In the database, once a folder is created, the data source cannot move to the folder.

Hello 2562774463 

As I understand, you are experiencing difficulty moving a data source into a folder within the Database tool window after that folder has been created. Is that correct?

You can move the data source into a folder through different options:

1. Using the Context Menu (Most Reliable). This is the most direct way to move a data source if dragging is not working as expected. Right-click the data source you want to move. Select Move | To Folder... (or press F6). In the pop-up that appears, select the existing folder name.
2. Drag the data source and drop it directly onto the folder's name. Note: Ensure you drop it on the folder icon/name, not just between items, as that might simply reorder them.
3. If you accidentally put the data source in a folder and want to move it back out, Right-click the data source inside the folder. Select Move | To Top Level.
4. Using the Keyboard Shortcut: Selecting the data source and pressing F6 is the quickest way to bring up the "Move to Folder" menu.

If you still cannot move the data source, check if the data source is "Global" versus "Project-level," though typically both can be organized into folders within the tool window.

If this is not the exact issue you're facing, please let me know exactly what happens when trying these steps. If you see an error in the UI, take a screenshot and share it here. Additionally, it would be very helpful if you could share a screencast of the problem for further investigation.

@... I just tested the behavior in the latest version 2025.3.1 on Windows 10:

1. Created a new folder in the Database view
2. Created a new data source
3. Dragged (or Alt-dragged) the data source into the folder
4. The data source was moved to the new folder as expected.

⚠️In case you have enabled the option to “Drag-and-drop with Alt pressed only” under File | Settings | Appearance & Behavior | Appearance, make sure you are pressing and holding the Alt key before dragging the data source.