SQLSERVER中的鬼影索引
SQLSERVER中的鬼影索引 看这篇文章之前可以先看一下鬼影记录 了解了解一下SQLSERVER里的鬼影记录 关于鬼影记录的翻译一 关于鬼影记录的翻译二 当删除表中的某一条记录的时候，索引页面的对应记录并不是马上删除，而是标记为鬼影，当提交事务的时候才真正删除
SQLSERVER中的鬼影索引
看这篇文章之前可以先看一下鬼影记录
了解了解一下SQLSERVER里的鬼影记录
关于鬼影记录的翻译一
关于鬼影记录的翻译二
当删除表中的某一条记录的时候，索引页面的对应记录并不是马上删除，而是标记为鬼影，当提交事务的时候才真正删除索引记录，
或者回滚事务，鬼影索引记录才会恢复为正常索引记录，，这样做的目的就是提高了性能
鬼影索引只会出现在非聚集索引页，聚集索引页是没有鬼影索引的
建立环境
testghostindexnoncluster(id INT IDENTITY(1,1),NAME VARCHAR(20)) testghostindexnoncluster(name) IX_testghostindexnoncluster ) .
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