[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fRRZRbiXuve9hER_hyBsPQjQyRJKYN2oW2OvdG54P_rM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-11-25 17:11:05",108487894,[8,9,10,11],"Share-lock","logging","Deadlock","Checkpointing",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},3,"a70f9ec0efa5151d13534590d0aca0eb","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0a33c450d3e6c26f16bbce03f9264e35.png","数据库原理及应用","dcba8d11fd5a4b71a7921eef349fea35","单元测验(双语)-7-数据库恢复","When a system crash occurs, redoing\u002Fundoing all transactions recorded in the log can be very slow. Streamline recovery procedure by periodically performing ______",[21,32,35],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],108487892,[25,26,27,28],"Concurrency-control manager","Recovery manager","Integrity manager","Buffer manager","Ensuring the atomicity and durability properties of a transaction is the responsibility of the database system itself, specifically of the ______","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":30,"type":31},[],108487896,[39,40,41,42],"the log record for that write be created and added to the log, after the database is modified","the log record for that write be created and added to the log, before the database is modified","the log record for that write be created and added to the log, as soon as the database is modified","the log record for that write be created and added to the log, time is not important","The log is a sequence of log records recording all the update activities in the database. Whenever a transaction performs a write, it is essential that ______"]