我遇到了一个问题，即对我知道存在的记录进行全文搜索时没有得到任何结果。删除索引并重新创建它解决了问题，这让我认为记录没有添加到索引中。是什么原因造成的？
这是在我们的 QA 环境中，我们偶尔会从生产备份中恢复此环境。会不会造成这种情况？ 编辑我刚刚在生产环境中运行了相同的查询，全文索引在那里返回了正确的结果，所以我不确定从生产环境中恢复是否会成为问题。
【问题讨论】：
标签： sql-server sql-server-2008-r2 full-text-search
根据您的问题，我想说未添加新记录的最可能原因是基于全文索引填充方式的配置。在 SQL Server 2008 R2 中，全文索引基于计划作业进行更新，而不是像其他索引那样在插入/更新时动态更新。要检查的问题：
另外，来自在线图书，在CREATE FULLTEXT INDEX (Transact-SQL) 部分：
CHANGE_TRACKING [ = ] { MANUAL | AUTO | OFF [ , NO POPULATION ] }
Specifies whether changes (updates, deletes or inserts) made to table columns that are
covered by the full-text index will be propagated by SQL Server to the full-text index.
Data changes through WRITETEXT and UPDATETEXT are not reflected in the full-text index,
and are not picked up with change tracking.
MANUAL
Specifies that the tracked changes must be propagated manually by calling the
ALTER FULLTEXT INDEX … START UPDATE POPULATION Transact-SQL statement (manual
population). You can use SQL Server Agent to call this Transact-SQL statement
periodically.
AUTO
Specifies that the tracked changes will be propagated automatically as data is
modified in the base table (automatic population). Although changes are propagated
automatically, these changes might not be reflected immediately in the full-text
index. AUTO is the default.
OFF [ , NO POPULATION]
Specifies that SQL Server does not keep a list of changes to the indexed data. When
NO POPULATION is not specified, SQL Server populates the index fully after it
is created.
The NO POPULATION option can be used only when CHANGE_TRACKING is OFF. When
NO POPULATION is specified, SQL Server does not populate an index after it is
created. The index is only populated after the user executes the
ALTER FULLTEXT INDEX command with the START FULL POPULATION or
START INCREMENTAL POPULATION clause.
【讨论】：
CHANGE_TRACKING 设置为AUTO。如何检查是否有时间表以及是否已禁用？