diff --git a/pipestat/backends/dbbackend.py b/pipestat/backends/dbbackend.py
index 2ec36295..9c516b8a 100644
--- a/pipestat/backends/dbbackend.py
+++ b/pipestat/backends/dbbackend.py
@@ -552,7 +552,8 @@ def retrieve_multiple(
             "limit": limit,
             "offset": offset,
             "record_identifiers": record_identifier,
-            "result_identifiers": result_identifier,
+            "result_identifiers": result_identifier
+            or list(self.parsed_schema.results_data.keys()) + [CREATED_TIME] + [MODIFIED_TIME],
             "records": record_list,
         }
 
diff --git a/pipestat/backends/filebackend.py b/pipestat/backends/filebackend.py
index 14516c24..e14636b3 100644
--- a/pipestat/backends/filebackend.py
+++ b/pipestat/backends/filebackend.py
@@ -462,7 +462,42 @@ def retrieve_multiple(
         limit: Optional[int] = 1000,
         offset: Optional[int] = 0,
     ) -> Union[Any, Dict[str, Any]]:
-        pass
+        record_list = []
+
+        if result_identifier == []:
+            result_identifier = (
+                list(self.parsed_schema.results_data.keys()) + [CREATED_TIME] + [MODIFIED_TIME]
+            )
+        if record_identifier == [] or record_identifier is None:
+            record_identifier = list(
+                self._data.data[self.pipeline_name][self.pipeline_type].keys()
+            )
+
+        for k in list(self._data.data[self.pipeline_name][self.pipeline_type].keys())[
+            offset : offset + limit
+        ]:
+            if k in record_identifier:
+                retrieved_record = {}
+                retrieved_results = {}
+                for key, value in self._data.data[self.pipeline_name][self.pipeline_type][
+                    k
+                ].items():
+                    if key in result_identifier:
+                        retrieved_results.update({key: value})
+
+                if retrieved_results != {}:
+                    retrieved_record.update({k: retrieved_results})
+                    record_list.append(retrieved_record)
+
+        records_dict = {
+            "count": len(record_list),
+            "limit": limit,
+            "offset": offset,
+            "record_identifiers": record_identifier,
+            "result_identifiers": result_identifier,
+            "records": record_list,
+        }
+        return records_dict
 
     def retrieve(
         self,
diff --git a/tests/test_pipestat.py b/tests/test_pipestat.py
index a51844d4..617a0124 100644
--- a/tests/test_pipestat.py
+++ b/tests/test_pipestat.py
@@ -394,7 +394,7 @@ def test_retrieve_basic(
             # Test Retrieve Whole Record
             assert isinstance(psm.retrieve(record_identifier=rec_id), Mapping)
 
-    @pytest.mark.parametrize("backend", ["db"])
+    @pytest.mark.parametrize("backend", ["file", "db"])
     def test_retrieve_multiple(
         self,
         config_file_path,
@@ -445,11 +445,11 @@ def test_retrieve_multiple(
 
             # Test combinations of empty list for either record or result identifiers.
             results = psm.retrieve(record_identifier=r_ids, result_identifier=[])
-            assert results["result_identifiers"] is None
+            assert len(results["result_identifiers"]) == 9
             assert len(results["records"]) == 2
 
             results = psm.retrieve(record_identifier=[], result_identifier=[])
-            assert results["result_identifiers"] is None
+            assert len(results["result_identifiers"]) == 9
             assert len(results["records"]) == 3
 
             results = psm.retrieve(record_identifier=[], result_identifier=res_id)