ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Data Namespace / DatabaseConnectionProperties Class / ProjectInstance Property

ProjectInstance Property
The instance of the database connected to. Internally, it is used for Oracle only.
Syntax
public string ProjectInstance {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also