diff --git a/backlogger/io.py b/backlogger/meas_io.py
similarity index 59%
rename from backlogger/io.py
rename to backlogger/meas_io.py
index a24491f..f7aa0cb 100644
--- a/backlogger/io.py
+++ b/backlogger/meas_io.py
@@ -31,27 +31,58 @@ def write_measurement(path, ensemble, measurement, uuid, code, parameter_file):
     for corr in measurement.keys():
         file = path + "/archive/" + ensemble + "/" + corr + '/' + uuid + '.json.gz'
         files.append(file)
+        known_meas = None
         if not os.path.exists(path + "/archive/" + ensemble + "/" + corr):
             os.makedirs(path + "/archive/" + ensemble + "/" + corr)
-
-        for subkey in measurement[corr].keys():
-            meas_path = file + "::" + subkey
-
+        else:
             if os.path.exists(file):
                 dl.unlock(file, dataset=path)
                 known_meas = pj.load_json_dict(file)
-                for key in measurement[corr].keys():
-                    known_meas[key] = measurement[corr][key]
+
+        for subkey in measurement[corr].keys():
+            meas_path = file + "::" + subkey
+            if known_meas is not None:
+                known_meas[subkey] = measurement[corr][subkey]
                 # this should be only set if something changed.
             else:
                 known_meas = measurement[corr]
 
             if c.execute("SELECT * FROM backlogs WHERE path = ?", (meas_path,)).fetchone() is not None:
-                c.execute("UPDATE backlogs SET name = ?, ensemble = ?, code = ?, project = ?, parameters = ?, parameter_file = ?, updated_at = datetime('now') WHERE path = ?", (meas_path, ))
+                c.execute("UPDATE backlogs SET updated_at = datetime('now') WHERE path = ?", (meas_path, ))
             else:
                 c.execute("INSERT INTO backlogs (name, ensemble, code, path, project, parameters, parameter_file, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?, ?, datetime('now'), datetime('now'))", (corr, ensemble, code, meas_path, uuid, get_specs(corr + "/" + subkey, parameters), parameter_file))
         conn.commit()
         pj.dump_dict_to_json(measurement[corr], file)
     files.append(path + '/backlogger.db')
     conn.close()
-    dl.save(files, message="Add measurement to database", dataset=path)
+    dl.save(files, message="Add measurements to database", dataset=path)
+
+
+def get_record(path, meas_path):
+    file = meas_path.split("::")[0]
+    sub_key = meas_path.split("::")[1]
+    dl.get(file, dataset=path)
+    return pj.load_json_dict(file)[sub_key]
+
+
+def drop_record(path, meas_path):
+    file = meas_path.split("::")[0]
+    sub_key = meas_path.split("::")[1]
+    dl.unlock(path + '/backlogger.db', dataset=path)
+    conn = sqlite3.connect(path + '/backlogger.db')
+    c = conn.cursor()
+    if c.execute("SELECT * FROM backlogs WHERE path = ?", (meas_path, )).fetchone() is not None:
+        c.execute("DELETE FROM backlogs WHERE path = ?", (meas_path, ))
+    else:
+        raise ValueError("This measurement does not exist as an entry!")
+
+    conn.commit()
+    known_meas = pj.load_json_dict(file)
+    if sub_key in known_meas:
+        del known_meas[sub_key]
+        dl.unlock(file, dataset=path)
+        pj.dump_dict_to_json(known_meas, file)
+        dl.save([path + '/backlogger.db', file], message="Drop measurements to database", dataset=path)
+        return
+    else:
+        raise ValueError("This measurement does not exist as a file!")