How to create a view layer for public facing platform?

[geo_ccpc]

We have created a Branch Versioned geodatabase in SQL Server and successfully published the Parcel Fabric to our ArcGIS Enterprise Portal.

One challenge we are currently facing is determining the best practice for publishing the Parcel Fabric in a view-only format for use on our public-facing platform.

Specifically, we’re looking for guidance on how to:

- Publish a view-only version of the parcel fabric that is suitable for integration into public-facing web maps or apps.

Thank you!

[DrewDowling]

I can think of a couple of ways of doing it with different pros and cons

1. Publish the individual parcel fabric feature classes to your portal as a read only feature service. In the source project remove the fields you don't want to be public and filter out the historic features for each feature class. Don't add the fabric layer, just the parcel types.
2. Create a database level view of the sde.default version and publish that as a feature service.
3. Create a process that copies the sde.default version from your edit database to a read only FGDB or EGDB and publish from there.

No.1 is the easiest but it can slow editing performance if the public web service is heavily used.

No.2 can also slow editing performance but it allows integration with 3rd party, non Esri clients such as SSRS or Asset Management systems. Also the performance of the published service might be slower. 

No.3 requires some script or other process to be designed and scheduled. Data in the read only copy is only as current as the last time the script ran. But it won't affect editing performance and can be integrated with 3rd party apps. 

Here is some SQL to create a view of a branch versioned feature class that is part of a parcel fabric, No.2 above

CREATE view [t].[taxparcels_bVW] as
SELECT 
  a.* 
FROM 
   t.TAXPARCELS a

-- Start branch versioning magic
WHERE a.GDB_ARCHIVE_OID IN (
    SELECT GDB_ARCHIVE_OID 
    FROM 
      (
        SELECT 
          GDB_ARCHIVE_OID,  
          ROW_NUMBER() OVER( PARTITION BY OBJECTID ORDER BY GDB_FROM_DATE DESC ) AS rn_, 
          GDB_IS_DELETE 
        FROM t.TAXPARCELS 
        WHERE GDB_BRANCH_ID IN (0)
          AND GDB_FROM_DATE <= GETUTCDATE()
   --       AND OBJECTID IN (
   --         SELECT OBJECTID 
   --         FROM t.TAXPARCELS
			--WHERE (RetiredByRecord IS NULL)
   --       ) 	  
      ) AS br__ 
    WHERE 
      br__.rn_ = 1 
      AND br__.GDB_IS_DELETE = 0 
	) 
-- End branch versioning magic

  -- Filter from sub result set
  AND RetiredByRecord IS NULL
  AND IsSeed <> 1

GO

  *Edit - Some useful links

https://community.esri.com/t5/arcgis-parcel-fabric-documents/query-branch-versioned-parcels/ta-p/105...

https://github.com/Esri/developer-support/tree/master/arcsde-sql/sql-server/branch-versioning