# 头文件

* **[oh_preferences.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-preferences-h)**   
* **[oh_preferences_err_code.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-preferences-err-code-h)**   
* **[oh_preferences_option.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-preferences-option-h)**   
* **[oh_preferences_value.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-preferences-value-h)**   
* **[data_asset.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-data-asset-h)**   
* **[oh_cursor.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-cursor-h)**   
* **[oh_data_value.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-data-value-h)**   
* **[oh_data_values.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-data-values-h)**   
* **[oh_data_values_buckets.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-data-values-buckets-h)**   
* **[oh_predicates.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-predicates-h)**   
* **[oh_rdb_crypto_param.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-rdb-crypto-param-h)**   
* **[oh_rdb_transaction.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-rdb-transaction-h)**   
* **[oh_rdb_types.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-rdb-types-h)**   
* **[oh_value_object.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-value-object-h)**   
* **[oh_values_bucket.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-oh-values-bucket-h)**   
* **[relational_store.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-relational-store-h)**   
* **[relational_store_error_code.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-relational-store-error-code-h)**   
* **[udmf.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-udmf-h)**   
* **[udmf_err_code.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-udmf-err-code-h)**   
* **[udmf_meta.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-udmf-meta-h)**   
* **[uds.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-uds-h)**   
* **[utd.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-utd-h)**