v4.01-cs01-part1-protocol.html#_Toc505771292) of the specification. Our goal is to enable data analysis and reporting through powerful third-party tools, sending them the data over OData, rather than attempt to create our own analysis tools. Our implementation primarily targets [Microsoft Power BI](https://docs.microsoft.com/en-us/power-bi/desktop-connect-odata) and [Tableau](https://help.tableau.com/current/pro/desktop/en-us/examples_odata.htm), two tools with reasonably robust free offerings that provide versatile analysis and visualization of data.
While OData itself supports data of any sort of structure, Power BI and Tableau both think in terms of relational tables. Our current solution for representing ODK's `repeat` structures in OData is to treat every `repeat` in the `Form` definition as its own relational table, and we compute stable join IDs to relate the tables together.