Delete data from data store having some conditions to column similar to where clause in RDBMS

You will need to first fetch the primary key values from that table using queryEntity, and then delete the rows based on that key.

could u pls elaborate ?

can we do it in expression ?

No. This is process only.

Its giving me a "Reaction Tree" as output. Also data is not getting deleted. What's the issue ?

deleteFromDatastoreEntities will work under save into configuration only.

I think we need a short intermission here. How much experience do you have with Appian, and what is your goal?

I am new to Appian Stefan.

Hi Deepak, I am trying it with save into but still the same issue,

a!cardLayout(
  contents: a!gridField(
    label: "Suites",
    labelPosition: "ABOVE",
    data: 'recordType!{0ab1955b-75e1-4395-87a8-d16e55c29b74}BTUA_AllSuites_RecordType',
    columns: {
      a!gridColumn(
        label: "Suite Name",
        sortField: 'recordType!{0ab1955b-75e1-4395-87a8-d16e55c29b74}BTUA_AllSuites_RecordType.fields.{7b3f7cbc-6a7e-4604-9b65-b1073301ce9e}suitename',
        value: a!linkField(
          links: {
            a!dynamicLink(
              label: fv!row['recordType!{0ab1955b-75e1-4395-87a8-d16e55c29b74}BTUA_AllSuites_RecordType.fields.{7b3f7cbc-6a7e-4604-9b65-b1073301ce9e}suitename'],
              saveInto: {
                a!deleteFromDataStoreEntities(
                  dataToDelete: {
                    a!entityDataIdentifiers(
                      entity: cons!BTUA_v2_Script_tbl_constant,
                      identifiers: {"6722c859-76b4-4aa8-ac82-3b3f93f903ba"}
                    )
                  }

                ),
                a!save(ri!isSuiteSelected,true()),
                a!save(ri!isScriptSelected, false())
               
                
              }
            )
          }
          
        )
      )
    },
    validations: {},
    refreshAfter: "RECORD_ACTION",
    showSearchBox: true,
    showRefreshButton: false,
    recordActions: {
      a!recordActionItem(
        action: 'recordType!{0ab1955b-75e1-4395-87a8-d16e55c29b74}BTUA_AllSuites_RecordType.actions.{a25985f0-edf5-48c3-9a5c-af500c96668e}newBTUA_AllSuites_RecordType'
      )
    },
    actionsDisplay: "LABEL_AND_ICON"
  )
)

Image View:

Could you pls tell me what's the exact issue ?

Hi, could you please show me the record image?

I have used the data store entity instead of record

6722c859-76b4-4aa8-ac82-3b3f93f903ba is this the primary key value?

6722c859-76b4-4aa8-ac82-3b3f93f903ba is this the primary key value?

yes,

6722c859-76b4-4aa8-ac82-3b3f93f903ba is the primary key 

Is the entity which you are taking is correct?