ArcGIS Pro 2.7 API Reference Guide
TableName Property (QueryDescription)

ArcGIS.Core.Data Namespace > QueryDescription Class : TableName Property
Gets the fully qualified name of the underlying database table being represented by this instance of QueryDescription. Depending on the database platform, the fully qualified name consists of either "databaseName.ownerName.tableName" (e.g., SQL Server) or "ownerName.tableName" (e.g., Oracle).
Syntax
public string TableName {get;}
Public ReadOnly Property TableName As String
Remarks
This property is meaningful only if IsQueryLayer returns false. If it returns true, this property will return System.String.Empty.
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

QueryDescription Class
QueryDescription Members