update docs

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

en/application-dev/reference/apis/Readme-EN.md

@@ -202,7 +202,7 @@
   - [@ohos.data.distributedDataObject](js-apis-data-distributedobject.md)
   - [@ohos.data.distributedKVStore](js-apis-distributedKVStore.md)
   - [@ohos.data.preferences](js-apis-data-preferences.md)
-  - [@ohos.data.rdb](js-apis-data-rdb.md)
+  - [@ohos.data.relationalStore](js-apis-data-relationalStore.md)
   - [@ohos.data.ValuesBucket](js-apis-data-valuesBucket.md)
   - data/rdb
     - [resultSet](js-apis-data-resultset.md)
@@ -339,6 +339,7 @@
   - [@ohos.bundleState](js-apis-deviceUsageStatistics.md)
   - [@ohos.bytrace](js-apis-bytrace.md)
   - [@ohos.data.storage](js-apis-data-storage.md)
+  - [@ohos.data.rdb](js-apis-data-rdb.md)
   - [@ohos.data.distributedData](js-apis-distributed-data.md)
   - [@ohos.distributedBundle](js-apis-Bundle-distributedBundle.md)
   - [@ohos.document](js-apis-document.md)

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

 # @ohos.application.DataShareExtensionAbility
 
-The **DataShareExtensionAbility** module provides extension abilities for data share services.
+The **DataShareExtensionAbility** module provides data share services based on the Extension ability.
 
 >**NOTE**
 >
@@ -17,6 +17,27 @@ The **DataShareExtensionAbility** module provides extension abilities for data s
 import DataShareExtensionAbility from '@ohos.application.DataShareExtensionAbility'
 ```
 
+## URI Naming Rule
+
+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.
+- *path*: **DataShare** identifier and the resource path. The **DataShare** identifier is mandatory, and the resource path is optional.
+
+Example:
+
+- URI without the resource path:<br>**datashare:///com.samples.datasharetest.DataShare**
+
+- URI with the resource path:<br>**datashare:///com.samples.datasharetest.DataShare/DB00/TBL00**
+
+**com.samples.datasharetest.DataShare** is the data share identifier, and **DB00/TBL00** is the resource path.
+
 ## Attributes
 
 **System capability**: SystemCapability.DistributedDataManager.DataShare.Provider
@@ -43,7 +64,7 @@ Called by the server to initialize service logic when the DataShare client conne
 **Example**
 
 ```ts
-import rdb from '@ohos.data.rdb';
+import rdb from '@ohos.data.relationalStore';
 
 let DB_NAME = "DB00.db";
 let TBL_NAME = "TBL00";
@@ -56,7 +77,7 @@ export default class DataShareExtAbility extends DataShareExtensionAbility {
     onCreate(want, callback) {
         rdb.getRdbStore(this.context, {
             name: DB_NAME
-        }, 1, function (err, data) {
+        }, function (err, data) {
             console.log('getRdbStore done, data : ' + data);
             rdbStore = data;
             rdbStore.executeSql(DDL_TBL_CREATE, [], function (err) {
@@ -89,7 +110,7 @@ Inserts data into the database. This API can be overridden as required.
 **Example**
 
 ```ts
-import rdb from '@ohos.data.rdb';
+import rdb from '@ohos.data.relationalStore';
 
 let DB_NAME = "DB00.db";
 let TBL_NAME = "TBL00";
@@ -134,7 +155,7 @@ Updates data in the database. This API can be overridden as required.
 **Example**
 
 ```ts
-import rdb from '@ohos.data.rdb';
+import rdb from '@ohos.data.relationalStore';
 
 let DB_NAME = "DB00.db";
 let TBL_NAME = "TBL00";
@@ -176,7 +197,7 @@ Deletes data from the database. This API can be overridden as required.
 **Example**
 
 ```ts
-import rdb from '@ohos.data.rdb';
+import rdb from '@ohos.data.relationalStore';
 
 let DB_NAME = "DB00.db";
 let TBL_NAME = "TBL00";
@@ -219,7 +240,7 @@ Queries data from the database. This API can be overridden as required.
 **Example**
 
 ```ts
-import rdb from '@ohos.data.rdb';
+import rdb from '@ohos.data.relationalStore';
 
 let DB_NAME = "DB00.db";
 let TBL_NAME = "TBL00";
@@ -264,7 +285,7 @@ Batch inserts data into the database. This API is called by the server and can b
 **Example**
 
 ```ts
-import rdb from '@ohos.data.rdb';
+import rdb from '@ohos.data.relationalStore';
 
 let DB_NAME = "DB00.db";
 let TBL_NAME = "TBL00";

en/application-dev/reference/apis/js-apis-data-DataShareResultSet.md

-# Data Share Result Set
+# @ohos.data.dataShareResultSet
 
 The **DataShareResultSet** module provides APIs for accessing the result set obtained from the database. You can access the values in the specified rows or the value of the specified data type.
 

en/application-dev/reference/errorcodes/errorcode-datashare.md

+# DataShare Error Codes
+
+## 15700010 Failed to Create a DataShareHelper
+
+**Error Message**
+
+The dataShareHelper is not initialized successfully.
+
+**Description**
+
+The **DataShareHelper** class fails to be created.
+
+**Possible Causes**
+
+1. The **uri** specified in **createDataHelper** is incorrect.
+2. The **context** specified in **createDataHelper** is incorrect. **DataShare** supports only the stage model.
+
+**Solution**
+
+1. Obtain the correct URI.
+2. Check that the context of the stage model is used.