diff --git a/en/application-dev/database/database-mdds-guidelines.md b/en/application-dev/database/database-mdds-guidelines.md
index 2205df9ceffb51c3c6cb7816f6d11784ba532b20..8cec5ca111cd814d599d159ab7b333259f669ea8 100644
--- a/en/application-dev/database/database-mdds-guidelines.md
+++ b/en/application-dev/database/database-mdds-guidelines.md
@@ -50,18 +50,41 @@ The following uses a single KV store as an example to describe the development p
    This permission must also be granted by the user when the application is started for the first time. The sample code is as follows:
 
     ```js
+    // FA model
     import featureAbility from '@ohos.ability.featureAbility';
-	
+
     function grantPermission() {
-        console.info('grantPermission');
-        let context = featureAbility.getContext();
-        context.requestPermissionsFromUser(['ohos.permission.DISTRIBUTED_DATASYNC'], 666, function (result) {
-            console.info(`result.requestCode=${result.requestCode}`)
-    
-        })
-        console.info('end grantPermission');
+    console.info('grantPermission');
+    let context = featureAbility.getContext();
+    context.requestPermissionsFromUser(['ohos.permission.DISTRIBUTED_DATASYNC'], 666).then((data) => {
+        console.info('success: ${data}');
+    }).catch((error) => {
+        console.info('failed: ${error}');
+    })
     }
-    
+
+    grantPermission();
+
+    // Stage model
+    import Ability from '@ohos.application.Ability';
+
+    let context = null;
+
+    function grantPermission() {
+    class MainAbility extends Ability {
+        onWindowStageCreate(windowStage) {
+        let context = this.context;
+        }
+    }
+
+    let permissions = ['ohos.permission.DISTRIBUTED_DATASYNC'];
+    context.requestPermissionsFromUser(permissions).then((data) => {
+        console.log('success: ${data}');
+    }).catch((error) => {
+        console.log('failed: ${error}');
+    });
+    }
+
     grantPermission();
     ```
 
@@ -73,25 +96,39 @@ The following uses a single KV store as an example to describe the development p
    The sample code is as follows:
 
    ```js
+   // Obtain the context of the FA model.
+   import featureAbility from '@ohos.ability.featureAbility';
+   let context = featureAbility.getContext();
+
+   // Obtain the context of the stage model.
+   import AbilityStage from '@ohos.application.Ability';
+   let context = null;
+   class MainAbility extends AbilityStage{
+      onWindowStageCreate(windowStage){
+        context = this.context;
+      }
+   }
+
    let kvManager;
    try {
      const kvManagerConfig = {
        bundleName: 'com.example.datamanagertest',
        userInfo: {
+         context:context,
          userId: '0',
          userType: distributedData.UserType.SAME_USER_ID
        }
      }
      distributedData.createKVManager(kvManagerConfig, function (err, manager) {
        if (err) {
-         console.log("createKVManager err: " + JSON.stringify(err));
+         console.log('Failed to create KVManager: ${error}');
          return;
        }
-       console.log("createKVManager success");
+       console.log('Created KVManager successfully');
        kvManager = manager;
      });
    } catch (e) {
-     console.log("An unexpected error occurred. Error: " + e);
+     console.log('An unexpected error occurred. Error:  ${e}');
    }
    ```
 
@@ -115,14 +152,14 @@ The following uses a single KV store as an example to describe the development p
      };
      kvManager.getKVStore('storeId', options, function (err, store) {
        if (err) {
-         console.log("getKVStore err: " + JSON.stringify(err));
+         console.log('Failed to get KVStore: ${err}');
          return;
        }
-       console.log("getKVStore success");
+       console.log('Got KVStore successfully');
        kvStore = store;
      });
    } catch (e) {
-     console.log("An unexpected error occurred. Error: " + e);
+     console.log('An unexpected error occurred. Error:  ${e}');
    }
    ```
 
@@ -136,7 +173,7 @@ The following uses a single KV store as an example to describe the development p
 
    ```js
    kvStore.on('dataChange', distributedData.SubscribeType.SUBSCRIBE_TYPE_ALL, function (data) {
-       console.log("dataChange callback call data: " + JSON.stringify(data));
+       console.log("dataChange callback call data:  ${data}");
    });
    ```
 
@@ -153,13 +190,13 @@ The following uses a single KV store as an example to describe the development p
    try {
        kvStore.put(KEY_TEST_STRING_ELEMENT, VALUE_TEST_STRING_ELEMENT, function (err, data) {
            if (err != undefined) {
-               console.log("put err: " + JSON.stringify(err));
+               console.log('Failed to put data:  ${error}');
                return;
            }
-           console.log("put success");
+           console.log('Put data successfully');
        });
    } catch (e) {
-       console.log("An unexpected error occurred. Error: " + e);
+       console.log('An unexpected error occurred. Error:  ${e}');
    }
    ```
 
@@ -176,16 +213,16 @@ The following uses a single KV store as an example to describe the development p
    try {
        kvStore.put(KEY_TEST_STRING_ELEMENT, VALUE_TEST_STRING_ELEMENT, function (err, data) {
            if (err != undefined) {
-               console.log("put err: " + JSON.stringify(err));
+               console.log('Failed to put data:  ${error}');
                return;
            }
-           console.log("put success");
+           console.log('Put data successfully');
            kvStore.get(KEY_TEST_STRING_ELEMENT, function (err, data) {
-               console.log("get success data: " + data);
+               console.log('Got data successfully:  ${data}');
            });
        });
    } catch (e) {
-       console.log("An unexpected error occurred. Error: " + e);
+       console.log('An unexpected error occurred. Error:  ${e}');
    }
    ```
 
@@ -204,7 +241,7 @@ The following uses a single KV store as an example to describe the development p
    
    let devManager;
    // Create deviceManager.
-   deviceManager.createDeviceManager("bundleName", (err, value) => {
+   deviceManager.createDeviceManager('bundleName', (err, value) => {
        if (!err) {
            devManager = value;
            // deviceIds is obtained by deviceManager by calling getTrustedDeviceListSync().
@@ -219,7 +256,7 @@ The following uses a single KV store as an example to describe the development p
                // 1000 indicates that the maximum delay is 1000 ms.
                kvStore.sync(deviceIds, distributedData.SyncMode.PUSH_ONLY, 1000);
            } catch (e) {
-                console.log("An unexpected error occurred. Error: " + e);
+                console.log('An unexpected error occurred. Error:  ${e}');
            }
        }
    });
diff --git a/en/application-dev/reference/apis/js-apis-distributed-data.md b/en/application-dev/reference/apis/js-apis-distributed-data.md
index 09a68ffcbed741da9913afd1a9aff717f5f755c8..b1ceeabca8640799415596532a757f67d62e92c8 100644
--- a/en/application-dev/reference/apis/js-apis-distributed-data.md
+++ b/en/application-dev/reference/apis/js-apis-distributed-data.md
@@ -500,7 +500,7 @@ Obtains the IDs of all KV stores that are created by [getKVStore()](#getkvstore)
 | Name | Type| Mandatory | Description                   |
 | -----  | ------  | ----  | ----------------------- |
 | appId  | string  | Yes   | Bundle name of the app that invokes the KV store.    |
-| callback | AsyncCallback<string[]> | Yes  |Callback used to return the KV store IDs obtained. |
+| callback | AsyncCallback<string[]> | Yes  |Callback invoked to return the KV store IDs obtained. |
 
 **Example**
 
@@ -600,7 +600,7 @@ Unsubscribes from service status changes. This API returns the result synchronou
 | Name | Type| Mandatory | Description                   |
 | -----  | ------  | ----  | ----------------------- |
 | event  | string | Yes   | Event to unsubscribe from. The value is **distributedDataServiceDie**, which indicates a service status change event.|
-| deathCallback  | Callback<void>  | No   | Callback for the service status change event. |
+| deathCallback  | Callback<void>  | No   | Callback for the service status change event.|
 
 
 **Example**
@@ -1008,7 +1008,7 @@ try {
     }).catch((err) => {
         console.log('getResultSet failed: ' + err);
     });
-    const moved5 = resultSet.move();
+    const moved5 = resultSet.move(1);
     console.log("move succeed:" + moved5);
 } catch (e) {
     console.log("move failed: " + e);
@@ -1048,7 +1048,7 @@ try {
     }).catch((err) => {
         console.log('getResultSet failed: ' + err);
     });
-    const moved6 = resultSet.moveToPosition();
+    const moved6 = resultSet.moveToPosition(1);
     console.log("moveToPosition succeed: " + moved6);
 } catch (e) {
     console.log("moveToPosition failed: " + e);
@@ -2520,7 +2520,7 @@ Deletes a backup file. This API uses an asynchronous callback to return the resu
 
 | Name  | Type                                          | Mandatory| Description                                                        |
 | -------- | -------------------------------------------------- | ---- | ------------------------------------------------------------ |
-| files    | Array<string>                                | Yes  | Name of the backup file to delete. The value cannot be empty or exceed [MAX_KEY_LENGTH](#constants).|
+| files    | Array<string>                                | Yes  | Name of the backup file to delete. The value cannot be empty or exceed [MAX_KEY_LENGTH](#constants). |
 | callback | AsyncCallback<Array<[string, number]>> | Yes  | Callback invoked to return the name of the backup file deleted and the operation result.                |
 
 **Example**
@@ -2609,7 +2609,7 @@ kvStore.on('dataChange', distributedData.SubscribeType.SUBSCRIBE_TYPE_LOCAL, fun
 
 on(event: 'syncComplete', syncCallback: Callback<Array<[string, number]>>): void
 
-Subscribes to the synchronization complete events. This API returns the result synchronously.
+Subscribes to synchronization complete events. This API returns the result synchronously.
 
 **System capability**: SystemCapability.DistributedDataManager.KVStore.Core
 
@@ -3615,7 +3615,7 @@ Obtains the KV pairs that match the specified **Query** object. This API uses an
 | Name | Type| Mandatory | Description                   |
 | -----  | ------  | ----  | ----------------------- |
 | query  |[Query](#query8)   | Yes   |Key prefix to match. |
-| callback  |AsyncCallback<[Entry](#entry)[]>   | Yes   |Callback used to return the KV pairs obtained. |
+| callback  |AsyncCallback<[Entry](#entry)[]>   | Yes   |Callback invoked to return the KV pairs obtained. |
 
 **Example**
 
@@ -4270,7 +4270,7 @@ try {
 
 on(event: 'syncComplete', syncCallback: Callback<Array<[string, number]>>): void
 
-Subscribes to the synchronization complete events. This API returns the result synchronously.
+Subscribes to synchronization complete events. This API returns the result synchronously.
 
 **System capability**: SystemCapability.DistributedDataManager.KVStore.Core
 
@@ -4306,7 +4306,7 @@ try {
 
 off(event: 'syncComplete', syncCallback?: Callback<Array<[string, number]>>): void
 
-Unsubscribes from the synchronization complete events. This API returns the result synchronously.
+Unsubscribes from synchronization complete events. This API returns the result synchronously.
 
 **System capability**: SystemCapability.DistributedDataManager.KVStore.Core
 
@@ -4404,7 +4404,7 @@ class KvstoreModel {
 
 sync(deviceIds: string[], mode: SyncMode, delayMs?: number): void
 
-Synchronizes the KV store manually. For details about the synchronization modes of the distributed data service, see [Distributed Data Service Overview] (../../database/database-mdds-overview.md).
+Synchronizes the KV store manually. For details about the synchronization modes of the distributed data service, see [Distributed Data Service Overview](../../database/database-mdds-overview.md).
 
 **Required permissions**: ohos.permission.DISTRIBUTED_DATASYNC
 
@@ -4617,7 +4617,7 @@ Obtains a string value that matches the specified device ID and key. This API us
 | -----  | ------   | ----  | ----------------------- |
 | deviceId  |string  | Yes   |ID of the target device.   |
 | key       |string  | Yes   |Key to match.   |
-| callback  |AsyncCallback<boolean\|string\|number\|Uint8Array>  | Yes   |Callback used to return the value obtained.   |
+| callback  |AsyncCallback<boolean\|string\|number\|Uint8Array>  | Yes   |Callback invoked to return the value obtained.   |
 
 **Example**
 
@@ -4696,7 +4696,7 @@ Obtains all KV pairs that match the specified device ID and key prefix. This API
 | -----  | ------   | ----  | ----------------------- |
 | deviceId  |string  | Yes   |ID of the target device.   |
 | keyPrefix |string  | Yes   |Key prefix to match.   |
-| callback  |AsyncCallback<[Entry](#entry)[]>  | Yes |Callback used to return the KV pairs obtained.   |
+| callback  |AsyncCallback<[Entry](#entry)[]>  | Yes |Callback invoked to return the KV pairs obtained.   |
 
 **Example**
 
@@ -4802,7 +4802,7 @@ Obtains the KV pairs that match the specified **Query** object. This API uses an
 | Name | Type| Mandatory | Description                   |
 | -----  | ------   | ----  | ----------------------- |
 | query  |[Query](#query8)  | Yes   |**Query** object to match.   |
-| callback |AsyncCallback<[Entry](#entry)[]>  | Yes   |Callback used to return the KV pairs obtained.   |
+| callback |AsyncCallback<[Entry](#entry)[]>  | Yes   |Callback invoked to return the KV pairs obtained.   |
 
 **Example**
 
@@ -5699,7 +5699,7 @@ try {
 
 sync(deviceIds: string[], mode: SyncMode, delayMs?: number): void
 
-Synchronizes the KV store manually. For details about the synchronization modes of the distributed data service, see [Distributed Data Service Overview] (../../database/database-mdds-overview.md).
+Synchronizes the KV store manually. For details about the synchronization modes of the distributed data service, see [Distributed Data Service Overview](../../database/database-mdds-overview.md).
 
 **Required permissions**: ohos.permission.DISTRIBUTED_DATASYNC
 
@@ -5738,7 +5738,7 @@ try {
 
 sync(deviceIds: string[], query: Query, mode: SyncMode, delayMs?: number): void
 
-Synchronizes the KV store manually. This API returns the result synchronously. For details about the synchronization modes of the distributed data service, see [Distributed Data Service Overview] (../../database/database-mdds-overview.md).
+Synchronizes the KV store manually. This API returns the result synchronously. For details about the synchronization modes of the distributed data service, see [Distributed Data Service Overview](../../database/database-mdds-overview.md).
 
 **Required permissions**: ohos.permission.DISTRIBUTED_DATASYNC
 
@@ -5816,7 +5816,7 @@ try {
 
 off(event: 'syncComplete', syncCallback?: Callback<Array<[string, number]>>): void
 
-Unsubscribes from the synchronization complete events. This API returns the result synchronously.
+Unsubscribes from synchronization complete events. This API returns the result synchronously.
 
 **System capability**: SystemCapability.DistributedDataManager.KVStore.Core