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sqlServer)允许您禁用页面级锁,以期它不会从行级锁切换到表级锁。
Locking escalation to page-level or table-level locking.
从页面级锁升级到表级锁。
So we can see 3 active locks: exclusive lock on key (row) level and 2 intent-exclusive locks on the page and table levels.
我们看到了3个锁信息,一个排它锁在行记录上,两个意向排它锁在页级以及数据表对象上。
The leaf-level pages store the index keys and page pointers, plus a pointer to the row offset table on the data page.
并且聚集索引中数据页就是页级别索引页,综合上述两点,聚集索引占据空间更小。
The leaf-level pages store the index keys and page pointers, plus a pointer to the row offset table on the data page.
并且聚集索引中数据页就是页级别索引页,综合上述两点,聚集索引占据空间更小。
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