diff --git a/runtime/main/extend/systemplugin/napi/ohos_data_DataShareResultSet.js b/runtime/main/extend/systemplugin/napi/ohos_data_DataShareResultSet.js
index c444525d..26f86584 100644
--- a/runtime/main/extend/systemplugin/napi/ohos_data_DataShareResultSet.js
+++ b/runtime/main/extend/systemplugin/napi/ohos_data_DataShareResultSet.js
@@ -15,6 +15,13 @@
 
 import {paramMock} from "../utils"
 
+export const DataType = {
+  TYPE_NULL: 0,
+  TYPE_LONG: 1,
+  TYPE_DOUBLE: 2,
+  TYPE_STRING: 3,
+  TYPE_BLOB: 4
+};
 export const DataShareResultSetMock = {
   columnNames: "[PC Preview] unknow columnNames",
   columnCount: "[PC Preview] unknow columnCount",
diff --git a/runtime/main/extend/systemplugin/napi/ohos_data_dataSharePredicates.js b/runtime/main/extend/systemplugin/napi/ohos_data_dataSharePredicates.js
index 7febfb95..a803141b 100644
--- a/runtime/main/extend/systemplugin/napi/ohos_data_dataSharePredicates.js
+++ b/runtime/main/extend/systemplugin/napi/ohos_data_dataSharePredicates.js
@@ -15,7 +15,7 @@
 
 import { paramMock } from "../utils"
 export function mockDataSharePredicates() {
-    const DataSharePredicatesClass = class DataSharePredicate {
+    const DataSharePredicatesClass = class DataSharePredicates {
       constructor() {
         this.equalTo = function (...args) {
           console.warn("DataSharePredicates.equalTo interface mocked in the Previewer. How this interface works on the" +