From 24596bac0ba24648dfaec81b336ae34bb93c81c0 Mon Sep 17 00:00:00 2001
From: test <1029079951@qq.com>
Date: Mon, 14 Feb 2022 18:21:12 +0800
Subject: [PATCH 1/2] Signed-off-by: test <1029079951@qq.com>

 Changes to be committed:
	modified:   js-apis-data-ability.md
	modified:   js-apis-data-rdb.md
	modified:   js-apis-data-resultset.md
	modified:   js-apis-data-storage.md
	modified:   js-apis-distributed-data.md
---
 .../reference/apis/js-apis-data-ability.md    |   2 +
 .../reference/apis/js-apis-data-rdb.md        | 160 +++++++++---------
 .../reference/apis/js-apis-data-resultset.md  |   2 +
 .../reference/apis/js-apis-data-storage.md    |   3 +
 .../apis/js-apis-distributed-data.md          |   3 +
 5 files changed, 86 insertions(+), 84 deletions(-)

diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-ability.md b/zh-cn/application-dev/reference/apis/js-apis-data-ability.md
index 7b82a0b98d1..c6aaa70183f 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-ability.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-ability.md
@@ -10,6 +10,8 @@
 import dataAbility from '@ohos.data.dataAbility'
 ```
 
+## 系统能力
+SystemCapability.DistributedDataManager.DataShare.Consumer
 
 ## 权限
 
diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md b/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md
index 225abf90184..a0adcbae489 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md
@@ -7,53 +7,52 @@
 ## 导入模块
 
 ```
-import data_rdb from '@ohos.data.rdb'
+import dataRdb from '@ohos.data.rdb'
 ```
 
+## 系统能力
+SystemCapability.DistributedDataManager.RelationalStore.Core
+
 
 ## 权限
 
 无
 
 
-## data_rdb.getRdbStore
+## dataRdb.getRdbStore
 
-getRdbStore(context: Context, config: StoreConfig, version: number, callback: AsyncCallback&lt;RdbStore&gt;): void
+getRdbStore(config: StoreConfig, version: number, callback: AsyncCallback&lt;RdbStore&gt;): void
 
 获得一个相关的RdbStore，操作关系型数据库，用户可以根据自己的需求配置RdbStore的参数，然后通过RdbStore调用相关接口可以执行相关的数据操作，结果以callback形式返回。
 
 - 参数：
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | context | Context | 是 | 应用程序或功能的上下文 |
   | config | [StoreConfig](#storeconfig) | 是 | 与此RDB存储相关的数据库配置。 |
   | version | number | 是 | 数据库版本。 |
   | callback | AsyncCallback&lt;[RdbStore](#rdbstore)&gt; | 是 | 指定callback回调函数。返回一个RdbStore。 |
 
 - 示例：
   ```
-  import Ability from '@ohos.application.Ability'
-  import data_rdb from '@ohos.data.rdb'
-  export default class MainAbility extends Ability {
-      const STORE_CONFIG = { name: "RdbTest.db"}
-      const SQL_CREATE_TABLE = "CREATE TABLE IF NOT EXISTS EMPLOYEE (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL, AGE INTEGER, SALARY REAL, CODES BLOB)"
-      data_rdb.getRdbStore(this.context, STORE_CONFIG, 1, function (err, rdbStore) {
-          rdbStore.executeSql(SQL_CREATE_TABLE)
-          console.info(TAG + 'create table done.')
-      })
-  }
+  import dataRdb from '@ohos.data.rdb'
+  const STORE_CONFIG = { name: "RdbTest.db"}
+  const SQL_CREATE_TABLE = "CREATE TABLE IF NOT EXISTS EMPLOYEE (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL, AGE INTEGER, SALARY REAL, CODES BLOB)"
+  dataRdb.getRdbStore(STORE_CONFIG, 1, function (err, rdbStore) {
+      rdbStore.executeSql(SQL_CREATE_TABLE)
+      console.info(TAG + 'create table done.')
+  })
   ```
 
-## data_rdb.getRdbStore
 
-getRdbStore(context: Context, config: StoreConfig, version: number): Promise&lt;RdbStore&gt;
+## dataRdb.getRdbStore
+
+getRdbStore(config: StoreConfig, version: number): Promise&lt;RdbStore&gt;
 
 获得一个相关的RdbStore，操作关系型数据库，用户可以根据自己的需求配置RdbStore的参数，然后通过RdbStore调用相关接口可以执行相关的数据操作，结果以Promise形式返回。
 
 - 参数：
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | context | Context | 是 | 应用程序或功能的上下文 |
   | config | [StoreConfig](#storeconfig) | 是 | 与此RDB存储相关的数据库配置。 |
   | version | number | 是 | 数据库版本。 |
 
@@ -64,53 +63,47 @@ getRdbStore(context: Context, config: StoreConfig, version: number): Promise&lt;
 
 - 示例：
   ```
-  import Ability from '@ohos.application.Ability'
-  import data_rdb from '@ohos.data.rdb'
-  export default class MainAbility extends Ability {
-      const STORE_CONFIG = { name: "RdbTest.db" }
-      const SQL_CREATE_TABLE = "CREATE TABLE IF NOT EXISTS EMPLOYEE (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL, AGE INTEGER, SALARY REAL, CODES BLOB)"
-      let promise = data_rdb.getRdbStore(this.context, STORE_CONFIG, 1);
-      promise.then(async (rdbStore) => {
-          await rdbStore.executeSql(SQL_CREATE_TABLE, null)
-      }).catch((err) => {
-          expect(null).assertFail();
-      })
-  }
+  import dataRdb from '@ohos.data.rdb'
+  const STORE_CONFIG = { name: "RdbTest.db" }
+  const SQL_CREATE_TABLE = "CREATE TABLE IF NOT EXISTS EMPLOYEE (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL, AGE INTEGER, SALARY REAL, CODES BLOB)"
+  let promise = dataRdb.getRdbStore(STORE_CONFIG, 1);
+  promise.then(async (rdbStore) => {
+      await rdbStore.executeSql(SQL_CREATE_TABLE, null)
+  }).catch((err) => {
+      expect(null).assertFail();
+  })
   ```
 
-## data_rdb.deleteRdbStore
 
-deleteRdbStore(context: Context, name: string, callback: AsyncCallback&lt;void&gt;): void
+## dataRdb.deleteRdbStore
+
+deleteRdbStore(name: string, callback: AsyncCallback&lt;void&gt;): void
 
 删除数据库，结果以callback形式返回。
 
 - 参数：
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | context | Context | 是 | 应用程序或功能的上下文 |
   | name | string | 是 | 数据库名称。 |
   | callback | AsyncCallback&lt;void&gt; | 是 | 指定callback回调函数。如果数据库已删除，则为true；否则返回false。 |
 
 - 示例：
   ```
-  import Ability from '@ohos.application.Ability'
-  import data_rdb from '@ohos.data.rdb'
-  export default class MainAbility extends Ability {
-      data_rdb.deleteRdbStore(this.context, "RdbTest.db", function (err, rdbStore) {
-          console.info(TAG + 'delete store done.')})
-  }
+  import dataRdb from '@ohos.data.rdb'
+  dataRdb.deleteRdbStore("RdbTest.db", function (err, rdbStore) {
+      console.info(TAG + 'delete store done.')})
   ```
 
-## data_rdb.deleteRdbStore
 
-deleteRdbStore(context: Context, name: string): Promise&lt;void&gt;
+## dataRdb.deleteRdbStore
+
+deleteRdbStore(name: string): Promise&lt;void&gt;
 
 使用指定的数据库文件配置删除数据库，结果以Promise形式返回。
 
 - 参数：
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | context | Context | 是 | 应用程序或功能的上下文 |
   | name | string | 是 | 数据库名称。 |
 
 - 返回值：
@@ -120,16 +113,14 @@ deleteRdbStore(context: Context, name: string): Promise&lt;void&gt;
 
 - 示例：
   ```
-  import Ability from '@ohos.application.Ability'
-  import data_rdb from '@ohos.data.rdb'
-  export default class MainAbility extends Ability {
-      let promise = data_rdb.deleteRdbStore(this.context, "RdbTest.db")
-      promise.then(()=>{
-          console.info(TAG + 'delete store done.')
-      })
-  }
+  import dataRdb from '@ohos.data.rdb'
+  let promise = dataRdb.deleteRdbStore("RdbTest.db")
+  promise.then(()=>{
+      console.info(TAG + 'delete store done.')
+  })
   ```
 
+
 ## RdbPredicates
 
 表示关系型数据库（RDB）的谓词。该类确定RDB中条件表达式的值是true还是false。
@@ -150,7 +141,8 @@ constructor(name: string)
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  import dataRdb from '@ohos.data.rdb'
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   ```
 
 
@@ -175,7 +167,7 @@ equalTo(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "lisi")
   ```
 
@@ -201,7 +193,7 @@ notEqualTo(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.notEqualTo("NAME", "lisi")
   ```
 
@@ -221,7 +213,7 @@ beginWrap(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "lisi")
       .beginWrap()
       .equalTo("AGE", 18)
@@ -246,7 +238,7 @@ endWrap(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "lisi")
       .beginWrap()
       .equalTo("AGE", 18)
@@ -271,7 +263,7 @@ or(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
       .or()
       .equalTo("NAME", "Rose")
@@ -293,7 +285,7 @@ and(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
       .and()
       .equalTo("SALARY", 200.5)
@@ -321,7 +313,7 @@ contains(field: string, value: string): RdbPredicat
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.contains("NAME", "os")
   ```
 
@@ -347,7 +339,7 @@ beginsWith(field: string, value: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.beginsWith("NAME", "os")
   ```
 
@@ -373,7 +365,7 @@ endsWith(field: string, value: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.endsWith("NAME", "se")
   ```
 
@@ -398,7 +390,7 @@ isNull(field: string): RdbPredicates
 
 - 示例
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.isNull("NAME")
   ```
 
@@ -423,7 +415,7 @@ isNotNull(field: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.isNotNull("NAME")
   ```
 
@@ -449,7 +441,7 @@ like(field: string, value: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.like("NAME", "%os%")
   ```
 
@@ -475,7 +467,7 @@ glob(field: string, value: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.glob("NAME", "?h*g")
   ```
 
@@ -502,7 +494,7 @@ between(field: string, low: ValueType, high: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.between("AGE", 10, 50)
   ```
 
@@ -529,7 +521,7 @@ notBetween(field: string, low: ValueType, high: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.notBetween("AGE", 10, 50)
   ```
 
@@ -555,7 +547,7 @@ greaterThan(field: string, value: ValueType): RdbPredicatesgr
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.greaterThan("AGE", 18)
   ```
 
@@ -581,7 +573,7 @@ lessThan(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.lessThan("AGE", 20)
   ```
 
@@ -608,7 +600,7 @@ greaterThanOrEqualTo(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.greaterThanOrEqualTo("AGE", 18)
   ```
 
@@ -635,7 +627,7 @@ lessThanOrEqualTo(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.lessThanOrEqualTo("AGE", 20)
   ```
 
@@ -661,7 +653,7 @@ orderByAsc(field: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.orderByAsc("NAME")
   ```
 
@@ -687,7 +679,7 @@ orderByDesc(field: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.orderByDesc("AGE")
   ```
 
@@ -707,7 +699,7 @@ distinct(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose").distinct("NAME")
   let resultSet = await rdbStore.query(predicates, ["NAME"])
   ```
@@ -733,7 +725,7 @@ limitAs(value: number): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose").limitAs(3)
   ```
 
@@ -758,7 +750,7 @@ offsetAs(rowOffset: number): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose").offsetAs(3)
   ```
 
@@ -783,7 +775,7 @@ groupBy(fields: Array&lt;string&gt;): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.groupBy(["AGE", "NAME"])
   ```
 
@@ -808,7 +800,7 @@ indexedBy(indexName: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.indexedBy("SALARY_INDEX")
   ```
 
@@ -835,7 +827,7 @@ in(field: string, value: Array&lt;ValueType&gt;): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.in("AGE", [18, 20])
   ```
 
@@ -862,7 +854,7 @@ notIn(field: string, value: Array&lt;ValueType&gt;): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.notIn("NAME", ["Lisa", "Rose"])
   ```
 
@@ -952,7 +944,7 @@ update(values: ValuesBucket, rdbPredicates: RdbPredicates, callback: AsyncCallba
       "SALARY": 200.5,
       "CODES": new Uint8Array([1, 2, 3, 4, 5]),
   }
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
   rdbStore.update(valueBucket, predicates, function (err, ret) {
       console.log(TAG + "updated row count: " + changedRows)})
@@ -984,7 +976,7 @@ update(values: ValuesBucket, rdbPredicates: RdbPredicates):Promise&lt;number&gt;
       "SALARY": 200.5,
       "CODES": new Uint8Array([1, 2, 3, 4, 5]),
   }
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
   let promise = rdbStore.update(valueBucket, predicates)
   promise.then(async (ret) => {
@@ -1009,7 +1001,7 @@ delete(rdbPredicates: RdbPredicates, callback: AsyncCallback&lt;number&gt;):void
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
   rdbStore.delete(predicates, function (err, rows) {
       console.log(TAG + "delete rows: " + rows)})
@@ -1034,7 +1026,7 @@ delete(rdbPredicates: RdbPredicates):Promise&lt;number&gt;
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
   let promise = rdbStore.delete(predicates)
   promise.then((rows) => {
@@ -1058,7 +1050,7 @@ query(rdbPredicates: RdbPredicates, columns: Array&lt;string&gt;, callback: Asyn
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose")
   rdbStore.query(predicates, ["ID", "NAME", "AGE", "SALARY", "CODES"], function (err, resultSet) {
       console.log(TAG + "resultSet column names:" + resultSet.columnNames)
@@ -1085,7 +1077,7 @@ query(rdbPredicates: RdbPredicates, columns?: Array&lt;string&gt;):Promise&lt;Re
 
 - 示例：
   ```
-  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
+  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose")
   let promise = rdbStore.query(predicates, ["ID", "NAME", "AGE", "SALARY", "CODES"])
   promise.then((resultSet) => {
diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-resultset.md b/zh-cn/application-dev/reference/apis/js-apis-data-resultset.md
index b2bd32db35f..d2f4faabdce 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-resultset.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-resultset.md
@@ -3,6 +3,8 @@
 > ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
 > 本模块首批接口从API version 7开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。
 
+## 系统能力
+SystemCapability.DistributedDataManager.RelationalStore.Core
 
 ## 使用说明
 
diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-storage.md b/zh-cn/application-dev/reference/apis/js-apis-data-storage.md
index 37f09d0cbf1..9cb3b9343b1 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-storage.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-storage.md
@@ -13,6 +13,9 @@
 import dataStorage from '@ohos.data.storage'
 ```
 
+## 系统能力
+SystemCapability.DistributedDataManager.Preference.Core
+
 
 ## 权限
 
diff --git a/zh-cn/application-dev/reference/apis/js-apis-distributed-data.md b/zh-cn/application-dev/reference/apis/js-apis-distributed-data.md
index 8c11ab5057b..1b19878734e 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-distributed-data.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-distributed-data.md
@@ -3,6 +3,9 @@
 >![](../../public_sys-resources/icon-note.gif) **说明：** 
 >本模块首批接口从API version 7开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。
 
+## 系统能力
+SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
+
 ## 导入模块<a name="s56d19203690d4782bfc74069abb6bd71"></a>
 
 ```
-- 
Gitee


From 73eb346d5ccba987f8167c9530e410edeefc1a58 Mon Sep 17 00:00:00 2001
From: test <1029079951@qq.com>
Date: Mon, 14 Feb 2022 18:33:07 +0800
Subject: [PATCH 2/2] Signed-off-by: test <1029079951@qq.com>

 Changes to be committed:
	modified:   js-apis-data-rdb.md
---
 .../reference/apis/js-apis-data-rdb.md        | 162 ++++++++++--------
 1 file changed, 86 insertions(+), 76 deletions(-)

diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md b/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md
index a0adcbae489..5cdaa16d6c1 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md
@@ -3,56 +3,59 @@
 > ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
 > 本模块首批接口从API version 7开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。
 
+## 系统能力
+SystemCapability.DistributedDataManager.RelationalStore.Core
 
 ## 导入模块
 
 ```
-import dataRdb from '@ohos.data.rdb'
+import data_rdb from '@ohos.data.rdb'
 ```
 
-## 系统能力
-SystemCapability.DistributedDataManager.RelationalStore.Core
-
 
 ## 权限
 
 无
 
 
-## dataRdb.getRdbStore
+## data_rdb.getRdbStore
 
-getRdbStore(config: StoreConfig, version: number, callback: AsyncCallback&lt;RdbStore&gt;): void
+getRdbStore(context: Context, config: StoreConfig, version: number, callback: AsyncCallback&lt;RdbStore&gt;): void
 
 获得一个相关的RdbStore，操作关系型数据库，用户可以根据自己的需求配置RdbStore的参数，然后通过RdbStore调用相关接口可以执行相关的数据操作，结果以callback形式返回。
 
 - 参数：
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
+  | context | Context | 是 | 应用程序或功能的上下文 |
   | config | [StoreConfig](#storeconfig) | 是 | 与此RDB存储相关的数据库配置。 |
   | version | number | 是 | 数据库版本。 |
   | callback | AsyncCallback&lt;[RdbStore](#rdbstore)&gt; | 是 | 指定callback回调函数。返回一个RdbStore。 |
 
 - 示例：
   ```
-  import dataRdb from '@ohos.data.rdb'
-  const STORE_CONFIG = { name: "RdbTest.db"}
-  const SQL_CREATE_TABLE = "CREATE TABLE IF NOT EXISTS EMPLOYEE (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL, AGE INTEGER, SALARY REAL, CODES BLOB)"
-  dataRdb.getRdbStore(STORE_CONFIG, 1, function (err, rdbStore) {
-      rdbStore.executeSql(SQL_CREATE_TABLE)
-      console.info(TAG + 'create table done.')
-  })
+  import Ability from '@ohos.application.Ability'
+  import data_rdb from '@ohos.data.rdb'
+  export default class MainAbility extends Ability {
+      const STORE_CONFIG = { name: "RdbTest.db"}
+      const SQL_CREATE_TABLE = "CREATE TABLE IF NOT EXISTS EMPLOYEE (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL, AGE INTEGER, SALARY REAL, CODES BLOB)"
+      data_rdb.getRdbStore(this.context, STORE_CONFIG, 1, function (err, rdbStore) {
+          rdbStore.executeSql(SQL_CREATE_TABLE)
+          console.info(TAG + 'create table done.')
+      })
+  }
   ```
 
+## data_rdb.getRdbStore
 
-## dataRdb.getRdbStore
-
-getRdbStore(config: StoreConfig, version: number): Promise&lt;RdbStore&gt;
+getRdbStore(context: Context, config: StoreConfig, version: number): Promise&lt;RdbStore&gt;
 
 获得一个相关的RdbStore，操作关系型数据库，用户可以根据自己的需求配置RdbStore的参数，然后通过RdbStore调用相关接口可以执行相关的数据操作，结果以Promise形式返回。
 
 - 参数：
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
+  | context | Context | 是 | 应用程序或功能的上下文 |
   | config | [StoreConfig](#storeconfig) | 是 | 与此RDB存储相关的数据库配置。 |
   | version | number | 是 | 数据库版本。 |
 
@@ -63,47 +66,53 @@ getRdbStore(config: StoreConfig, version: number): Promise&lt;RdbStore&gt;
 
 - 示例：
   ```
-  import dataRdb from '@ohos.data.rdb'
-  const STORE_CONFIG = { name: "RdbTest.db" }
-  const SQL_CREATE_TABLE = "CREATE TABLE IF NOT EXISTS EMPLOYEE (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL, AGE INTEGER, SALARY REAL, CODES BLOB)"
-  let promise = dataRdb.getRdbStore(STORE_CONFIG, 1);
-  promise.then(async (rdbStore) => {
-      await rdbStore.executeSql(SQL_CREATE_TABLE, null)
-  }).catch((err) => {
-      expect(null).assertFail();
-  })
+  import Ability from '@ohos.application.Ability'
+  import data_rdb from '@ohos.data.rdb'
+  export default class MainAbility extends Ability {
+      const STORE_CONFIG = { name: "RdbTest.db" }
+      const SQL_CREATE_TABLE = "CREATE TABLE IF NOT EXISTS EMPLOYEE (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL, AGE INTEGER, SALARY REAL, CODES BLOB)"
+      let promise = data_rdb.getRdbStore(this.context, STORE_CONFIG, 1);
+      promise.then(async (rdbStore) => {
+          await rdbStore.executeSql(SQL_CREATE_TABLE, null)
+      }).catch((err) => {
+          expect(null).assertFail();
+      })
+  }
   ```
 
+## data_rdb.deleteRdbStore
 
-## dataRdb.deleteRdbStore
-
-deleteRdbStore(name: string, callback: AsyncCallback&lt;void&gt;): void
+deleteRdbStore(context: Context, name: string, callback: AsyncCallback&lt;void&gt;): void
 
 删除数据库，结果以callback形式返回。
 
 - 参数：
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
+  | context | Context | 是 | 应用程序或功能的上下文 |
   | name | string | 是 | 数据库名称。 |
   | callback | AsyncCallback&lt;void&gt; | 是 | 指定callback回调函数。如果数据库已删除，则为true；否则返回false。 |
 
 - 示例：
   ```
-  import dataRdb from '@ohos.data.rdb'
-  dataRdb.deleteRdbStore("RdbTest.db", function (err, rdbStore) {
-      console.info(TAG + 'delete store done.')})
+  import Ability from '@ohos.application.Ability'
+  import data_rdb from '@ohos.data.rdb'
+  export default class MainAbility extends Ability {
+      data_rdb.deleteRdbStore(this.context, "RdbTest.db", function (err, rdbStore) {
+          console.info(TAG + 'delete store done.')})
+  }
   ```
 
+## data_rdb.deleteRdbStore
 
-## dataRdb.deleteRdbStore
-
-deleteRdbStore(name: string): Promise&lt;void&gt;
+deleteRdbStore(context: Context, name: string): Promise&lt;void&gt;
 
 使用指定的数据库文件配置删除数据库，结果以Promise形式返回。
 
 - 参数：
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
+  | context | Context | 是 | 应用程序或功能的上下文 |
   | name | string | 是 | 数据库名称。 |
 
 - 返回值：
@@ -113,14 +122,16 @@ deleteRdbStore(name: string): Promise&lt;void&gt;
 
 - 示例：
   ```
-  import dataRdb from '@ohos.data.rdb'
-  let promise = dataRdb.deleteRdbStore("RdbTest.db")
-  promise.then(()=>{
-      console.info(TAG + 'delete store done.')
-  })
+  import Ability from '@ohos.application.Ability'
+  import data_rdb from '@ohos.data.rdb'
+  export default class MainAbility extends Ability {
+      let promise = data_rdb.deleteRdbStore(this.context, "RdbTest.db")
+      promise.then(()=>{
+          console.info(TAG + 'delete store done.')
+      })
+  }
   ```
 
-
 ## RdbPredicates
 
 表示关系型数据库（RDB）的谓词。该类确定RDB中条件表达式的值是true还是false。
@@ -141,8 +152,7 @@ constructor(name: string)
 
 - 示例：
   ```
-  import dataRdb from '@ohos.data.rdb'
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   ```
 
 
@@ -167,7 +177,7 @@ equalTo(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "lisi")
   ```
 
@@ -193,7 +203,7 @@ notEqualTo(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.notEqualTo("NAME", "lisi")
   ```
 
@@ -213,7 +223,7 @@ beginWrap(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "lisi")
       .beginWrap()
       .equalTo("AGE", 18)
@@ -238,7 +248,7 @@ endWrap(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "lisi")
       .beginWrap()
       .equalTo("AGE", 18)
@@ -263,7 +273,7 @@ or(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
       .or()
       .equalTo("NAME", "Rose")
@@ -285,7 +295,7 @@ and(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
       .and()
       .equalTo("SALARY", 200.5)
@@ -313,7 +323,7 @@ contains(field: string, value: string): RdbPredicat
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.contains("NAME", "os")
   ```
 
@@ -339,7 +349,7 @@ beginsWith(field: string, value: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.beginsWith("NAME", "os")
   ```
 
@@ -365,7 +375,7 @@ endsWith(field: string, value: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.endsWith("NAME", "se")
   ```
 
@@ -390,7 +400,7 @@ isNull(field: string): RdbPredicates
 
 - 示例
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.isNull("NAME")
   ```
 
@@ -415,7 +425,7 @@ isNotNull(field: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.isNotNull("NAME")
   ```
 
@@ -441,7 +451,7 @@ like(field: string, value: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.like("NAME", "%os%")
   ```
 
@@ -467,7 +477,7 @@ glob(field: string, value: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.glob("NAME", "?h*g")
   ```
 
@@ -494,7 +504,7 @@ between(field: string, low: ValueType, high: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.between("AGE", 10, 50)
   ```
 
@@ -521,7 +531,7 @@ notBetween(field: string, low: ValueType, high: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.notBetween("AGE", 10, 50)
   ```
 
@@ -547,7 +557,7 @@ greaterThan(field: string, value: ValueType): RdbPredicatesgr
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.greaterThan("AGE", 18)
   ```
 
@@ -573,7 +583,7 @@ lessThan(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.lessThan("AGE", 20)
   ```
 
@@ -600,7 +610,7 @@ greaterThanOrEqualTo(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.greaterThanOrEqualTo("AGE", 18)
   ```
 
@@ -627,7 +637,7 @@ lessThanOrEqualTo(field: string, value: ValueType): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.lessThanOrEqualTo("AGE", 20)
   ```
 
@@ -653,7 +663,7 @@ orderByAsc(field: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.orderByAsc("NAME")
   ```
 
@@ -679,7 +689,7 @@ orderByDesc(field: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.orderByDesc("AGE")
   ```
 
@@ -699,7 +709,7 @@ distinct(): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose").distinct("NAME")
   let resultSet = await rdbStore.query(predicates, ["NAME"])
   ```
@@ -725,7 +735,7 @@ limitAs(value: number): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose").limitAs(3)
   ```
 
@@ -750,7 +760,7 @@ offsetAs(rowOffset: number): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose").offsetAs(3)
   ```
 
@@ -775,7 +785,7 @@ groupBy(fields: Array&lt;string&gt;): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.groupBy(["AGE", "NAME"])
   ```
 
@@ -800,7 +810,7 @@ indexedBy(indexName: string): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.indexedBy("SALARY_INDEX")
   ```
 
@@ -827,7 +837,7 @@ in(field: string, value: Array&lt;ValueType&gt;): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.in("AGE", [18, 20])
   ```
 
@@ -854,7 +864,7 @@ notIn(field: string, value: Array&lt;ValueType&gt;): RdbPredicates
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.notIn("NAME", ["Lisa", "Rose"])
   ```
 
@@ -944,7 +954,7 @@ update(values: ValuesBucket, rdbPredicates: RdbPredicates, callback: AsyncCallba
       "SALARY": 200.5,
       "CODES": new Uint8Array([1, 2, 3, 4, 5]),
   }
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
   rdbStore.update(valueBucket, predicates, function (err, ret) {
       console.log(TAG + "updated row count: " + changedRows)})
@@ -976,7 +986,7 @@ update(values: ValuesBucket, rdbPredicates: RdbPredicates):Promise&lt;number&gt;
       "SALARY": 200.5,
       "CODES": new Uint8Array([1, 2, 3, 4, 5]),
   }
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
   let promise = rdbStore.update(valueBucket, predicates)
   promise.then(async (ret) => {
@@ -1001,7 +1011,7 @@ delete(rdbPredicates: RdbPredicates, callback: AsyncCallback&lt;number&gt;):void
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
   rdbStore.delete(predicates, function (err, rows) {
       console.log(TAG + "delete rows: " + rows)})
@@ -1026,7 +1036,7 @@ delete(rdbPredicates: RdbPredicates):Promise&lt;number&gt;
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Lisa")
   let promise = rdbStore.delete(predicates)
   promise.then((rows) => {
@@ -1050,7 +1060,7 @@ query(rdbPredicates: RdbPredicates, columns: Array&lt;string&gt;, callback: Asyn
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose")
   rdbStore.query(predicates, ["ID", "NAME", "AGE", "SALARY", "CODES"], function (err, resultSet) {
       console.log(TAG + "resultSet column names:" + resultSet.columnNames)
@@ -1077,7 +1087,7 @@ query(rdbPredicates: RdbPredicates, columns?: Array&lt;string&gt;):Promise&lt;Re
 
 - 示例：
   ```
-  let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
+  let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
   predicates.equalTo("NAME", "Rose")
   let promise = rdbStore.query(predicates, ["ID", "NAME", "AGE", "SALARY", "CODES"])
   promise.then((resultSet) => {
-- 
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