答案及解析：[单选题]The（）scheme in a database system is responsible for the detection of failures and for the restora - 软件水平题库- 答案窝(daanwo.com)-大学生作业答案及考资分享平台

问题：

[单选题] The（）scheme in a database system is responsible for the detection of failures and for the restoration of the database to a state that existed before the occurrence of the failure.

A.query