1# 分布式数据管理子系统JS API变更 2 3OpenHarmony 3.2 Beta3版本相较于OpenHarmony 3.2 Beta2版本，分布式数据管理子系统的API变更如下: 4 5## 接口变更 6 7| 模块名 | 类名 | 方法/属性/枚举/常量 | 变更类型 | 8|---|---|---|---| 9| ohos.data.distributedData | KVStore | deleteBackup(files:Array\<string>, callback: AsyncCallback\<Array\<[string, number]>>):void;<br>deleteBackup(files:Array\<string>): Promise\<Array\<[string, number]>>; | 新增 | 10| ohos.data.distributedData | KVStore | restore(file:string, callback: AsyncCallback\<void>):void;<br>restore(file:string): Promise\<void>; | 新增 | 11| ohos.data.distributedData | KVStore | backup(file:string, callback: AsyncCallback\<void>):void;<br>backup(file:string): Promise\<void>; | 新增 | 12| ohos.data.rdb | StoreConfig | encrypt?: boolean; | 新增 | 13| ohos.data.rdb | RdbStore | remoteQuery(device: string, table: string, predicates: RdbPredicates, columns: Array\<string>, callback: AsyncCallback\<ResultSet>): void;<br>remoteQuery(device: string, table: string, predicates: RdbPredicates, columns: Array\<string>): Promise\<ResultSet>; | 新增 | 14| ohos.data.rdb | RdbStore | batchInsert(table: string, values: Array\<ValuesBucket>, callback: AsyncCallback\<number>): void;<br>batchInsert(table: string, values: Array\<ValuesBucket>): Promise\<number>; | 新增 | 15| ohos.data.dataShare | DataShareHelper | getFileTypes(uri: string, mimeTypeFilter:string, callback: AsyncCallback\<Array\<string>>): void;<br>getFileTypes(uri: string, mimeTypeFilter: string): Promise\<Array\<string>>; | 删除 | 16| ohos.data.dataShare | DataShareHelper | getType(uri: string, callback: AsyncCallback\<string>): void;<br>getType(uri: string): Promise\<string>; | 删除 | 17| ohos.data.dataShare | DataShareHelper | openFile(uri: string, mode: string, callback: AsyncCallback\<number>): void;<br>openFile(uri: string, mode: string): Promise\<number>; | 删除 |