程序包 ohos.data

Provides basic capabilities of the local data framework and data-sharing service. Local data generally refers to user-defined structured or unstructured data, such as the XML data. Data-sharing indicates the cross-device or cross-scenario data transmission.

This package contains the rdb ohos.data.rdb, orm ohos.data.orm, preferences ohos.data.preferences, and dataability ohos.data.dataability modules to meet users' demands on data services in different scenarios.

从以下版本开始:

1

类概要

类	说明
DatabaseFileConfig	Manages database file configurations.
DatabaseFileConfig.Builder	Represents a builder of DatabaseFileConfig objects.
DatabaseHelper	Provides a multi mode-data-access framework to operate application data in databases.

枚举概要

枚举	说明
DatabaseFileSecurityLevel	Enumerates security levels of the database file.
DatabaseFileType	Enumerates database file types.

异常错误概要

异常错误	说明
IllegalPredicateException	Represents an exception indicating an invalid predicate.