如果用户选择取消此操作，则数据库将不打开。
If the user chooses to cancel the operation, the database is not opened.
如果向该模型添加这些权限，则数据库项目的加载速度将变慢。
If you add the permissions to the model, your database project will load more slowly.
如果页面写入确实不完整，则数据库恢复通常会检测到残缺页面。
Torn pages are typically detected by database recovery if it is truly an incomplete write of a page.
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