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提交 35fb5d8d 编写于 作者: A annie_wangli
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update docs 

Signed-off-by: Nannie_wangli <annie.wangli@huawei.com>
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en/application-dev/database/database-relational-guidelines.md
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...@@ -13,12 +13,12 @@ The following table describes the APIs available for creating and deleting an RD ...@@ -13,12 +13,12 @@ The following table describes the APIs available for creating and deleting an RD
**Table 1** APIs for creating and deleting an RDB store **Table 1** APIs for creating and deleting an RDB store
| Class| API| Description| | API| Description|
| -------- | -------- | -------- | | -------- | -------- |
| dataRdb | getRdbStore(config:&nbsp;StoreConfig,&nbsp;version:&nbsp;number,&nbsp;callback:&nbsp;AsyncCallback&lt;RdbStore&gt;):&nbsp;void | Obtains an RDB store. This method uses a callback to return the result. You can set parameters for the RDB store based on service requirements, and then call APIs to perform data operations.<br>-&nbsp;**config**: configuration of the RDB store.<br>-&nbsp;**version**: RDB version.<br>-&nbsp;**callback**: callback invoked to return the RDB store obtained.| |getRdbStore(config:&nbsp;StoreConfig,&nbsp;version:&nbsp;number,&nbsp;callback:&nbsp;AsyncCallback&lt;RdbStore&gt;):&nbsp;void | Obtains an RDB store. This method uses a callback to return the result. You can set parameters for the RDB store based on service requirements, and then call APIs to perform data operations.<br>-&nbsp;**config**: configuration of the RDB store.<br>-&nbsp;**version**: RDB version.<br>-&nbsp;**callback**: callback invoked to return the RDB store obtained.|
| dataRdb | getRdbStore(config:&nbsp;StoreConfig,&nbsp;version:&nbsp;number):&nbsp;Promise&lt;RdbStore&gt; | Obtains an RDB store. This method uses a promise to return the result. You can set parameters for the RDB store based on service requirements, and then call APIs to perform data operations.<br>-&nbsp;**config**: configuration of the RDB store.<br>-&nbsp;**version**: RDB version.| |getRdbStore(config:&nbsp;StoreConfig,&nbsp;version:&nbsp;number):&nbsp;Promise&lt;RdbStore&gt; | Obtains an RDB store. This method uses a promise to return the result. You can set parameters for the RDB store based on service requirements, and then call APIs to perform data operations.<br>-&nbsp;**config**: configuration of the RDB store.<br>-&nbsp;**version**: RDB version.|
| dataRdb | deleteRdbStore(name:&nbsp;string,&nbsp;callback:&nbsp;AsyncCallback&lt;void&gt;):&nbsp;void | Deletes an RDB store. This method uses a callback to return the result. <br>-&nbsp;**name**: RDB store to delete.<br>-&nbsp;**callback**: callback invoked to return the result. If the RDB store is deleted, **true** will be returned. Otherwise, **false** will be returned.| |deleteRdbStore(name:&nbsp;string,&nbsp;callback:&nbsp;AsyncCallback&lt;void&gt;):&nbsp;void | Deletes an RDB store. This method uses a callback to return the result. <br>-&nbsp;**name**: RDB store to delete.<br>-&nbsp;**callback**: callback invoked to return the result. If the RDB store is deleted, **true** will be returned. Otherwise, **false** will be returned.|
| dataRdb | deleteRdbStore(name:&nbsp;string):&nbsp;Promise&lt;void&gt; | Deletes an RDB store. This method uses a promise to return the result.<br>-&nbsp;**name**: RDB store to delete.| | deleteRdbStore(name:&nbsp;string):&nbsp;Promise&lt;void&gt; | Deletes an RDB store. This method uses a promise to return the result.<br>-&nbsp;**name**: RDB store to delete.|
**Managing Data in an RDB Store** **Managing Data in an RDB Store**
...@@ -26,6 +26,7 @@ The RDB provides APIs for inserting, deleting, updating, and querying data in th ...@@ -26,6 +26,7 @@ The RDB provides APIs for inserting, deleting, updating, and querying data in th
- **Inserting data** - **Inserting data**
The RDB provides APIs for inserting data through a **ValuesBucket** in a data table. If the data is inserted, the row ID of the data inserted will be returned; otherwise, **-1** will be returned. The RDB provides APIs for inserting data through a **ValuesBucket** in a data table. If the data is inserted, the row ID of the data inserted will be returned; otherwise, **-1** will be returned.
**Table 2** APIs for inserting data **Table 2** APIs for inserting data
| Class| API| Description| | Class| API| Description|
...@@ -76,42 +77,42 @@ The RDB provides **RdbPredicates** for you to set database operation conditions. ...@@ -76,42 +77,42 @@ The RDB provides **RdbPredicates** for you to set database operation conditions.
| Class| API| Description| | Class| API| Description|
| -------- | -------- | -------- | | -------- | -------- | -------- |
| RdbPredicates |inDevices(devices: Array<string>): RdbPredicates | Specifies remote devices on the network with RDB stores to be synchronized.<br>-&nbsp;**devices**: IDs of the remote devices on the network.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates |inDevices(devices: Array<string>): RdbPredicates | Specifies remote devices on the network with RDB stores to be synchronized.<br>-&nbsp;**devices**: IDs of the remote devices on the network.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates |inAllDevices(): RdbPredicates | Connects to all remote devices on the network with RDB stores to be synchronized.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates |inAllDevices(): RdbPredicates | Connects to all remote devices on the network with RDB stores to be synchronized.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | equalTo(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value equal to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | equalTo(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value equal to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | notEqualTo(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value not equal to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | notEqualTo(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value not equal to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | beginWrap():&nbsp;RdbPredicates | Adds a left parenthesis to the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** with a left parenthesis. | | RdbPredicates | beginWrap():&nbsp;RdbPredicates | Adds a left parenthesis to the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** with a left parenthesis.|
| RdbPredicates | endWrap():&nbsp;RdbPredicates | Adds a right parenthesis to the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** with a right parenthesis. | | RdbPredicates | endWrap():&nbsp;RdbPredicates | Adds a right parenthesis to the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** with a right parenthesis.|
| RdbPredicates | or():&nbsp;RdbPredicates | Adds the OR condition to the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** with the OR condition. | | RdbPredicates | or():&nbsp;RdbPredicates | Adds the OR condition to the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** with the OR condition.|
| RdbPredicates | and():&nbsp;RdbPredicates | Adds the AND condition to the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** with the AND condition. | | RdbPredicates | and():&nbsp;RdbPredicates | Adds the AND condition to the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** with the AND condition.|
| RdbPredicates | contains(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicats | Sets the **RdbPredicates** to match a string containing the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified string. | | RdbPredicates | contains(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicats | Sets the **RdbPredicates** to match a string containing the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified string.|
| RdbPredicates | beginsWith(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match a string that starts with the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified string. | | RdbPredicates | beginsWith(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match a string that starts with the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | endsWith(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match a string that ends with the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified string. | | RdbPredicates | endsWith(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match a string that ends with the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | isNull(field:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field whose value is null.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | isNull(field:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field whose value is null.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | isNotNull(field:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field whose value is not null.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | isNotNull(field:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field whose value is not null.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | like(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match a string that is similar to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified string. | | RdbPredicates | like(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match a string that is similar to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | glob(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the specified string.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified string. | | RdbPredicates | glob(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the specified string.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | between(field:&nbsp;string,&nbsp;low:&nbsp;ValueType,&nbsp;high:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value within the specified range.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**low**: minimum value that matches the **RdbPredicates**.<br>-&nbsp;**high**: maximum value that matches the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | between(field:&nbsp;string,&nbsp;low:&nbsp;ValueType,&nbsp;high:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value within the specified range.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**low**: minimum value that matches the **RdbPredicates**.<br>-&nbsp;**high**: maximum value that matches the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | notBetween(field:&nbsp;string,&nbsp;low:&nbsp;ValueType,&nbsp;high:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value out of the specified range.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**low**: minimum value that matches the **RdbPredicates**.<br>-&nbsp;**high**: maximum value that matches the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | notBetween(field:&nbsp;string,&nbsp;low:&nbsp;ValueType,&nbsp;high:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value out of the specified range.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**low**: minimum value that matches the **RdbPredicates**.<br>-&nbsp;**high**: maximum value that matches the **RdbPredicates**.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | greaterThan(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicatesgr | Sets the **RdbPredicates** to match the field with data type **ValueType** and value greater than the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | greaterThan(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicatesgr | Sets the **RdbPredicates** to match the field with data type **ValueType** and value greater than the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | lessThan(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value less than the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | lessThan(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value less than the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | greaterThanOrEqualTo(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value greater than or equal to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | greaterThanOrEqualTo(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value greater than or equal to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | lessThanOrEqualTo(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value less than or equal to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | lessThanOrEqualTo(field:&nbsp;string,&nbsp;value:&nbsp;ValueType):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **ValueType** and value less than or equal to the specified value.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: value specified.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | orderByAsc(field:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the column with values sorted in ascending order.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that sorts the values in ascending order. | | RdbPredicates | orderByAsc(field:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the column with values sorted in ascending order.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | orderByDesc(field:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the column with values sorted in descending order.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that sorts the values in descending order. | | RdbPredicates | orderByDesc(field:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the column with values sorted in descending order.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | distinct():&nbsp;RdbPredicates | Sets the **RdbPredicates** to filter out duplicate records.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that can filter out duplicate records. | | RdbPredicates | distinct():&nbsp;RdbPredicates | Sets the **RdbPredicates** to filter out duplicate records.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that can filter out duplicate records.|
| RdbPredicates | limitAs(value:&nbsp;number):&nbsp;RdbPredicates | Sets the **RdbPredicates** to specify the maximum number of records.<br>-&nbsp;**value**: maximum number of records.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that can be used to set the maximum number of records. | | RdbPredicates | limitAs(value:&nbsp;number):&nbsp;RdbPredicates | Sets the **RdbPredicates** to specify the maximum number of records.<br>-&nbsp;**value**: maximum number of records.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that can be used to set the maximum number of records.|
| RdbPredicates | offsetAs(rowOffset:&nbsp;number):&nbsp;RdbPredicates | Sets the **RdbPredicates** to specify the start position of the returned result.<br>-&nbsp;**rowOffset**: start position of the returned result. The value is a positive integer.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that specifies the start position of the returned result. | | RdbPredicates | offsetAs(rowOffset:&nbsp;number):&nbsp;RdbPredicates | Sets the **RdbPredicates** to specify the start position of the returned result.<br>-&nbsp;**rowOffset**: start position of the returned result. The value is a positive integer.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that specifies the start position of the returned result.|
| RdbPredicates | groupBy(fields:&nbsp;Array&lt;string&gt;):&nbsp;RdbPredicates | Sets the **RdbPredicates** to group rows that have the same value into summary rows.<br>-&nbsp;**fields**: names of the columns grouped for querying data.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that groups rows with the same value. | | RdbPredicates | groupBy(fields:&nbsp;Array&lt;string&gt;):&nbsp;RdbPredicates | Sets the **RdbPredicates** to group rows that have the same value into summary rows.<br>-&nbsp;**fields**: names of the columns grouped for querying data.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that groups rows with the same value.|
| RdbPredicates | indexedBy(indexName:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to specify the index column.<br>-&nbsp;**indexName**: name of the index column.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that specifies the index column. | | RdbPredicates | indexedBy(indexName:&nbsp;string):&nbsp;RdbPredicates | Sets the **RdbPredicates** to specify the index column.<br>-&nbsp;**indexName**: name of the index column.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that specifies the index column.|
| RdbPredicates | in(field:&nbsp;string,&nbsp;value:&nbsp;Array&lt;ValueType&gt;):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **Array&#60;ValueType&#62;** and value within the specified range.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: array of **ValueType** to match.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | in(field:&nbsp;string,&nbsp;value:&nbsp;Array&lt;ValueType&gt;):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **Array&#60;ValueType&#62;** and value within the specified range.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: array of **ValueType** to match.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
| RdbPredicates | notIn(field:&nbsp;string,&nbsp;value:&nbsp;Array&lt;ValueType&gt;):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **Array&#60;ValueType&#62;** and value out of the specified range.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: array of **ValueType** to match.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field. | | RdbPredicates | notIn(field:&nbsp;string,&nbsp;value:&nbsp;Array&lt;ValueType&gt;):&nbsp;RdbPredicates | Sets the **RdbPredicates** to match the field with data type **Array&#60;ValueType&#62;** and value out of the specified range.<br>-&nbsp;**field**: column name in the database table.<br>-&nbsp;**value**: array of **ValueType** to match.<br>-&nbsp;**RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
**Using the Result Set** **Using the Result Set**
A result set can be regarded as a row of data in the queried results. It allows you to traverse and access the data you have queried. The following table describes the external APIs of **ResultSet**. A result set can be regarded as a row of data in the queried results. It allows you to traverse and access the data you have queried. The following table describes the external APIs of **ResultSet**.
> ![icon-notice.gif](public_sys-resources/icon-notice.gif) **NOTICE** > ![icon-notice.gif](public_sys-resources/icon-notice.gif) **NOTICE**<br/>
> After a result set is used, you must call the **close()** method to close it explicitly. > After a result set is used, you must call the **close()** method to close it explicitly.
**Table 7** APIs for using the result set **Table 7** APIs for using the result set
...@@ -206,12 +207,12 @@ You can obtain the distributed table name for a remote device based on the local ...@@ -206,12 +207,12 @@ You can obtain the distributed table name for a remote device based on the local
The sample code is as follows: The sample code is as follows:
``` ```
import dataRdb from '@ohos.data.rdb'; import data_rdb from '@ohos.data.rdb'
const CREATE_TABLE_TEST = "CREATE TABLE IF NOT EXISTS test (" + "id INTEGER PRIMARY KEY AUTOINCREMENT, " + "name TEXT NOT NULL, " + "age INTEGER, " + "salary REAL, " + "blobType BLOB)"; const CREATE_TABLE_TEST = "CREATE TABLE IF NOT EXISTS test (" + "id INTEGER PRIMARY KEY AUTOINCREMENT, " + "name TEXT NOT NULL, " + "age INTEGER, " + "salary REAL, " + "blobType BLOB)";
const STORE_CONFIG = {name: "rdbstore.db",} const STORE_CONFIG = {name: "rdbstore.db",}
let rdbStore = await dataRdb.getRdbStore(STORE_CONFIG, 1); let rdbStore = await data_rdb.getRdbStore(STORE_CONFIG, 1);
await rdbStore.executeSql(CREATE_TABLE_TEST); await rdbStore.executeSql(CREATE_TABLE_TEST);
``` ```
...@@ -235,7 +236,7 @@ You can obtain the distributed table name for a remote device based on the local ...@@ -235,7 +236,7 @@ You can obtain the distributed table name for a remote device based on the local
The sample code is as follows: The sample code is as follows:
``` ```
let predicates = new dataRdb.RdbPredicates("test"); let predicates = new data_rdb.RdbPredicates("test");
predicates.equalTo("name", "Tom") predicates.equalTo("name", "Tom")
let resultSet = await rdbStore.query(predicates) let resultSet = await rdbStore.query(predicates)
...@@ -272,7 +273,7 @@ You can obtain the distributed table name for a remote device based on the local ...@@ -272,7 +273,7 @@ You can obtain the distributed table name for a remote device based on the local
The sample code is as follows: The sample code is as follows:
``` ```
let predicate = new dataRdb.RdbPredicates('test') let predicate = new data_rdb.RdbPredicates('test')
predicate.inDevices(['12345678abcde']) predicate.inDevices(['12345678abcde'])
let promise = rdbStore.sync(rdb.SyncMode.SYNC_MODE_PUSH, predicate) let promise = rdbStore.sync(rdb.SyncMode.SYNC_MODE_PUSH, predicate)
promise.then(result) { promise.then(result) {
......
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