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Merge pull request !6549 from Annie_wang/PR6098
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en/application-dev/reference/apis/js-apis-data-ability.md
浏览文件 @ 46805fbb
# DataAbilityPredicates
> **NOTE**
**DataAbility** provides APIs for creating predicates, which implement different query methods for relational database (RDB) stores.
> **NOTE**<br/>
>
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
......@@ -24,15 +26,15 @@ Creates an **RdbPredicates** object from a **DataAbilityPredicates** object.
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| name | string | Yes| Table name in the RDB store.|
| dataAbilityPredicates | [DataAbilityPredicates](#dataabilitypredicates) | Yes| **DataAbilityPredicates** object. |
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| name | string | Yes| Name of a database table.|
| dataAbilityPredicates | [DataAbilityPredicates](#dataabilitypredicates) | Yes| **DataAbilityPredicates** object. |
**Return value**
| Type| Description|
| -------- | -------- |
| rdb.[RdbPredicates](js-apis-data-rdb.md#rdbpredicates) | **RdbPredicates** object created.|
| Type| Description|
| -------- | -------- |
| rdb.[RdbPredicates](js-apis-data-rdb.md#rdbpredicates) | **RdbPredicates** object created.|
**Example**
```js
......@@ -58,15 +60,15 @@ Sets a **DataAbilityPredicates** object to match the field with data type **Valu
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -85,15 +87,15 @@ Sets a **DataAbilityPredicates** object to match the field with data type **Valu
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -112,9 +114,9 @@ Adds a left parenthesis to this **DataAbilityPredicates**.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object with a left parenthesis.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object with a left parenthesis.|
**Example**
```js
......@@ -138,9 +140,9 @@ Adds a right parenthesis to this **DataAbilityPredicates**.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object with a right parenthesis.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object with a right parenthesis.|
**Example**
```js
......@@ -164,9 +166,9 @@ Adds the OR condition to this **DataAbilityPredicates**.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object with the OR condition.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object with the OR condition.|
**Example**
```js
......@@ -187,9 +189,9 @@ Adds the AND condition to this **DataAbilityPredicates**.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object with the AND condition.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object with the AND condition.|
**Example**
```js
......@@ -210,15 +212,15 @@ Sets a **DataAbilityPredicates** object to match a string containing the specifi
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -237,15 +239,15 @@ Sets a **DataAbilityPredicates** object to match a string that starts with the s
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -264,15 +266,15 @@ Sets a **DataAbilityPredicates** object to match a string that ends with the spe
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```
......@@ -291,14 +293,14 @@ Sets a **DataAbilityPredicates** object to match the field whose value is null.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -317,14 +319,14 @@ Sets a **DataAbilityPredicates** object to match the field whose value is not nu
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -343,15 +345,15 @@ Sets a **DataAbilityPredicates** object to match a string that is similar to the
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -370,15 +372,15 @@ Sets a **DataAbilityPredicates** object to match the specified string.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | string | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -397,16 +399,16 @@ Sets a **DataAbilityPredicates** object to match the field with data type **Valu
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| low | [ValueType](#valuetype) | Yes| Minimum value to match the **DataAbilityPredicates**.|
| high | [ValueType](#valuetype) | Yes| Maximum value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| low | [ValueType](#valuetype) | Yes| Minimum value to match the **DataAbilityPredicates**.|
| high | [ValueType](#valuetype) | Yes| Maximum value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -425,16 +427,16 @@ Sets a **DataAbilityPredicates** object to match the field with data type **Valu
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| low | [ValueType](#valuetype) | Yes| Minimum value to match the **DataAbilityPredicates**.|
| high | [ValueType](#valuetype) | Yes| Maximum value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| low | [ValueType](#valuetype) | Yes| Minimum value to match the **DataAbilityPredicates**.|
| high | [ValueType](#valuetype) | Yes| Maximum value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -453,15 +455,15 @@ Sets a **DataAbilityPredicates** object to match the field with data type **Valu
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -480,15 +482,15 @@ Sets a **DataAbilityPredicates** object to match the field with data type **Valu
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -507,15 +509,15 @@ Sets a **DataAbilityPredicates** object to match the field with data type **Valu
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -534,15 +536,15 @@ Sets a **DataAbilityPredicates** object to match the field with data type **Valu
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | [ValueType](#valuetype) | Yes| Value to match the **DataAbilityPredicates**.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -561,14 +563,14 @@ Sets a **DataAbilityPredicates** object to match the column with values sorted i
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -587,14 +589,14 @@ Sets a **DataAbilityPredicates** object to match the column with values sorted i
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -613,9 +615,9 @@ Sets a **DataAbilityPredicates** object to filter out duplicate records.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that can filter out duplicate records.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that can filter out duplicate records.|
**Example**
```js
......@@ -634,14 +636,14 @@ Set a **DataAbilityPredicates** object to specify the maximum number of records.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| value | number | Yes| Maximum number of records.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| value | number | Yes| Maximum number of records.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that specifies the maximum number of records.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that specifies the maximum number of records.|
**Example**
```js
......@@ -660,14 +662,14 @@ Sets a **DataAbilityPredicates** object to specify the start position of the ret
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| rowOffset | number | Yes| Number of rows to offset from the beginning. The value is a positive integer.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| rowOffset | number | Yes| Number of rows to offset from the beginning. The value is a positive integer.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that specifies the start position of the returned result.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that specifies the start position of the returned result.|
**Example**
```js
......@@ -686,14 +688,14 @@ Sets a **DataAbilityPredicates** object to group rows that have the same value i
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| fields | Array&lt;string&gt; | Yes| Names of columns to group.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| fields | Array&lt;string&gt; | Yes| Names of columns to group.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that groups rows with the same value.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that groups rows with the same value.|
**Example**
```js
......@@ -705,20 +707,20 @@ Sets a **DataAbilityPredicates** object to group rows that have the same value i
indexedBy(field: string): DataAbilityPredicates
Sets a **DataAbilityPredicates** object to specify the index column.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
Sets a **DataAbilityPredicates** object to specify the index column.
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| indexName | string | Yes| Name of the index column.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| indexName | string | Yes| Name of the index column.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that specifies the index column.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that specifies the index column.|
**Example**
```js
......@@ -737,16 +739,16 @@ Sets a **DataAbilityPredicates** object to match the field with data type Array<
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | Array&lt;[ValueType](#valuetype)&gt; | Yes| Array of **ValueType**s to match.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | Array&lt;[ValueType](#valuetype)&gt; | Yes| Array of **ValueType**s to match.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......@@ -765,16 +767,16 @@ Sets a **DataAbilityPredicates** object to match the field with data type Array<
**System capability**: SystemCapability.DistributedDataManager.DataShare.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | Array&lt;[ValueType](#valuetype)&gt; | Yes| Array of **ValueType**s to match.|
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| field | string | Yes| Column name in the table.|
| value | Array&lt;[ValueType](#valuetype)&gt; | Yes| Array of **ValueType**s to match.|
**Return value**
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
| Type| Description|
| -------- | -------- |
| [DataAbilityPredicates](#dataabilitypredicates) | **DataAbilityPredicates** object that matches the specified field.|
**Example**
```js
......
en/application-dev/reference/apis/js-apis-data-resultset.md
浏览文件 @ 46805fbb
# Result Set
A result set is a set of results returned after the relational database (RDB) query APIs are called. You can use the **resultset** APIs to obtain required data.
> **NOTE**<br/>
>
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
## Usage
You need to use [RdbStore.query()](js-apis-data-rdb.md#query) to obtain the **resultSet** object.
You need to use [RdbStore.query()](js-apis-data-rdb.md#query) to obtain a **resultSet** object.
```js
import dataRdb from '@ohos.data.rdb';
......@@ -20,7 +23,7 @@ promise.then((resultSet) => {
## ResultSet
Provides methods to access the result set, which is obtained by querying the relational database (RDB) store.
Provides methods to access the result set, which is obtained by querying the RDB store.
### Attributes
......
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