I have one table that has parents and children. I will see their relationship.
In SQL Developer extension for VS code, in Diagram, following official documentation, https://docs.oracle.com/en/database/oracle/sql-developer-vscode/26.2/sqdnx/using-schema-diagrams.html#GUID-62735BB9-1530-4143-B1F6-954B5881DCA5
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Adding Supported Objects with Dependencies
The schema objects can reference other objects as part of their definition. To add objects along with their dependencies, select the objects you wish to add. While dragging to the diagram, hold the Alt key. This will add the objects referencing (one level up) and the objects referencing (one level down) by your selection.
Note
To process and include dependencies, ensure you hold the Alt key during the drag-and-drop action.
For example, if you want to view the dependencies for the COUNTRIES table, hold the Alt key while dragging theCOUNTRIES table. Then press the Shift key before dropping the table onto the diagram window. The objects referenced by the selected object, and the objects referencing the selected object will also be added to the diagram.
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I will get the below with Fit to Screen button. I have the below whether or not I use MacBook Air screen or external 27 inch screen. Using the Actual Size button, I got the same result.
- It misses tables
- It does not show relationships.
But In traditional SQL Developer 24.3 desktop app, I get the diagram immediately.
This is the version information of my SQL Developer extension for VS code.
Installation
Identifier
oracle.sql-developer
Version
26.2.0
Last Updated
2 weeks ago
Size
590.99MB
Version: 1.129.1
Commit: 8a7abeba6e03ea3af87bfbce9a1b7e48fed567b8
Date: 2026-07-17T15:35:09Z
Electron: 42.6.0
ElectronBuildId: 14623276
Chromium: 148.0.7778.280
Node.js: 24.18.0
V8: 14.8.178.38-electron.0
OS: Darwin arm64 25.5.0