Test the SQL Server User's Credentials for the Database using .UDL files

1.create note pad and save As .udl extension files in to your system
2.Open that file and enter user name and password
3.Click on the Test Connection.

 

App Management Service for Sharepoint 2013 SP Desinger Workflows

I've created SP 2013 simple workflow using SP Designer 2013. I've set up my environment as described in msdn documentation. But when I'm trying to deploy the solution I'm receiving following exception:

Microsoft.SharePoint.SPEndpointAddressNotFoundException: There are no addresses available for this
application.
   at Microsoft.SharePoint.SPRoundRobinServiceLoadBalancer.BeginOperation()
   at Microsoft.SharePoint.Administration.SPServiceApplicationProxyBase`1.ExecuteOnChannel(Boolean
requireDelegation, Action`1 codeBlock)
   at Microsoft.SharePoint.AppManagement.AppManagementServiceApplicationProxy.GetScaleOutDatabaseMap()
   at Microsoft.SharePoint.SPScaleOutDatabaseMap.GetMapCacheEntries

Solution:

Just resolved.

I found following message in ULS:
"There are no instances of the App Management Service started on any server in this farm. Ensure that at
least one instance is started on an application server in the farm using the Services on Server page in
Central Administration."
I went to CA -> System Settings -> Services on server and started App Management Service. Then performed
iisreset and the workflow deployed successfully.

 

Delete Sharepoint Published Infopath Column using sharepoint Manager

The Infopath form has published in the Sharepoint Form library . After published the promoted fields is added in the respective form library. You can not remove the column because it is read only.

Solution:

You can open Sharepoint Manager and Open the Web,Form Library and set the specific column Allow deletion to yes, Save and delete the column.