Retrieve every data from database without one field using rule

You can use the 'selection' parameter in the a!query() to pass all the other field names except status. 

I have added 'selection' paramater in the a!query. And also passed all fields excep status.

But it shows an error like in above template.

My Updated Code:

cast('type!{urn:com:appian:types:HSM}HSM_Elements?list',
a!queryEntity(
entity: cons!HSM_Entity,
query: a!query(
selection:a!querySelection(
Columns: a!queryColumn(
field:{"S_No","Employee_Name","Employee_Id","Employee_Email_Id","Query","Comments","Date"},
)
),
pagingInfo: a!pagingInfo(
startIndex: 1,
batchSize: 5000,
sort: a!sortInfo(
field:"S_No",
ascending: true,
)
)
)
).data
)

A queryColumn can only have one column name. And hence you will have to add multiple query columns. 
Check the code below..

cast('type!{urn:com:appian:types:HSM}HSM_Elements?list',
  a!queryEntity(
    entity: cons!HSM_Entity,
    query: a!query(
      selection:a!querySelection(
        columns: {
          a!queryColumn(
            field:"S_No",
          ),
          a!queryColumn(
            field:"Employee_Name",
          ),
          a!queryColumn(
            field:"Employee_Id",
          )
        }
      ),
      pagingInfo: a!pagingInfo(
        startIndex: 1,
        batchSize: 5000,
        sort: a!sortInfo(
          field:"S_No",
          ascending: true,
        )
      )
    )
  ).data
)

Thank You for your support Harshit.

It works.

Great. If it has worked for you, please consider accepting the answer. It helps other people look for the solution quickly and also saves time for other contributors as they'll know the author has already found a solution to the problem. 

Great. If it has worked for you, please consider accepting the answer. It helps other people look for the solution quickly and also saves time for other contributors as they'll know the author has already found a solution to the problem.