# Delete a field firebase **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [July 24, 2018, 9:07am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347 "2018-07-24T09:07:24Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Tony\_Vito](https://avatars.discourse-cdn.com/v4/letter/t/58f4c7/32.png) [@Tony\_Vito](https://community.thunkable.com/u/Tony_Vito)\ **Post date:** [July 24, 2018, 9:07am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/1 "2018-07-24T09:07:24Z")
HI, is it possible to delete a field in a firebase database? ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 24, 2018, 9:10am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/2 "2018-07-24T09:10:02Z")
Hi, This can be done by appropriately changing the structure of data nodes. ---
**Author:** ![Tony\_Vito](https://avatars.discourse-cdn.com/v4/letter/t/58f4c7/32.png) [@Tony\_Vito](https://community.thunkable.com/u/Tony_Vito)\ **Post date:** [July 24, 2018, 9:11am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/3 "2018-07-24T09:11:52Z")
could you give me an example kindly? ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 24, 2018, 9:18am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/4 "2018-07-24T09:18:41Z")
At the very bottom of the page [https://docs.thunkable.com/thunkable-cross-platform/create/components/data/realtime-db](https://docs.thunkable.com/thunkable-cross-platform/create/components/data/realtime-db) there is an example in which the node “content” is added to the node “text”. If the “content” node is not needed, assign a text value instead object to node “text”. The “content” node will disappear. If you want to delete the child node of their nodes of this level, you will get all the child nodes and reassemble them back without a remote node. ---
**Author:** ![Tony\_Vito](https://avatars.discourse-cdn.com/v4/letter/t/58f4c7/32.png) [@Tony\_Vito](https://community.thunkable.com/u/Tony_Vito)\ **Post date:** [July 24, 2018, 9:50am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/5 "2018-07-24T09:50:09Z")
ok… is it possible to modify, in real time, the API key Firebase? ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 24, 2018, 9:55am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/6 "2018-07-24T09:55:37Z")
Yes ---
**Author:** ![Tony\_Vito](https://avatars.discourse-cdn.com/v4/letter/t/58f4c7/32.png) [@Tony\_Vito](https://community.thunkable.com/u/Tony_Vito)\ **Post date:** [July 24, 2018, 10:01am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/7 "2018-07-24T10:01:37Z")
so I can edit it from the app? ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 24, 2018, 10:11am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/8 "2018-07-24T10:11:00Z")
On the documentation page I gave you, there is an example of getting data from the database and saving the data to the database. In addition, you need to learn how to work with the JSON format, for example, by this link. [http://www.tutorialspoint.com/json/](http://www.tutorialspoint.com/json/) If you find it difficult to work with Firebase, then first try working with AirTable (Spreadsheet component), which has data deletion blocks. ---
**Author:** ![Tony\_Vito](https://avatars.discourse-cdn.com/v4/letter/t/58f4c7/32.png) [@Tony\_Vito](https://community.thunkable.com/u/Tony_Vito)\ **Post date:** [July 24, 2018, 10:17am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/9 "2018-07-24T10:17:33Z")
I’m sorry but I mean this: ![Immagine2](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/3/8/38c79d894a22a0ddf88574d2daa0e57df8e95abc.jpg) ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 24, 2018, 10:19am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/10 "2018-07-24T10:19:17Z")
There is no block for changing this field and therefore it can not be changed dynamically ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 24, 2018, 10:22am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/11 "2018-07-24T10:22:11Z")
Why do you need to change this field? Do you want to use multiple Firebase databases? ---
**Author:** ![Tony\_Vito](https://avatars.discourse-cdn.com/v4/letter/t/58f4c7/32.png) [@Tony\_Vito](https://community.thunkable.com/u/Tony_Vito)\ **Post date:** [July 24, 2018, 10:27am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/12 "2018-07-24T10:27:09Z")
exactly… I have to create an app with a database list. When I click on a database I have to enter the password to access it … ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 24, 2018, 10:32am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/13 "2018-07-24T10:32:32Z")
Of course I’m sorry, but you are trying to do what you do not need. To access the database, use the Sign In component. [https://docs.thunkable.com/thunkable-cross-platform/create/components/sign-in/sign-in](https://docs.thunkable.com/thunkable-cross-platform/create/components/sign-in/sign-in) Try to make a simple example first using RealtimeDB and Sign In to understand how it works. ---
**Author:** ![Tony\_Vito](https://avatars.discourse-cdn.com/v4/letter/t/58f4c7/32.png) [@Tony\_Vito](https://community.thunkable.com/u/Tony_Vito)\ **Post date:** [July 24, 2018, 10:50am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/14 "2018-07-24T10:50:21Z")
good… but if I distribute the app and the user wants to match it to a specific firebase database, how can I do if the api key and the URL database are precompiled in the app? ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 24, 2018, 10:53am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/15 "2018-07-24T10:53:45Z")
The user must be mapped not with the database, but with the data of that user in one common database. ---
**Author:** ![Tony\_Vito](https://avatars.discourse-cdn.com/v4/letter/t/58f4c7/32.png) [@Tony\_Vito](https://community.thunkable.com/u/Tony_Vito)\ **Post date:** [July 24, 2018, 10:57am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/16 "2018-07-24T10:57:20Z")
the database is combined with a device or a series of devices belonging to the same owner, but the app is rightly generic … ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 24, 2018, 10:59am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/17 "2018-07-24T10:59:02Z")
Finally I realized what you want to do. This can be done using the Firebase Javascript API. But I have a question, if the users will be 1,000,000 will you create 1,000,000 databases for them or do you want them to connect to their databases through your application? ---
**Author:** ![Antonio\_Vitolo](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@Antonio\_Vitolo](https://community.thunkable.com/u/Antonio_Vitolo)\ **Post date:** [July 24, 2018, 4:36pm UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/18 "2018-07-24T16:36:14Z")
Imagined n managers, each of which has n devices … the database must be unique to each manager and will contain the n devices of the manager. ---
**Author:** ![Antonio\_Vitolo](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@Antonio\_Vitolo](https://community.thunkable.com/u/Antonio_Vitolo)\ **Post date:** [July 25, 2018, 6:14am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/19 "2018-07-25T06:14:38Z")
Imagined n managers, each of which has n devices … the database must be unique to each manager and will contain the n devices of the manager. ---
**Author:** ![actech](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@actech](https://community.thunkable.com/u/actech)\ **Post date:** [July 25, 2018, 6:20am UTC](https://community.thunkable.com/t/delete-a-field-firebase/37347/20 "2018-07-25T06:20:32Z")
Thanks I got it. This functionality can be done with the Firebase Javascript API - [https://firebase.google.com/docs/web/setup](https://firebase.google.com/docs/web/setup) [Next page](https://community.thunkable.com/t/delete-a-field-firebase/37347.md?page=2)