update docs

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>

en/application-dev/database/database-datashare-guidelines.md

@@ -13,7 +13,7 @@ The **DataShare** module allows an application to manage its own data and share
 |query?(uri: string, predicates: DataSharePredicates, columns: Array<string>, callback: AsyncCallback<Object>): void|Queries data from the database.|
 |delete?(uri: string, predicates: DataSharePredicates, callback: AsyncCallback<number>): void|Deletes data from the database.|
 
-For more information, see [DataShareExtensionAbility](../reference/apis/js-apis-application-dataShareExtensionAbility.md).
+For details about the data provider APIs, see [DataShareExtensionAbility](../reference/apis/js-apis-application-DataShareExtensionAbility.md).
 
 **Table 2** APIs of the data consumer
 
@@ -29,7 +29,7 @@ For more information, see [DataShareHelper](../reference/apis/js-apis-data-dataS
 
 ## When to Use
 
-There are two roles in **DataShare**: 
+There are two roles in **DataShare**:
 
 - Data provider: adds, deletes, modifies, and queries data, opens files, and shares data.
 - Data consumer: accesses the data provided by the provider using **DataShareHelper**.
@@ -38,16 +38,16 @@ Examples are given below.
 
 ### Data Provider Application Development (Only for System Applications)
 
-1. Import the dependencies.
+1. Import dependencies.
 
    ```ts
    import Extension from '@ohos.application.DataShareExtensionAbility';
-   import rdb from '@ohos.data.rdb';
+   import rdb from '@ohos.data.relationalStore';
    import fileIo from '@ohos.fileio';
    import dataSharePredicates from '@ohos.data.dataSharePredicates';
    ```
 
-2. Override **DataShareExtensionAbility** APIs based on actual requirements. For example, if the data provider provides only data query, override only the **query()** API.
+2. Override **DataShareExtensionAbility** APIs based on actual requirements. For example, if the data provider provides only data query, override only **query()**.
 
 3. Implement the data provider services. For example, implement data storage of the data provider by using a database, reading and writing files, or accessing the network.
 
@@ -64,13 +64,14 @@ Examples are given below.
    export default class DataShareExtAbility extends Extension {
        private rdbStore_;
        
-   	// Override the onCreate() API.
+   	// Override onCreate().
        onCreate(want, callback) {
            result = this.context.cacheDir + '/datashare.txt'
-           // Create an RDB.
+           // Create an RDB store.
            rdb.getRdbStore(this.context, {
-               name: DB_NAME
-           }, 1, function (err, data) {
+               name: DB_NAME,
+               securityLevel: rdb.SecurityLevel.S1
+           }, function (err, data) {
                rdbStore = data;
                rdbStore.executeSql(DDL_TBL_CREATE, [], function (err) {
                    console.log('DataShareExtAbility onCreate, executeSql done err:' + JSON.stringify(err));
@@ -79,7 +80,7 @@ Examples are given below.
            });
        }
    
-   	// Override the query() API.
+   	// Override query().
        query(uri, predicates, columns, callback) {
            if (predicates == null || predicates == undefined) {
                console.info('invalid predicates');
@@ -108,8 +109,8 @@ Examples are given below.
    | ------------ | ------------------------------------------------------------ |
    | "name"       | Ability name, corresponding to the **ExtensionAbility** class name derived from **Ability**.        |
    | "type"       | Ability type. The value is **dataShare**, indicating the development is based on the **datashare** template.|
-   | "uri"        | URI used for communication. It is the unique identifier for the data consumer to connect to the provider. |
-   | "visible"    | Whether it is visible to other applications. Data sharing is allowed only when the value is **true**. |
+   | "uri"        | URI used for communication. It is the unique identifier for the data consumer to connect to the provider.               |
+   | "visible"    | Whether it is visible to other applications. Data sharing is allowed only when the value is **true**.|
 
    **module.json5 example**
 
@@ -132,7 +133,7 @@ Examples are given below.
 1. Import dependencies.
 
    ```ts
-   import UIAbility from '@ohos.app.ability.UIAbility';
+   import Ability from '@ohos.application.Ability';
    import dataShare from '@ohos.data.dataShare';
    import dataSharePredicates from '@ohos.data.dataSharePredicates';
    ```
@@ -150,7 +151,7 @@ Examples are given below.
    let dsHelper;
    let abilityContext;
    
-   export default class EntryAbility extends UIAbility {
+   export default class MainAbility extends Ability {
    	onWindowStageCreate(windowStage) {
    		abilityContext = this.context;
    		dataShare.createDataShareHelper(abilityContext, dseUri, (err, data)=>{
@@ -180,7 +181,7 @@ Examples are given below.
    dsHelper.query(dseUri, predicates, valArray, (err, data) => {
      console.log("dsHelper query result: " + data);
    });
-   // Delete specified data.
+   // Delete data.
    dsHelper.delete(dseUri, predicates, (err, data) => {
      console.log("dsHelper delete result: " + data);   
    });

en/application-dev/reference/apis/js-apis-application-DataShareExtensionAbility.md → en/application-dev/reference/apis/js-apis-application-dataShareExtensionAbility.md

-# @ohos.application.DataShareExtensionAbility
+# @ohos.application.DataShareExtensionAbility (DataShare Extension Ability)
 
 The **DataShareExtensionAbility** module provides data share services based on the Extension ability.
 
@@ -22,12 +22,11 @@ import DataShareExtensionAbility from '@ohos.application.DataShareExtensionAbili
 The URIs are in the following format:
 
 **Scheme://authority/path** 
-
 - *Scheme*: scheme name, which has a fixed value of **datashare** for the **DataShare** module.
 - *authority*: [userinfo@]host[:port]
-  - *userinfo*: login information, which can be left unspecified.
-  - *host*: server address. It is the target device ID for cross-device access and empty for local device access.
-  - *port*: port number of the server, which can be left unspecified.
+    - *userinfo*: login information, which can be left unspecified.
+    - *host*: server address. It is the target device ID for cross-device access and empty for local device access.
+    - *port*: port number of the server, which can be left unspecified.
 - *path*: **DataShare** identifier and the resource path. The **DataShare** identifier is mandatory, and the resource path is optional.
 
 Example:
@@ -76,7 +75,8 @@ let rdbStore;
 export default class DataShareExtAbility extends DataShareExtensionAbility {
     onCreate(want, callback) {
         rdb.getRdbStore(this.context, {
-            name: DB_NAME
+            name: DB_NAME,
+            securityLevel: rdb.SecurityLevel.S1
         }, function (err, data) {
             console.log('getRdbStore done, data : ' + data);
             rdbStore = data;