The first level MMU entry may contain an invalid entry or it contains a 2nd level page table address that gives a bus error when accessed.
第一级MMU条目可能包含一个无效的条目或它包含了2 第二级页表的访问时，给出了一个的总线错误的地址。
For table space-level restore, pick the table Spaces to be restored in the next page.
对于表空间级恢复，要在下个页面中选择要恢复的表空间。
Some databases (such as SQL Server) allow you to disable the page-level locking in hopes that it won't escalate from a row-level lock to a table-level lock.
一些数据库(比如sql Server)允许您禁用页面级锁，以期它不会从行级锁切换到表级锁。
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